Lasse Løvstakken

Om

My research interests is targeted towards medical ultrasound imaging, a method where echoes from high-frequency sound waves emitted into the body can be used to make images and measure properties of tissue and blood flow. Ultrasound imaging technology has had a remarkable development in recent years, providing a basis for clearer images that can be used to obtain a more certain medical diagnosis in the future healthcare.

Follow this link to read more about one of my on-going research projects where we are developing and evaluating 3D ultrasound imaging of blood flow in the hearts of children and adults: http://blog.medisin.ntnu.no/3d-ultralydbilder-av-blodstrom-kan-gi-bedre-forstaelse-av-hjertesykdom/

Publikasjoner

2025

van de Vyver, Gilles; Måsøy, Svein-Erik; Dalen, Håvard; Grenne, Bjørnar Leangen; Holte, Espen; Olaisen, Sindre Hellum. (2025) Regional Image Quality Scoring for 2-D Echocardiography Using Deep Learning. Ultrasound in Medicine and Biology
Academic article
Sørensen, Kristian; Fadnes, Solveig; Myklebust, Tor Åge; Løvstakken, Lasse; Mertens, Luc; Nyrnes, Siri Ann. (2025) Changes in left ventricular diastolic flow dynamics in the neonatal transition period and beyond. . American Journal of Physiology. Heart and Circulatory Physiology
Academic article
Sørensen, Kristian; Fadnes, Solveig; Mawad, Wadi; Henry, Matthew; Flade, Hans-Martin; Østvik, Andreas. (2025) Intraventricular Pressure Difference Estimation based on Blood Speckle Tracking - Invasive Validation and Early Clinical Application. European Heart Journal-Cardiovascular Imaging
Academic article

2024

Nancy, Bazilchuk; Pasdeloup, David Francis Pierre; Dalen, Håvard; Løvstakken, Lasse; Måsøy, Svein-Erik. (2024) Kunstig intelligens hjelper til med å se hjertet ditt. Gemini
Popular scientific article
Garone, Rosa Virginia; Lønmo, Tor Inge Birkenes; Schimel, Alexandre; Diesing, Markus; Thorsnes, Terje; Løvstakken, Lasse. (2024) Corrigendum: Seabed classification of multibeam echosounder data into bedrock/non-bedrock using deep learning(Front. Earth Sci., (2023), 11, (1285368), 10.3389/feart.2023.1285368). Frontiers in Earth Science
Errata
Løvstakken, Lasse; Grenne, Bjørnar Leangen. (2024) The Road to Robust and Automated Strain Measurements in Echocardiography by Deep Learning. JACC Cardiovascular Imaging
Editorial
Nancy, Bazilchuk; Pasdeloup, David Francis Pierre; Dalen, Håvard; Løvstakken, Lasse; Måsøy, Svein-Erik. (2024) Peering into your heart – with the help of AI. Gemini (English edition)
Popular scientific article
Fermann, Benjamin Strandli; Nyberg, John; Remme, Espen; Grue, Jahn Frederik; Grue, Helén; Håland, Roger. (2024) Cardiac Valve Event Timing in Echocardiography Using Deep Learning and Triplane Recordings. IEEE Journal of Biomedical and Health Informatics
Academic article
Nyberg, John; Østvik, Andreas; Salte, Ivar Mjåland; Olaisen, Sindre Hellum; Karlsen, Sigve; Dahlslett, Thomas. (2024) Deep learning improves test–retest reproducibility of regional strain in echocardiography. European Heart Journal – Imaging Methods and Practice (EHJ-IMP)
Academic article
Yari, Yasin; Næve, Ingun; Hammerdal, Asle; Bergtun, Per Helge; Måsøy, Svein-Erik; Voormolen, Marco Marien. (2024) Automated Measurement of Ovary Development in Atlantic Salmon Using Deep Learning. Ultrasound in Medicine and Biology
Academic article
Chernyshov, Artem; Grue, Jahn Frederik; Nyberg, John; Grenne, Bjørnar Leangen; Dalen, Håvard; Aase, Svein Arne. (2024) Automated Segmentation and Quantification of the Right Ventricle in 2-D Echocardiography. Ultrasound in Medicine and Biology
Academic article
Indimath, Shivanandan; Wifstad, Sigurd Vangen; Bryon, Vincent; Bøklepp, Bjarne Rosvoll; Løvstakken, Lasse; Avdal, Jørgen. (2024) Subpixel segmentation of borehole fractures from low resolution Doppler ultrasound images using machine learning. Geoenergy Science and Engineering
Academic article
Azad, Md Abulkalam; Chernyshov, Artem; Nyberg, John Anders Tomas; Tveten, Ingrid Elisabeth; Løvstakken, Lasse; Dalen, Håvard. (2024) EchoTracker: Advancing Myocardial Point Tracking in Echocardiography. Springer
Academic chapter/article/Conference paper
Wifstad, Sigurd Vangen; Kildahl, Henrik Agerup; Holte, Espen; Berg, Erik Andreas Rye; Grenne, Bjørnar Leangen; Salvesen, Øyvind Olav. (2024) EasyPISA: Automatic Integrated PISA Measurements of Mitral Regurgitation From 2-D Color-Doppler Using Deep Learning. Ultrasound in Medicine and Biology
Academic article
Wifstad, Sigurd Vangen; Kildahl, Henrik Agerup; Grenne, Bjørnar Leangen; Holte, Espen; Hauge, Ståle Wågen; Sæbø, Sigbjørn. (2024) Mitral Valve Segmentation and Tracking from Transthoracic Echocardiography Using Deep Learning. Ultrasound in Medicine and Biology
Academic article
van de Vyver, Gilles; Thomas, Sarina; Ben-Yosef, Guy; Olaisen, Sindre Hellum; Dalen, Håvard; Løvstakken, Lasse. (2024) Toward Robust Cardiac Segmentation Using Graph Convolutional Networks. IEEE Access
Academic article
Mohajery, Mohammad; Salles, Sebastien Andre Roger; Espeland, Torvald; Wigen, Morten Smedsrud; Fadnes, Solveig; Løvstakken, Lasse. (2024) The 3D Estimation of Mechanical Wave Velocities in the Heart: Methods and Insights. IEEE Open Journal of Ultrasonics, Ferroelectrics, and Frequency Control Society (OJUFFC)
Academic article
Sauvage, Jack; Moustefaoui, Safa; Fiorentini, Stefano; Venet, Maelys; Fadnes, Solveig; Løvstakken, Lasse. (2024) Detection of natural pulse waves (PWs) in 3D using high frame rate imaging for anisotropy characterization. Frontiers in Physics
Academic article
Yari, Yasin; Næve, Ingun; Helge Bergtun, Per; Hammerdal, Asle; Måsøy, Svein-Erik; Voormolen, Marco Marien. (2024) Deep Learning for Automated Egg Maturation Prediction of Atlantic Salmon Using Ultrasound Imaging. IEEE Access
Academic article

2023

Eriksen-Volnes, Torfinn Kirknes; Grue, Jahn Frederik; Olaisen, Sindre Hellum; Letnes, Jon Magne; Nes, Bjarne Martens; Løvstakken, Lasse. (2023) Normalized Echocardiographic Values From Guideline-Directed Dedicated Views for Cardiac Dimensions and Left Ventricular Function. JACC Cardiovascular Imaging
Academic article
Bryon, Vincent; Wifstad, Sigurd Vangen; Grønli, Thomas; Hu, Jieyu; Løvstakken, Lasse. (2023) Automated Patient-Specific Left Ventricular Simulations for Cardiac Function Evaluation Using Image-Based Computational Fluid Dynamics and Color Flow Imaging. IEEE conference proceedings
Academic chapter/article/Conference paper
Nyberg, John; Jakobsen, Even Olav; Østvik, Andreas; Holte, Espen; Stølen, Stian Bergseng; Løvstakken, Lasse. (2023) Echocardiographic Reference Ranges of Global Longitudinal Strain for All Cardiac Chambers Using Guideline-Directed Dedicated Views. JACC Cardiovascular Imaging
Academic article
Hu, Jieyu; Smistad, Erik; Grenne, Bjørnar Leangen; Holte, Espen; Dalen, Håvard; Løvstakken, Lasse. (2023) Left-Ventricular Volume Estimation in Contrast-Enhanced Echocardiography Using Deep Learning. IEEE conference proceedings
Academic chapter/article/Conference paper
Olaisen, Sindre Hellum; Smistad, Erik; Espeland, Torvald; Hu, Jieyu; Pasdeloup, David Francis Pierre; Østvik, Andreas. (2023) Automatic measurements of left ventricular volumes and ejection fraction by artificial intelligence: clinical validation in real time and large databases. European Heart Journal-Cardiovascular Imaging
Academic article
Kvalevåg, Magnus; Vrålstad, Anders Emil; Rindal, Ole Marius Hoel; Bjåstad, Tore Grüner; Dénarié, Bastien; Kristoffersen, Kjell. (2023) vbeam: A Fast and Differentiable Beamformer for Optimizing Ultrasound Imaging. Proceedings - IEEE Ultrasonics Symposium
Academic article
Mohajery, Mohammad; Salles, Sebastien Andre Roger; Espeland, Torvald; Fadnes, Solveig; Løvstakken, Lasse. (2023) Automated 3D velocity estimation of natural mechanical wave propagation in the myocardium. IEEE Open Journal of Ultrasonics, Ferroelectrics, and Frequency Control Society (OJUFFC)
Academic article
Henry, Matthew; Fadnes, Solveig; Løvstakken, Lasse; Mawad, Wadi; Mertens, Luc; Nyrnes, Siri Ann. (2023) Flow Dynamics in Children With Bicuspid Aortic Valve: A Blood Speckle Tracking Study. Ultrasound in Medicine and Biology
Academic article
Nyberg, John Anders Tomas; Jakobsen, Even Olav; Østvik, Andreas; Holte, Espen; Stølen, Stian; Løvstakken, Lasse. (2023) Determinants of left atrial reservoir strain in a large healthy population. European Heart Journal-Cardiovascular Imaging
Abstract
Sørensen, Kristian; Fadnes, Solveig; Mertens, Luc; Henry, Matthew; Segers, Patrick; Løvstakken, Lasse. (2023) Assessment of Early Diastolic Intraventricular Pressure Difference in Children by Blood Speckle-Tracking Echocardiography. Journal of the American Society of Echocardiography
Academic article
Salte, Ivar Mjåland; Østvik, Andreas; Olaisen, Sindre Hellum; Karlsen, Sigve; Dahlslett, Thomas; Smistad, Erik. (2023) Deep Learning for Improved Precision and Reproducibility of Left Ventricular Strain in Echocardiography: A Test-Retest Study. Journal of the American Society of Echocardiography
Academic article
Daae, Annichen Søyland; Wigen, Morten Smedsrud; Halvorsrød, Marlene Iversen; Løvstakken, Lasse; Støylen, Asbjørn; Fadnes, Solveig. (2023) Retrospective Ultrasound Doppler Quantification Using a Single Acquisition in Healthy Adults. Ultrasound in Medicine and Biology
Academic article
Szerypo Magelssen, Malgorzata Izabela; Hjorth-Hansen, Anna; Andersen, Garrett Newton; Graven, Torbjørn; Kleinau, Jens Olaf; Skjetne, Kyrre. (2023) Clinical Influence of Handheld Ultrasound, Supported by Automatic Quantification and Telemedicine, in Suspected Heart Failure. Ultrasound in Medicine and Biology
Academic article
Espeland, Torvald; Wigen, Morten Smedsrud; Dalen, Håvard; Berg, Erik Andreas Rye; Hammer, Tommy Arild; Salles, Sebastien Andre Roger. (2023) Mechanical Wave Velocities in Left Ventricular Walls in Healthy Subjects and Patients With Aortic Stenosis. JACC Cardiovascular Imaging
Academic article
Pasdeloup, David Francis Pierre; Løvstakken, Lasse; Smistad, Erik; Dalen, Håvard. (2023) Deep Learning in the Echocardiography Workflow: Challenges and Opportunities. Norges teknisk-naturvitenskapelige universitet Norges teknisk-naturvitenskapelige universitet
Doctoral dissertation
Salte, Ivar Mjåland; Østvik, Andreas; Olaisen, Sindre Hellum; Karlsen, Sigve; Dahlslett, Thomas; Smistad, Erik. (2023) Response to “Minimal Detectable Change and Reproducibility of Echocardiographic Strain: Implications for Clinical Practice”. Journal of the American Society of Echocardiography
Letter to the editor
Hu, Jieyu; Olaisen, Sindre Hellum; Smistad, Erik; Dalen, Håvard; Løvstakken, Lasse. (2023) Automated 2-D and 3-D Left Atrial Volume Measurements Using Deep Learning. Ultrasound in Medicine and Biology
Academic article
Garone, Rosa Virginia; Birkenes Lønmo, Tor Inge; Schimel, Alexandre; Diesing, Markus; Thorsnes, Terje; Løvstakken, Lasse. (2023) Seabed classification of multibeam echosounder data into bedrock/non-bedrock using deep learning. Frontiers in Earth Science
Academic article
Sæbø, Sigbjørn; Pasdeloup, David Francis Pierre; Pettersen, Håkon Neergaard; Smistad, Erik; Østvik, Andreas; Olaisen, Sindre Hellum. (2023) Real-time guidance by deep learning of experienced operators to improve the standardization of echocardiographic acquisitions . European Heart Journal – Imaging Methods and Practice (EHJ-IMP)
Academic article
Sæbø, Sigbjørn; Pettersen, Håkon Neergaard; Smistad, Erik; Pasdeloup, David Francis Pierre; Stølen, Stian Bergseng; Grenne, Bjørnar Leangen. (2023) Real-time guiding by deep learning during echocardiography to reduce left ventricular foreshortening and measurement variability. European Heart Journal – Imaging Methods and Practice (EHJ-IMP)
Academic article

2022

Hu, Jieyu; Smistad, Erik; Salte, Ivar Mjåland; Dalen, Håvard; Løvstakken, Lasse. (2022) Exploiting temporal information in echocardiography for improved image segmentation. IEEE conference proceedings
Academic chapter/article/Conference paper
Chernyshov, Artem; Østvik, Andreas; Smistad, Erik; Løvstakken, Lasse. (2022) Segmentation of 2D cardiac ultrasound with deep learning: simpler models for a simple task. IEEE conference proceedings
Academic chapter/article/Conference paper
Nguyen, Minh B.; Villemain, Olivier; Friedberg, Mark K.; Løvstakken, Lasse; Rusin, Graig G.; Mertens, Luc. (2022) Artificial intelligence in the pediatric echocardiography laboratory: Automation, physiology, and outcomes. Frontiers in Radiology
Academic literature review
Smistad, Erik; Dalen, Håvard; Grenne, Bjørnar; Løvstakken, Lasse. (2022) Segmentation of parasternal long axis views using deep learning. Proceedings - IEEE Ultrasonics Symposium
Academic article
Smistad, Erik; Østvik, Andreas; Grue, Jahn Frederik; Dalen, Håvard; Løvstakken, Lasse. (2022) Tracking-based mitral annular plane systolic excursion (MAPSE) measurement using deep learning in B-mode ultrasound. Proceedings - IEEE Ultrasonics Symposium
Academic article
Hjorth-Hansen, Anna; Magelssen, Malgorzata Isabela; Andersen, Garrett Newton; Graven, Torbjørn; Kleinau, Jens Olaf; Landstad, Bodil. (2022) Real-time automatic quantification of left ventricular function by hand-held ultrasound devices in patients with suspected heart failure: a feasibility study of a diagnostic test with data from general practitioners, nurses and cardiologists. BMJ Open
Academic article
Hjorth-Hansen, Anna Katarina; Magelssen, Malgorzata Isabela; Andersen, Garrett Newton; Graven, Torbjørn; Kleinau, Jens Olaf; Landstad, Bodil. (2022) User experience and image quality influence on performance of automated real-time quantification of left ventricular function by handheld ultrasound devices: a diagnostic accuracy study with data from general practitioners, nurses and cardiologists. Open heart
Academic article
Wifstad, Sigurd Vangen; Løvstakken, Lasse; Avdal, Jørgen; Berg, Erik Andreas Rye; Torp, Hans; Grenne, Bjørnar. (2022) Quantifying Valve Regurgitation Using 3-D Doppler Ultrasound Images and Deep Learning. IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control
Academic article
Mawad, Wadi; Fadnes, Solveig; Løvstakken, Lasse; Henry, Matthew; Mertens, Luc; Nyrnes, Siri Ann. (2022) Pulmonary Hypertension in Children is associated with Abnormal Flow patterns in the Main Pulmonary Artery as demonstrated by Blood Speckle Tracking. CJC Pediatric and Congenital Heart Disease
Academic article
Pasdeloup, David Francis Pierre; Olaisen, Sindre Hellum; Østvik, Andreas; Sæbø, Sigbjørn; Pettersen, Håkon Neergaard; Holte, Espen. (2022) Real-Time Echocardiography Guidance for Optimized Apical Standard Views. Ultrasound in Medicine and Biology
Academic article
Leinan, Paul Roger; Grønli, Thomas; Skjetne, Paal; Wigen, Morten Smedsrud; Urheim, Stig; Løvstakken, Lasse. (2022) Comparison of ultrasound vector flow imaging and CFD simulations with PIV measurements of flow in a left ventricular outflow trackt phantom - Implications for clinical use and in silico studies. Computers in Biology and Medicine
Academic article
Pettersen, Håkon Neergaard; Sæbø, Sigbjørn; Pasdeloup, David Francis Pierre; Østvik, Andreas; Smistad, Erik; Stølen, Stian Bergseng. (2022) The impact of real-time feedback by deep learning during echocardiographic scanning on test-retest variability of left ventricular systolic function measurements. European Heart Journal-Cardiovascular Imaging
Abstract

2021

Østvik, Andreas; Salte, Ivar Mjåland; Smistad, Erik; Nguyen, Thuy Mi; Melichova, Daniela; Brunvand, Harald. (2021) Myocardial Function Imaging in Echocardiography Using Deep Learning. IEEE Transactions on Medical Imaging
Academic article
Salte, Ivar M.; Østvik, Andreas; Smistad, Erik; Melichova, Daniela; Nguyen, Thuy Mi; Karlsen, Sigve. (2021) Artificial Intelligence for Automatic Measurement of Left Ventricular Strain in Echocardiography. JACC Cardiovascular Imaging
Academic article
Sørensen, Kristian; Fadnes, Solveig; Salvesen, Øyvind; Mertens, Luc; Løvstakken, Lasse; Nyrnes, Siri Ann. (2021) Assessment of Regional Early Diastolic Intraventricular Pressure Gradients by Blood Speckle Tracking in Children. Journal of the American Society of Echocardiography
Abstract
Smistad, Erik; Salte, Ivar Mjåland; Dalen, Håvard; Lovstakken, Lasse. (2021) Real-time temporal coherent left ventricle segmentation using convolutional LSTMs. Proceedings - IEEE Ultrasonics Symposium
Academic article
Smistad, Erik; Steinsland, Erik Nikolai; LÃ¸vstakken, Lasse. (2021) Real-time 3D left ventricle segmentation and ejection fraction using deep learning. Proceedings - IEEE Ultrasonics Symposium
Academic article
Smistad, Erik; Ãstvik, Andreas; LÃ¸vstakken, Lasse. (2021) Annotation Web - An open-source web-based annotation tool for ultrasound images. Proceedings - IEEE Ultrasonics Symposium
Academic article
Viggen, Erlend Magnus; Løvstakken, Lasse; Merciu, Ioan Alexandru; Måsøy, Svein-Erik. (2021) Better Automatic Interpretation of Cement Evaluation Logs through Feature Engineering. Society of Petroleum Engineers
Academic chapter/article/Conference paper
Viggen, Erlend Magnus; Løvstakken, Lasse; Måsøy, Svein-Erik; Merciu, Ioan Alexandru. (2021) Better Automatic Interpretation of Cement Evaluation Logs through Feature Engineering. SPE Journal
Academic article
Daae, Annichen Søyland; Wigen, Morten Smedsrud; Fadnes, Solveig; Løvstakken, Lasse; Støylen, Asbjørn. (2021) Intraventricular Vector Flow Imaging with Blood Speckle Tracking in Adults: Feasibility, Normal Physiology and Mechanisms in Healthy Volunteers. Ultrasound in Medicine and Biology
Academic article
Mawad, Wadi; Løvstakken, Lasse; Fadnes, Solveig; Grønli, Thomas; Segers, Patrick; Mertens, Luc. (2021) Right Ventricular Flow Dynamics in Dilated Right Ventricles: Energy Loss Estimation Based on Blood Speckle Tracking Echocardiography-A Pilot Study in Children. Ultrasound in Medicine and Biology
Academic article
Henry, Matthew; Fadnes, Solveig; Løvstakken, Lasse; Mawad, Wadi; Mertens, Luc; Nyrnes, Siri Ann. (2021) Bicuspid aortic valve flow dynamics using blood speckle tracking in children . European Heart Journal-Cardiovascular Imaging
Abstract

2020

Smistad, Erik; Østvik, Andreas; Salte, Ivar Mjåland; Melichova, Daniela; Nguyen, Thuy Mi; Haugaa, Kristina. (2020) Real-Time Automatic Ejection Fraction and Foreshortening Detection Using Deep Learning. IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control
Academic article
Salles, Sebastien; Espeland, Torvald; Rodriguez-Molares, Alfonso; Aase, Svein Arne; Hammer, Tommy; Støylen, Asbjørn. (2020) 3D Myocardial Mechanical Wave Measurements: Toward In Vivo 3D Myocardial Elasticity Mapping. JACC Cardiovascular Imaging
Academic article
Leclerc, Sarah; Smistad, Erik; Østvik, Andreas; Cervenansky, Frederic; Espinosa, Florian; Espeland, Torvald. (2020) LU-Net: A Multistage Attention Network to Improve the Robustness of Segmentation of Left Ventricular Structures in 2-D Echocardiography. IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control
Academic article
Sengupta, Partho P.; Shrestha, Sirish; Berthon, Béatrice; Messas, Emmanuel; Donal, Erwan; Tison, Geoffrey H.. (2020) Proposed Requirements for Cardiovascular Imaging-Related Machine Learning Evaluation (PRIME): A Checklist: Reviewed by the American College of Cardiology Healthcare Innovation Council. JACC Cardiovascular Imaging
Academic literature review
Mawad, Wadi; Fadnes, Solveig; Grønli, Thomas; Løvstakken, Lasse; Mertens, Luc; Nyrnes, Siri Ann. (2020) Children with Pulmonary Hypertension Have Abnormal Flow patterns in the Main Pulmonary Artery as Shown By High Frame Rate Ultrasound Imaging. Journal of the American Society of Echocardiography
Abstract
Salles, Sebastien; Kvåle, Kaja Frøysaa; Lervik, Lars Christian Naterstad; Støylen, Asbjørn; Løvstakken, Lasse; Samset, Eigil. (2020) Detection of Tissue Fibrosis using Natural Mechanical Wave Velocity Estimation: Feasibility Study. Ultrasound in Medicine and Biology
Academic article
Ramalli, Alessandro; Rodriguez-Molares, Alfonso; Avdal, Jørgen; D'Hooge, Jan R M; Løvstakken, Lasse. (2020) High-Frame-Rate Color Doppler Echocardiography: A Quantitative Comparison of Different Approaches. IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control
Academic article
Nyrnes, Siri Ann; Fadnes, Solveig; Wigen, Morten Smedsrud; Mertens, Luc; Løvstakken, Lasse. (2020) Blood Speckle-Tracking Based on High–Frame Rate Ultrasound Imaging in Pediatric Cardiology. Journal of the American Society of Echocardiography
Academic article
Viggen, Erlend Magnus; Merciu, Ioan Alexandru; Løvstakken, Lasse; Måsøy, Svein-Erik. (2020) Automatic interpretation of cement evaluation logs from cased boreholes using supervised deep neural networks. Journal of Petroleum Science and Engineering
Academic article
Fadnes, Solveig; Sørensen, Kristian; Nyrnes, Siri Ann; Wigen, Morten Smedsrud; Løvstakken, Lasse. (2020) Intraventricular Pressure Gradients - Vector Flow Imaging versus Color M-Mode. Proceedings - IEEE Ultrasonics Symposium
Academic article
Perrot, Vincent; Ekroll, Ingvild Kinn; Avdal, Jørgen; Saxhaug, Lars Mølgaard; Dalen, Håvard; Vray, Didier. (2020) Translation of Simultaneous Vessel Wall Motion and Vectorial Blood Flow Imaging in Healthy and Diseased Carotids to the Clinic: A pilot study. IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control
Academic article
Golfetto, Cristiana; Ekroll, Ingvild Kinn; Torp, Hans; Løvstakken, Lasse; Avdal, Jørgen. (2020) Retrospective Transmit beamforming and Coherent Plane-Wave Compounding for Microvascular Doppler Imaging: A Comparison Study. IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control
Academic article
Sørensen, Kristian; Fadnes, Solveig; Wigen, Morten Smedsrud; Salvesen, Øyvind; Mertens, Luc; Løvstakken, Lasse. (2020) Assessment of Diastolic Intraventricular Pressure Gradients in Children by Blood Speckle Tracking. A Feasibility Study. Journal of the American Society of Echocardiography
Abstract

2019

Leclerc, Sarah; Smistad, Erik; Pedrosa, Joao; Østvik, Andreas; Cervenansky, Frederic; Espinosa, Florian. (2019) Deep Learning for Segmentation using an Open Large-Scale Dataset in 2D Echocardiography. IEEE Transactions on Medical Imaging
Academic article
Tannvik, Tomas Dybos; Rimehaug, Audun Eskeland; Wigen, Morten Smedsrud; Løvstakken, Lasse; Kirkeby-Garstad, Idar. (2019) Ventriculo-arterial interaction may be assessed by Oscillatory Power Fraction. Clinical Physiology and Functional Imaging
Academic article
Wigen, Morten Smedsrud; Løvstakken, Lasse; Fadnes, Solveig; Torp, Hans. (2019) 4D ultrasound vector flow imaging for intraventricular flow assessment. NTNU
Doctoral dissertation
Aakervik, Anne-Lise; Løvstakken, Lasse; Torp, Hans; Aakhus, Svend. (2019) Lydbølger som er viktig for helsa. Gemini
Popular scientific article
Salles, Sebastien; Løvstakken, Lasse; Aase, Svein Arne; Bjåstad, Tore Grüner; Torp, Hans. (2019) Clutter Filter Wave Imaging. IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control
Academic article
Leclerc, Sarah; Smistad, Erik; Grenier, Thomas; Lartizien, Carole; Østvik, Andreas; Cervenansky, Frederic. (2019) RU-Net: A refining segmentation network for 2D echocardiography. Proceedings - IEEE Ultrasonics Symposium
Academic article
Ramalli, Alessandro; Rodriguez-Molares, Alfonso; Avdal, Jørgen; D'Hooge, Jan; Løvstakken, Lasse. (2019) High frame rate color flow echocardiography: A comparison of different imaging approaches. Journal of the Acoustical Society of America
Academic article
Smistad, Erik; Salte, Ivar Mjåland; Østvik, Andreas; Leclerc, Sarah; Bernard, Olivier; Løvstakken, Lasse. (2019) Segmentation of apical long axis, four- and two-chamber views using deep neural networks. Proceedings - IEEE Ultrasonics Symposium
Academic article
Ramalli, Alessandro; D'Hooge, Jan; Løvstakken, Lasse; Tortoli, Piero. (2019) A Direct Measurement of Inter-Element Cross-Talk in Ultrasound Arrays. Proceedings - IEEE Ultrasonics Symposium
Academic article
Karabiyik, Yücel; Avdal, Jørgen; Ekroll, Ingvild Kinn; Fiorentini, Stefano; Torp, Hans; Løvstakken, Lasse. (2019) Data Adaptive 2-D Tracking Doppler for High-Resolution Spectral Estimation. IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control
Academic article

2018

Fiorito, Adrian Meidell; Østvik, Andreas; Smistad, Erik; Leclerc, Sarah; Bernard, Olivier; Løvstakken, Lasse. (2018) Detection of Cardiac Events in Echocardiography using 3D Convolutional Recurrent Neural Networks. Proceedings - IEEE Ultrasonics Symposium
Academic article
Dietrichson, Fabian Sødal; Smistad, Erik; Østvik, Andreas; Løvstakken, Lasse. (2018) Ultrasound speckle reduction using generative adversial networks. Proceedings - IEEE Ultrasonics Symposium
Academic article
Smistad, Erik; Østvik, Andreas; Salte, Ivar Mjåland; Leclerc, Sarah; Bernard, Olivier; Løvstakken, Lasse. (2018) Fully automatic real-time ejection fraction and MAPSE measurements in 2D echocardiography using deep neural networks. Proceedings - IEEE Ultrasonics Symposium
Academic article
Leclerc, Sarah; Smistad, Erik; Grenier, Thomas; Lartizien, Carole; Østvik, Andreas; Espinosa, Florian. (2018) Deep learning applied to multi-structure segmentation in 2D echocardiography: A preliminary investigation of the required database size. Proceedings - IEEE Ultrasonics Symposium
Academic article
Perrot, Vincent; Avdal, Jørgen; Løvstakken, Lasse; Salles, Sebastien; Vray, Didier; Liebgott, Herve. (2018) Spatial and temporal adaptive FIR clutter filtering. Proceedings - IEEE Ultrasonics Symposium
Academic article
Grønli, Thomas; Wigen, Morten Smedsrud; Segers, Patrick; Løvstakken, Lasse. (2018) A fast 4D B-spline framework for model-based reconstruction and regularization in vector flow imaging. Proceedings - IEEE Ultrasonics Symposium
Academic article
Østvik, Andreas; Smistad, Erik; Aase, Svein Arne; Haugen, Bjørn Olav; Løvstakken, Lasse. (2018) Real-time Standard View Classification in Transthoracic Echocardiography using Convolutional Neural Networks. Ultrasound in Medicine and Biology
Academic article
Østvik, Andreas; Smistad, Erik; Espeland, Torvald; Berg, Erik Andreas Rye; Løvstakken, Lasse. (2018) Automatic Myocardial Strain Imaging in Echocardiography Using Deep Learning. Lecture Notes in Computer Science (LNCS)
Academic article
Wigen, Morten Smedsrud; Fadnes, Solveig; Rodriguez-Molares, Alfonso; Bjåstad, Tore Grüner; Eriksen, Marius; STENSÆTH, KNUT HAAKON. (2018) 4-D Intracardiac Ultrasound Vector Flow Imaging-Feasibility and Comparison to Phase-Contrast MRI. IEEE Transactions on Medical Imaging
Academic article
Karabiyik, Yücel; Ekroll, Ingvild Kinn; Eik-Nes, Sturla; Løvstakken, Lasse. (2018) Quantitative Doppler analysis using conventional color flow imaging acquisitions. IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control
Academic article
Iversen, Daniel Høyer; Løvstakken, Lasse; Unsgård, Geirmund; Reinertsen, Ingerid. (2018) Automatic intraoperative estimation of blood flow direction during neurosurgical interventions. International Journal of Computer Assisted Radiology and Surgery
Academic article

2017

Østvik, Andreas; Smistad, Erik; Aase, Svein Arne; Haugen, Bjørn Olav; Løvstakken, Lasse. (2017) Real-time classification of standard cardiac views in echocardiography using neural networks. Proceedings - IEEE Ultrasonics Symposium
Abstract
Rodriguez-Molares, Alfonso; Rindal, Ole Marius Hoel; Bernard, Olivier; Nair, Arun; Bell, Muyinatu A. Lediju; Liebgott, Herve. (2017) The UltraSound ToolBox. Proceedings - IEEE Ultrasonics Symposium
Academic article
Rodriguez-Molares, Alfonso; Fatemi, Ali; Løvstakken, Lasse; Torp, Hans. (2017) Specular Beamforming. IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control
Academic article
Avdal, Jørgen; Løvstakken, Lasse; Torp, Hans; Ekroll, Ingvild Kinn. (2017) Combined 2-D Vector imaging and Tracking Doppler for improved vascular blood velocity quantification. IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control
Academic article
Rodriguez-Molares, Alfonso; Torp, Hans; Lippe, Boris; Løvstakken, Lasse. (2017) Sequential CPWC: from ultrafast to ultralight. Proceedings of SPIE, the International Society for Optical Engineering
Academic article
Fadnes, Solveig; Wigen, Morten Smedsrud; Nyrnes, Siri Ann; Løvstakken, Lasse. (2017) In vivo intracardiac vector flow imaging using phased array transducers for pediatric cardiology. IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control
Academic article
Mawad, Wadi; Løvstakken, Lasse; Fadnes, Solveig; Mertens, Luc; Nyrnes, Siri Ann. (2017) Right ventricular flow dynamics in dilated right ventricles. Energy loss estimation based on blood speckle tracking echocardiography in children. Journal of the American Society of Echocardiography
Abstract
Santos, Pedro; Løvstakken, Lasse; Samset, Eigil; D'Hooge, Jan. (2017) Volumetric imaging of fast mechanical waves in the heart using a clinical ultrasound system. Proceedings - IEEE Ultrasonics Symposium
Academic article
Salles, Sebastien; Rodriguez-Molares, Alfonso; Støylen, Asbjørn; Bjåstad, Tore Grüner; Aase, Svein Arne; Løvstakken, Lasse. (2017) 3D myocardial mechanical wave measurements using high frame rate ultrasound imaging and Clutter filter wave imaging: Towards a 3D myocardial elasticity mapping. Proceedings - IEEE Ultrasonics Symposium
Abstract
Salles, Sebastien; Aase, Svein Arne; Bjåstad, Tore Grüner; Løvstakken, Lasse; Torp, Hans. (2017) Clutter filter wave imaging (CFWI): A new way to visualize and detect mechanical waves propagation. Proceedings - IEEE Ultrasonics Symposium
Abstract
Fadnes, Solveig; Tegnander, Eva; Nyrnes, Siri Ann; Løvstakken, Lasse. (2017) Vector Flow Imaging of Fetal Circulation using Diverging Waves. Proceedings - IEEE Ultrasonics Symposium
Abstract
Wigen, Morten Smedsrud; Rodriguez-Molares, Alfonso; Bjåstad, Tore Grüner; Eriksen, Marius; STENSÆTH, KNUT HAAKON; Løvstakken, Lasse. (2017) In-vivo 3D cardiac vector flow imaging - A comparison between ultrasound and phase-contrast MRI. Proceedings - IEEE Ultrasonics Symposium
Abstract
Grønli, Thomas; Swillens, Abigail Emily; Segers, Patrick; Løvstakken, Lasse. (2017) Real-time assimilation and regularization of ultrasound blood velocity measurements using smoothed particle hydrodynamics. Proceedings - IEEE Ultrasonics Symposium
Abstract
Smistad, Erik; Østvik, Andreas; Haugen, Bjørn Olav; Løvstakken, Lasse. (2017) 2D left ventricle segmentation using deep learning. Proceedings - IEEE Ultrasonics Symposium
Academic article
Karabiyik, Yucel; Løvstakken, Lasse; Ekroll, Ingvild Kinn; Torp, Hans; Eik-Nes, Sturla. (2017) Quantitative Doppler analysis using color flow imaging and adaptive signal processing. Doktoravhandlinger ved NTNU (227)
Doctoral dissertation

2016

Høgenes, Jakob; Wigen, Morten Smedsrud; Nyrnes, Siri Ann; Segers, P.; Swillens, Abigail; Løvstakken, Lasse. (2016) Model-based estimation of intra-cardiac blood flow velocities using an unscented Kalman filter. Proceedings - IEEE Ultrasonics Symposium
Academic article
Rimehaug, Audun Eskeland; Skogvoll, Eirik; Aadahl, Petter; Lyng, Oddveig; Nordhaug, Dag Ole; Løvstakken, Lasse. (2016) Minimally invasive beat-by-beat monitoring of cardiac power in normal hearts and during acute ventricular dysfunction. Physiological Reports
Academic article
Avdal, Jørgen; Ekroll, Ingvild Kinn; Løvstakken, Lasse; Torp, Hans. (2016) Combined 2-D vector and tracking Doppler imaging for improved blood velocity quantification. Proceedings - IEEE Ultrasonics Symposium
Academic article
Karabiyik, Yucel; Avdal, Jørgen; Ekroll, Ingvild Kinn; Torp, Hans; Løvstakken, Lasse. (2016) Data adaptive 2-D tracking Doppler. Proceedings - IEEE Ultrasonics Symposium
Academic article
Karabiyik, Yucel; Ekroll, Ingvild Kinn; Eik-Nes, Sturla; Avdal, Jørgen; Løvstakken, Lasse. (2016) Adaptive Spectral Estimation Methods in Color Flow Imaging. IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control
Academic article
Van Cauwenberge, Joris; Løvstakken, Lasse; Fadnes, Solveig; Rodriguez-Molares, Alfonso; Vierendeels, Jan; Segers, Patrick. (2016) Assessing the Performance of Ultrafast Vector Flow Imaging in the Neonatal Heart via Multiphysics Modeling and in Vitro Experiments. IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control
Academic article
Rodriguez-Molares, Alfonso; Avdal, Jørgen; Torp, Hans; Løvstakken, Lasse. (2016) Axial lobes in coherent plane-wave compounding. Proceedings - IEEE Ultrasonics Symposium
Academic article
Wigen, Morten Smedsrud; Løvstakken, Lasse. (2016) In vivo three-dimensional intra-cardiac vector flow imaging using a 2D matrix array transducer. Proceedings - IEEE Ultrasonics Symposium
Academic article
Rodriguez-Molares, Alfonso; Fatemi, Seyed Ali Mohammad; Torp, Hans; Løvstakken, Lasse. (2016) Adaptive beamforming based on Snell's law of reflection. Proceedings - IEEE Ultrasonics Symposium
Academic article
Santos, Pedro; Haugen, Geir Ultveit; Løvstakken, Lasse; Samset, Eigil; D'hooge, Jan R M. (2016) Diverging Wave Volumetric Imaging Using Subaperture Beamforming. IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control
Academic article
Santos, Pedro; Haugen, Geir Ultveit; Løvstakken, Lasse; Samset, Eigil; D'Hooge, Jan. (2016) High frame rate 3D tissue velocity imaging using sub-aperture beamforming: A pilot study in vivo. Proceedings - IEEE Ultrasonics Symposium
Academic article
Smistad, Erik; Løvstakken, Lasse. (2016) Vessel detection in ultrasound images using deep convolutional neural networks. Lecture Notes in Computer Science (LNCS)
Academic article
Grønli, Thomas; Smistad, Erik; Nyrnes, Siri Ann; Gomez, Alberto; Løvstakken, Lasse. (2016) Reconstruction of In Vivo Flow Velocity Fields Based On a Rapid Ultrasound Image Segmentation and B-spline Regularization Framework. Proceedings - IEEE Ultrasonics Symposium
Academic article
Fadnes, Solveig; Nyrnes, Siri Ann; Wigen, Morten Smedsrud; Tegnander, Eva; Løvstakken, Lasse. (2016) Detailed flow visualization in fetal and neonatal hearts using 2-D speckle tracking. Proceedings - IEEE Ultrasonics Symposium
Academic article
Ekroll, Ingvild Kinn; Avdal, Jørgen; Swillens, Abigail Emily; Torp, Hans; Løvstakken, Lasse. (2016) An Extended Least Squares Method for Aliasing-Resistant Vector Velocity Estimation. IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control
Academic article

2015

Santos, Pedro; Tong, Ling; Ortega, Alejandra; Løvstakken, Lasse; Samset, Eigil; D'hooge, Jan R M. (2015) Acoustic output of multi-line transmit beamforming for fast cardiac imaging: A simulation study. IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control
Academic article
Iversen, Daniel Høyer; Lindseth, Frank; Unsgård, Geirmund; Torp, Hans; Løvstakken, Lasse. (2015) Improved quality of freehand 3-D ultrasound color flow imaging by multi-angle compounding. Proceedings - IEEE Ultrasonics Symposium
Academic article
Ekroll, Ingvild Kinn; Voormolen, Marco Marien; Standal, Øyvind Krøvel-Velle; Rau, Jochen; Løvstakken, Lasse. (2015) Coherent compounding in doppler imaging. IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control
Academic article
Rodriguez-Molares, Alfonso; Løvstakken, Lasse; Ekroll, Ingvild Kinn; Torp, Hans. (2015) Reconstruction of specular reflectors by iterative image source localization. Journal of the Acoustical Society of America
Academic article
Fadnes, Solveig; Bjærum, Steinar; Torp, Hans; Løvstakken, Lasse. (2015) Clutter filtering influence on blood velocity estimation using speckle tracking. IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control
Academic article
Fadnes, Solveig; Ekroll, Ingvild Kinn; Nyrnes, Siri Ann; Torp, Hans; Løvstakken, Lasse. (2015) Robust angle-independent blood velocity estimation based on dual-angle plane wave imaging. IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control
Academic article
Rodriguez-Molares, Alfonso; Løvstakken, Lasse; Ekroll, Ingvild Kinn; Torp, Hans. (2015) Needle detection by image source localization . Proceedings - IEEE Ultrasonics Symposium
Academic article
Torp, Hans; Rodriguez-Molares, Alfonso; Løvstakken, Lasse. (2015) Optimum beamformer strategy for detecting signals in clutter noise . Proceedings - IEEE Ultrasonics Symposium
Academic article
Rodriguez-Molares, Alfonso; Løvstakken, Lasse; Torp, Hans; Martin-Herrero, Julio; Bjåstad, Tore Grüner. (2015) Detection of the Intima-Lumen interface by coherent combination of RF scanlines . Proceedings - IEEE Ultrasonics Symposium
Academic article
Rodriguez-Molares, Alfonso; Torp, Hans; Denarie, Bastien; Løvstakken, Lasse. (2015) The angular apodization in coherent plane-wave compounding. IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control
Academic article
Nyrnes, Siri Ann; Løvstakken, Lasse. (2015) Flow speckle tracking provides new information of complex blood flow in congenital heart disease. Cardiology in the Young
Abstract
Avdal, Jørgen; Løvstakken, Lasse; Torp, Hans. (2015) Effects of reverberations and clutter filtering in pulsed Doppler using sparse sequences. IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control
Academic article

2014

Løvstakken, Lasse. (2014) 3D ultralydbilder av blodstrøm kan gi bedre forståelse av hjertesykdom.
Website (informational material)
Fadnes, Solveig; Nyrnes, Siri Ann; Torp, Hans; Løvstakken, Lasse. (2014) Shunt flow evaluation in congenital heart disease based on two-dimensional speckle tracking. Ultrasound in Medicine and Biology
Academic article
Fredriksen, Tonje Dobrowen; Avdal, Jørgen; Ekroll, Ingvild Kinn; Dahl, Torbjørn; Løvstakken, Lasse; Torp, Hans. (2014) Investigations of spectral resolution and angle dependency in a 2-D tracking doppler method. IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control
Academic article
Iversen, Daniel Høyer; Løvstakken, Lasse; Lindseth, Frank; Torp, Hans. (2014) Improved methods for navigated 3-D vascular ultrasound imaging. Doktoravhandlinger ved NTNU (190)
Doctoral dissertation
Santos, Pedro; Tong, Ling; Ortega, Alejandra; Løvstakken, Lasse; Samset, Eigil; D'hooge, Jan R M. (2014) Safety of Multi-Line Transmit beam forming for fast cardiac imaging - A simulation study. IEEE International Ultrasonics Symposium Proceedings
Academic article
Swillens, Abigail; Shcherbakova, Darya; Trachet, Bram; Segers, Patrick; Ekroll, Ingvild Kinn; Løvstakken, Lasse. (2014) A multi-angle plane wave imaging approach for high frequency 2D flow visualization in small animals: Simulation study in the murine arterial system. IEEE International Ultrasonics Symposium Proceedings
Academic article
Avdal, Jørgen; Ekroll, Ingvild Kinn; Fadnes, Solveig; Løvstakken, Lasse; Torp, Hans. (2014) 2D tracking doppler for cardiac jet flow velocity estimation. IEEE International Ultrasonics Symposium Proceedings
Academic article
Nyrnes, Siri Ann; Løvstakken, Lasse; Døhlen, Gaute; Skogvoll, Eirik; Torp, Hans; Skjærpe, Terje. (2014) Blood Flow Imaging in Transesophageal Echocardiography during Atrial Septal Defect Closure: A Comparison with the Current References. Echocardiography
Academic article
Fadnes, Solveig; Ekroll, Ingvild Kinn; Nyrnes, Siri Ann; Torp, Hans; Løvstakken, Lasse. (2014) Robust angle-independent blood velocity estimation based on multi-angle speckle tracking and vector Doppler. IEEE International Ultrasonics Symposium Proceedings
Academic article
Ekroll, Ingvild Kinn; Voormolen, Marco Marien; Standal, Øyvind Krøvel-Velle; Rau, Jochen; Løvstakken, Lasse. (2014) On the accuracy of coherent compounding Doppler imaging. IEEE International Ultrasonics Symposium Proceedings
Academic article
Angelelli, Paolo; Snare, Sten Roar; Nyrnes, Siri Ann; Bruckner, Stefan; Hauser, Helwig; Løvstakken, Lasse. (2014) Live ultrasound-based particle visualization of blood flow in the heart. Spring conference on Computer graphics
Academic article
Kiss, Gabriel; Iversen, Daniel Høyer; Standal, Øyvind Krøvel-Velle; Rau, Jochen; Torp, Hans; Løvstakken, Lasse. (2014) A visualization tool for improved assessment and follow-up with ultrasound. IEEE International Ultrasonics Symposium Proceedings
Academic article
Fadnes, Solveig; Løvstakken, Lasse. (2014) Two-Dimensional Blood Velocity Estimation for Intracardiac Flow Assessment. Doktoravhandlinger ved NTNU (260)
Doctoral dissertation
Nyrnes, Siri Ann; Løvstakken, Lasse; Torp, Hans; Haugen, Bjørn Olav. (2014) New ultrasound flow modalities for evaluation of congenital heart defects. Doktoravhandlinger ved NTNU (275)
Doctoral dissertation
Ekroll, Ingvild Kinn; Dahl, Torbjørn; Torp, Hans; Løvstakken, Lasse. (2014) Combined vector velocity and spectral doppler imaging for improved imaging of complex blood flow in the carotid arteries. Ultrasound in Medicine and Biology
Academic article
Johnsen, Ingvild Bjellmo; Løvstakken, Lasse; Åsvold, Bjørn Olav; Høydal, Morten; Sætrom, Pål; Bonnevie, Tora. (2014) NTNUs stjerneforskere. Adresseavisen
Interview Journal

2013

Rimehaug, Audun Eskeland; Lyng, Oddveig; Nordhaug, Dag Ole; Løvstakken, Lasse; Aadahl, Petter; Kirkeby-Garstad, Idar. (2013) Cardiac power integral: a new method for monitoring cardiovascular performance. Physiological Reports
Academic article
Iversen, Daniel Høyer; Lindseth, Frank; Unsgård, Geirmund; Torp, Hans; Løvstakken, Lasse. (2013) Model-Based Correction of Velocity Measurements in Navigated 3-D Ultrasound Imaging During Neurosurgical Interventions. IEEE Transactions on Medical Imaging
Academic article
Fredriksen, Tonje Dobrowen; Ekroll, Ingvild Kinn; Løvstakken, Lasse; Torp, Hans. (2013) 2-D Tracking Doppler: A New Method to Limit Spectral Broadening in Pulsed Wave Doppler. IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control
Academic article
Ekroll, Ingvild Kinn; Swillens, Abigail; Segers, Patrick; Dahl, Torbjørn; Torp, Hans; Løvstakken, Lasse. (2013) Simultaneous Quantification of Flow and Tissue Velocities Based on Multi-Angle Plane Wave Imaging. IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control
Academic article
Van Canneyt, K.; Swillens, Abigail; Løvstakken, Lasse; Antiga, L; Verdonck, P.; Segers, Patrick. (2013) The accuracy of ultrasound volume flow measurements in the complex flow setting of a forearm vascular access. Journal of Vascular Access
Academic article
Nyrnes, Siri Ann; Løvstakken, Lasse; Døhlen, Gaute; Skogvoll, Eirik; Torp, Hans; Skjærpe, Terje. (2013) Transesophageal echocardiography with Blood Flow Imaging during Atrial Septal defect closure: A comparison with the current references. Cardiology in the Young
Abstract
Denarie, Bastien; Tangen, Thor Andreas; Ekroll, Ingvild Kinn; Rolim, Natale Pinheiro Lage; Torp, Hans; Bjåstad, Tore. (2013) Coherent Plane Wave Compounding for Very High Frame Rate Ultrasonography of Rapidly Moving Targets. IEEE Transactions on Medical Imaging
Academic article

2012

Swillens, Abigail Emily; De Santis, G.; Degroote, Joris; Løvstakken, Lasse; Vierendeels, Jan; Segers, Patrick. (2012) Accuracy of carotid strain estimates from ultrasonic wall tracking: a study based on multiphysics simulations and in vivo data. IEEE Transactions on Medical Imaging
Academic article
Løvstakken, Lasse; Nyrnes, Siri Ann; Haugen, Bjørn Olav; Torp, Hans. (2012) Angle-independent quantification of complex flow patterns in congenital heart disease. IEEE International Ultrasonics Symposium Proceedings
Academic article
Ekroll, Ingvild Kinn; Torp, Hans; Løvstakken, Lasse. (2012) Spectral Doppler Estimation Utilizing 2-D Spatial Information and Adaptive Signal Processing. IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control
Academic article
Swillens, Abigail; De Witte, Marloes; Nordgaard, Håvard B.; Løvstakken, Lasse; Van Loo, D.; Trachet, Bram. (2012) Effect of the degree of LAD stenosis on "competitive flow" and flow field characteristics in LIMA-to-LAD bypass surgery. Medical and Biological Engineering and Computing
Academic article
Iversen, Daniel Høyer; Lindseth, Frank; Torp, Hans; Løvstakken, Lasse. (2012) Model-based correction of angle-dependencies in navigated 3-D flow imaging during neurosurgical interventions. IEEE International Ultrasonics Symposium Proceedings
Abstract
Fredriksen, Tonje Dobrowen; Ekroll, Ingvild Kinn; Løvstakken, Lasse; Torp, Hans. (2012) 2D Tracking Doppler: A New Method to Limit Spectral Broadening in Pulsed Wave Doppler. Proceedings - IEEE Ultrasonics Symposium
Academic article
Fadnes, Solveig; Nyrnes, Siri Ann; Swillens, Abigail; Torp, Hans; Løvstakken, Lasse. (2012) Shunt quantification in congenital heart disease based on two-dimensional speckle tracking. Proceedings - IEEE Ultrasonics Symposium
Academic article
Nyrnes, Siri Ann; Løvstakken, Lasse. (2012) Raskere og sikrere diagnose. Hjertebarnet
Article in business/trade/industry journal
Ekroll, Ingvild Kinn; Dahl, Torbjørn; Torp, Hans; Løvstakken, Lasse. (2012) In vivo Vector Flow Imaing With Retrospective Pulsed Wave Doppler. Proceedings - IEEE Ultrasonics Symposium
Academic article
Iversen, Daniel Høyer; Lindseth, Frank; Torp, Hans; Løvstakken, Lasse. (2012) Improved 3-D reconstruction of vascular flow based on plane wave imaging. IEEE International Ultrasonics Symposium Proceedings
Academic article

2008

Nyrnes, Siri Ann; Løvstakken, Lasse; Torp, Hans; Haugen, Bjørn Olav. (2008) The coronary arteries visualised by a new ultrasound flow modality. European Heart Journal-Cardiovascular Imaging
Abstract
Nyrnes, Siri Ann; Løvstakken, Lasse. (2008) Ny ultralydmetode hjelper barn. VG : Verdens gang
Interview Journal
Nyrnes, Siri Ann; Løvstakken, Lasse. (2008) Ny norsk ultralyd. ComputerWorld Norge
Interview Journal
Frijlink, Martijn Egbert; Løvstakken, Lasse; Torp, Hans. (2008) Fundamental and Third Harmonic Operation of a Medical Phased Array Transducer. IEEE International Ultrasonics Symposium Proceedings
Academic article
Swillens, Abigail; Løvstakken, Lasse; Torp, Hans; Segers, Patrick. (2008) A comparison of multidimensional flow estimation techniques using computational fluid dynamics: speckle tracking versus vector Doppler. IEEE International Ultrasonics Symposium Proceedings
Academic article
Løvstakken, Lasse; Ibrahim, Khalid Shaker Oklah; Vitale, Nicola; Henriksen, Siren T.; Kirkeby-Garstad, Idar; Torp, Hans. (2008) Blood Flow Imaging: A New Two-dimensional Ultrasound Modality for Enhanced Intraoperative Visualization of Blood Flow Patterns in Coronary Anastomoses. Journal of the American Society of Echocardiography
Academic article
Nyrnes, Siri Ann; Løvstakken, Lasse. (2008) Ny ultralydmetode gir bedre blodstrømsbilder. Dagens medisin
Article in business/trade/industry journal
Oddershede, Niels; Løvstakken, Lasse; Torp, Hans; Jensen, Jørgen A.. (2008) Estimating 2-D vector velocities using multidimensional spectrum analysis. IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control
Academic article

2007

Nyrnes, Siri Ann; Løvstakken, Lasse; Torp, Hans; Haugen, Bjørn Olav. (2007) A new ultrasound modality to visualise atrial septal defect flow in children. European Heart Journal-Cardiovascular Imaging
Abstract
Løvstakken, Lasse. (2007) Signal processing in diagnostic ultrasound: Algorithms for real-time estimation and visualization of blood flow velocity. NTNU, Det medisinske fakultet
Doctoral dissertation
Løvstakken, Lasse; Bjærum, Steinar; Torp, Hans. (2007) Optimal velocity estimation in ultrasound Color Flow Imaging in presence of clutter. IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control
Academic article
Khalid, Ibrahim; Løvstakken, Lasse; Kirkeby-Garstad, Idar; Torp, Hans; Vik-Mo, Harald; Haaverstad, Rune. (2007) Effect of the Cardiac Cycle on the Coronary Anastomosis Assessed by Ultrasound. Asian Cardiovascular and Thoracic Annals
Academic article
Oddershede, Niels; Løvstakken, Lasse; Torp, Hans; Jensen, Jørgen A.. (2007) Multi-dimensional spectrum analysis for 2-D vector velocity estimation. IEEE International Ultrasonics Symposium Proceedings
Academic article
Løvstakken, Lasse; Orderud, Fredrik; Torp, Hans. (2007) Real-time Indication of Acoustic Window for Phased-Array Transducers in Ultrasound Imaging. IEEE International Ultrasonics Symposium Proceedings
Academic article
Nyrnes, Siri Ann; Løvstakken, Lasse; Torp, Hans; Haugen, Bjørn Olav. (2007) Blood Flow Imaging - A New Angle-Independent Ultrasound Modality for the Visualization of Flow in Atrial Septal Defects in Children. Echocardiography
Academic article
Løvstakken, Lasse; Yu, Alfred C. H.; Torp, Hans. (2007) P6B-3 In Vivo Investigation of Filter order Influence in Eigen-based Clutter Filtering for Color Flow Imaging. IEEE International Ultrasonics Symposium Proceedings
Academic article
Yu, Alfred C. H.; Løvstakken, Lasse. (2007) Eigen-Based Clutter Filters for Color Flow Imaging: Single-Ensemble vs. Multi-Ensemble Approaches. IEEE International Ultrasonics Symposium Proceedings
Academic article

2006

Løvstakken, Lasse; Bjærum, Steinar; Kristoffersen, K; Haaverstad, Rune; Torp, Hans. (2006) Real-time adaptive clutter rejection filtering in color flow imaging using power method iterations. IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control
Academic article
Løvstakken, Lasse; Tangen, Thor Andreas; Bjærum, Steinar; Torp, Hans. (2006) Optimal velocity estimation in ultrasound Color Flow Imaging in presence of clutter noise. IEEE International Ultrasonics Symposium Proceedings
Academic article
Løvstakken, Lasse; Bjærum, Steinar; Martens, Ditlef; Torp, Hans. (2006) Blood flow imaging - A new real-time, 2-D flow imaging technique. IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control
Academic article

Tidsskriftspublikasjoner

van de Vyver, Gilles; Måsøy, Svein-Erik; Dalen, Håvard; Grenne, Bjørnar Leangen; Holte, Espen; Olaisen, Sindre Hellum. (2025) Regional Image Quality Scoring for 2-D Echocardiography Using Deep Learning. Ultrasound in Medicine and Biology
Academic article
Sørensen, Kristian; Fadnes, Solveig; Myklebust, Tor Åge; Løvstakken, Lasse; Mertens, Luc; Nyrnes, Siri Ann. (2025) Changes in left ventricular diastolic flow dynamics in the neonatal transition period and beyond. . American Journal of Physiology. Heart and Circulatory Physiology
Academic article
Sørensen, Kristian; Fadnes, Solveig; Mawad, Wadi; Henry, Matthew; Flade, Hans-Martin; Østvik, Andreas. (2025) Intraventricular Pressure Difference Estimation based on Blood Speckle Tracking - Invasive Validation and Early Clinical Application. European Heart Journal-Cardiovascular Imaging
Academic article
Nancy, Bazilchuk; Pasdeloup, David Francis Pierre; Dalen, Håvard; Løvstakken, Lasse; Måsøy, Svein-Erik. (2024) Kunstig intelligens hjelper til med å se hjertet ditt. Gemini
Popular scientific article
Garone, Rosa Virginia; Lønmo, Tor Inge Birkenes; Schimel, Alexandre; Diesing, Markus; Thorsnes, Terje; Løvstakken, Lasse. (2024) Corrigendum: Seabed classification of multibeam echosounder data into bedrock/non-bedrock using deep learning(Front. Earth Sci., (2023), 11, (1285368), 10.3389/feart.2023.1285368). Frontiers in Earth Science
Errata
Løvstakken, Lasse; Grenne, Bjørnar Leangen. (2024) The Road to Robust and Automated Strain Measurements in Echocardiography by Deep Learning. JACC Cardiovascular Imaging
Editorial
Nancy, Bazilchuk; Pasdeloup, David Francis Pierre; Dalen, Håvard; Løvstakken, Lasse; Måsøy, Svein-Erik. (2024) Peering into your heart – with the help of AI. Gemini (English edition)
Popular scientific article
Fermann, Benjamin Strandli; Nyberg, John; Remme, Espen; Grue, Jahn Frederik; Grue, Helén; Håland, Roger. (2024) Cardiac Valve Event Timing in Echocardiography Using Deep Learning and Triplane Recordings. IEEE Journal of Biomedical and Health Informatics
Academic article
Nyberg, John; Østvik, Andreas; Salte, Ivar Mjåland; Olaisen, Sindre Hellum; Karlsen, Sigve; Dahlslett, Thomas. (2024) Deep learning improves test–retest reproducibility of regional strain in echocardiography. European Heart Journal – Imaging Methods and Practice (EHJ-IMP)
Academic article
Yari, Yasin; Næve, Ingun; Hammerdal, Asle; Bergtun, Per Helge; Måsøy, Svein-Erik; Voormolen, Marco Marien. (2024) Automated Measurement of Ovary Development in Atlantic Salmon Using Deep Learning. Ultrasound in Medicine and Biology
Academic article
Chernyshov, Artem; Grue, Jahn Frederik; Nyberg, John; Grenne, Bjørnar Leangen; Dalen, Håvard; Aase, Svein Arne. (2024) Automated Segmentation and Quantification of the Right Ventricle in 2-D Echocardiography. Ultrasound in Medicine and Biology
Academic article
Indimath, Shivanandan; Wifstad, Sigurd Vangen; Bryon, Vincent; Bøklepp, Bjarne Rosvoll; Løvstakken, Lasse; Avdal, Jørgen. (2024) Subpixel segmentation of borehole fractures from low resolution Doppler ultrasound images using machine learning. Geoenergy Science and Engineering
Academic article
Wifstad, Sigurd Vangen; Kildahl, Henrik Agerup; Holte, Espen; Berg, Erik Andreas Rye; Grenne, Bjørnar Leangen; Salvesen, Øyvind Olav. (2024) EasyPISA: Automatic Integrated PISA Measurements of Mitral Regurgitation From 2-D Color-Doppler Using Deep Learning. Ultrasound in Medicine and Biology
Academic article
Wifstad, Sigurd Vangen; Kildahl, Henrik Agerup; Grenne, Bjørnar Leangen; Holte, Espen; Hauge, Ståle Wågen; Sæbø, Sigbjørn. (2024) Mitral Valve Segmentation and Tracking from Transthoracic Echocardiography Using Deep Learning. Ultrasound in Medicine and Biology
Academic article
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Abstract
Sørensen, Kristian; Fadnes, Solveig; Mertens, Luc; Henry, Matthew; Segers, Patrick; Løvstakken, Lasse. (2023) Assessment of Early Diastolic Intraventricular Pressure Difference in Children by Blood Speckle-Tracking Echocardiography. Journal of the American Society of Echocardiography
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Abstract
Smistad, Erik; Østvik, Andreas; Salte, Ivar Mjåland; Melichova, Daniela; Nguyen, Thuy Mi; Haugaa, Kristina. (2020) Real-Time Automatic Ejection Fraction and Foreshortening Detection Using Deep Learning. IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control
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Academic literature review
Mawad, Wadi; Fadnes, Solveig; Grønli, Thomas; Løvstakken, Lasse; Mertens, Luc; Nyrnes, Siri Ann. (2020) Children with Pulmonary Hypertension Have Abnormal Flow patterns in the Main Pulmonary Artery as Shown By High Frame Rate Ultrasound Imaging. Journal of the American Society of Echocardiography
Abstract
Salles, Sebastien; Kvåle, Kaja Frøysaa; Lervik, Lars Christian Naterstad; Støylen, Asbjørn; Løvstakken, Lasse; Samset, Eigil. (2020) Detection of Tissue Fibrosis using Natural Mechanical Wave Velocity Estimation: Feasibility Study. Ultrasound in Medicine and Biology
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Abstract
Leclerc, Sarah; Smistad, Erik; Pedrosa, Joao; Østvik, Andreas; Cervenansky, Frederic; Espinosa, Florian. (2019) Deep Learning for Segmentation using an Open Large-Scale Dataset in 2D Echocardiography. IEEE Transactions on Medical Imaging
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Abstract
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Abstract
Salles, Sebastien; Aase, Svein Arne; Bjåstad, Tore Grüner; Løvstakken, Lasse; Torp, Hans. (2017) Clutter filter wave imaging (CFWI): A new way to visualize and detect mechanical waves propagation. Proceedings - IEEE Ultrasonics Symposium
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Abstract
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Smistad, Erik; Løvstakken, Lasse. (2016) Vessel detection in ultrasound images using deep convolutional neural networks. Lecture Notes in Computer Science (LNCS)
Academic article
Grønli, Thomas; Smistad, Erik; Nyrnes, Siri Ann; Gomez, Alberto; Løvstakken, Lasse. (2016) Reconstruction of In Vivo Flow Velocity Fields Based On a Rapid Ultrasound Image Segmentation and B-spline Regularization Framework. Proceedings - IEEE Ultrasonics Symposium
Academic article
Fadnes, Solveig; Nyrnes, Siri Ann; Wigen, Morten Smedsrud; Tegnander, Eva; Løvstakken, Lasse. (2016) Detailed flow visualization in fetal and neonatal hearts using 2-D speckle tracking. Proceedings - IEEE Ultrasonics Symposium
Academic article
Ekroll, Ingvild Kinn; Avdal, Jørgen; Swillens, Abigail Emily; Torp, Hans; Løvstakken, Lasse. (2016) An Extended Least Squares Method for Aliasing-Resistant Vector Velocity Estimation. IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control
Academic article
Santos, Pedro; Tong, Ling; Ortega, Alejandra; Løvstakken, Lasse; Samset, Eigil; D'hooge, Jan R M. (2015) Acoustic output of multi-line transmit beamforming for fast cardiac imaging: A simulation study. IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control
Academic article
Iversen, Daniel Høyer; Lindseth, Frank; Unsgård, Geirmund; Torp, Hans; Løvstakken, Lasse. (2015) Improved quality of freehand 3-D ultrasound color flow imaging by multi-angle compounding. Proceedings - IEEE Ultrasonics Symposium
Academic article
Ekroll, Ingvild Kinn; Voormolen, Marco Marien; Standal, Øyvind Krøvel-Velle; Rau, Jochen; Løvstakken, Lasse. (2015) Coherent compounding in doppler imaging. IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control
Academic article
Rodriguez-Molares, Alfonso; Løvstakken, Lasse; Ekroll, Ingvild Kinn; Torp, Hans. (2015) Reconstruction of specular reflectors by iterative image source localization. Journal of the Acoustical Society of America
Academic article
Fadnes, Solveig; Bjærum, Steinar; Torp, Hans; Løvstakken, Lasse. (2015) Clutter filtering influence on blood velocity estimation using speckle tracking. IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control
Academic article
Fadnes, Solveig; Ekroll, Ingvild Kinn; Nyrnes, Siri Ann; Torp, Hans; Løvstakken, Lasse. (2015) Robust angle-independent blood velocity estimation based on dual-angle plane wave imaging. IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control
Academic article
Rodriguez-Molares, Alfonso; Løvstakken, Lasse; Ekroll, Ingvild Kinn; Torp, Hans. (2015) Needle detection by image source localization . Proceedings - IEEE Ultrasonics Symposium
Academic article
Torp, Hans; Rodriguez-Molares, Alfonso; Løvstakken, Lasse. (2015) Optimum beamformer strategy for detecting signals in clutter noise . Proceedings - IEEE Ultrasonics Symposium
Academic article
Rodriguez-Molares, Alfonso; Løvstakken, Lasse; Torp, Hans; Martin-Herrero, Julio; Bjåstad, Tore Grüner. (2015) Detection of the Intima-Lumen interface by coherent combination of RF scanlines . Proceedings - IEEE Ultrasonics Symposium
Academic article
Rodriguez-Molares, Alfonso; Torp, Hans; Denarie, Bastien; Løvstakken, Lasse. (2015) The angular apodization in coherent plane-wave compounding. IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control
Academic article
Nyrnes, Siri Ann; Løvstakken, Lasse. (2015) Flow speckle tracking provides new information of complex blood flow in congenital heart disease. Cardiology in the Young
Abstract
Avdal, Jørgen; Løvstakken, Lasse; Torp, Hans. (2015) Effects of reverberations and clutter filtering in pulsed Doppler using sparse sequences. IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control
Academic article
Fadnes, Solveig; Nyrnes, Siri Ann; Torp, Hans; Løvstakken, Lasse. (2014) Shunt flow evaluation in congenital heart disease based on two-dimensional speckle tracking. Ultrasound in Medicine and Biology
Academic article
Fredriksen, Tonje Dobrowen; Avdal, Jørgen; Ekroll, Ingvild Kinn; Dahl, Torbjørn; Løvstakken, Lasse; Torp, Hans. (2014) Investigations of spectral resolution and angle dependency in a 2-D tracking doppler method. IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control
Academic article
Santos, Pedro; Tong, Ling; Ortega, Alejandra; Løvstakken, Lasse; Samset, Eigil; D'hooge, Jan R M. (2014) Safety of Multi-Line Transmit beam forming for fast cardiac imaging - A simulation study. IEEE International Ultrasonics Symposium Proceedings
Academic article
Swillens, Abigail; Shcherbakova, Darya; Trachet, Bram; Segers, Patrick; Ekroll, Ingvild Kinn; Løvstakken, Lasse. (2014) A multi-angle plane wave imaging approach for high frequency 2D flow visualization in small animals: Simulation study in the murine arterial system. IEEE International Ultrasonics Symposium Proceedings
Academic article
Avdal, Jørgen; Ekroll, Ingvild Kinn; Fadnes, Solveig; Løvstakken, Lasse; Torp, Hans. (2014) 2D tracking doppler for cardiac jet flow velocity estimation. IEEE International Ultrasonics Symposium Proceedings
Academic article
Nyrnes, Siri Ann; Løvstakken, Lasse; Døhlen, Gaute; Skogvoll, Eirik; Torp, Hans; Skjærpe, Terje. (2014) Blood Flow Imaging in Transesophageal Echocardiography during Atrial Septal Defect Closure: A Comparison with the Current References. Echocardiography
Academic article
Fadnes, Solveig; Ekroll, Ingvild Kinn; Nyrnes, Siri Ann; Torp, Hans; Løvstakken, Lasse. (2014) Robust angle-independent blood velocity estimation based on multi-angle speckle tracking and vector Doppler. IEEE International Ultrasonics Symposium Proceedings
Academic article
Ekroll, Ingvild Kinn; Voormolen, Marco Marien; Standal, Øyvind Krøvel-Velle; Rau, Jochen; Løvstakken, Lasse. (2014) On the accuracy of coherent compounding Doppler imaging. IEEE International Ultrasonics Symposium Proceedings
Academic article
Angelelli, Paolo; Snare, Sten Roar; Nyrnes, Siri Ann; Bruckner, Stefan; Hauser, Helwig; Løvstakken, Lasse. (2014) Live ultrasound-based particle visualization of blood flow in the heart. Spring conference on Computer graphics
Academic article
Kiss, Gabriel; Iversen, Daniel Høyer; Standal, Øyvind Krøvel-Velle; Rau, Jochen; Torp, Hans; Løvstakken, Lasse. (2014) A visualization tool for improved assessment and follow-up with ultrasound. IEEE International Ultrasonics Symposium Proceedings
Academic article
Ekroll, Ingvild Kinn; Dahl, Torbjørn; Torp, Hans; Løvstakken, Lasse. (2014) Combined vector velocity and spectral doppler imaging for improved imaging of complex blood flow in the carotid arteries. Ultrasound in Medicine and Biology
Academic article
Johnsen, Ingvild Bjellmo; Løvstakken, Lasse; Åsvold, Bjørn Olav; Høydal, Morten; Sætrom, Pål; Bonnevie, Tora. (2014) NTNUs stjerneforskere. Adresseavisen
Interview Journal
Rimehaug, Audun Eskeland; Lyng, Oddveig; Nordhaug, Dag Ole; Løvstakken, Lasse; Aadahl, Petter; Kirkeby-Garstad, Idar. (2013) Cardiac power integral: a new method for monitoring cardiovascular performance. Physiological Reports
Academic article
Iversen, Daniel Høyer; Lindseth, Frank; Unsgård, Geirmund; Torp, Hans; Løvstakken, Lasse. (2013) Model-Based Correction of Velocity Measurements in Navigated 3-D Ultrasound Imaging During Neurosurgical Interventions. IEEE Transactions on Medical Imaging
Academic article
Fredriksen, Tonje Dobrowen; Ekroll, Ingvild Kinn; Løvstakken, Lasse; Torp, Hans. (2013) 2-D Tracking Doppler: A New Method to Limit Spectral Broadening in Pulsed Wave Doppler. IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control
Academic article
Ekroll, Ingvild Kinn; Swillens, Abigail; Segers, Patrick; Dahl, Torbjørn; Torp, Hans; Løvstakken, Lasse. (2013) Simultaneous Quantification of Flow and Tissue Velocities Based on Multi-Angle Plane Wave Imaging. IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control
Academic article
Van Canneyt, K.; Swillens, Abigail; Løvstakken, Lasse; Antiga, L; Verdonck, P.; Segers, Patrick. (2013) The accuracy of ultrasound volume flow measurements in the complex flow setting of a forearm vascular access. Journal of Vascular Access
Academic article
Nyrnes, Siri Ann; Løvstakken, Lasse; Døhlen, Gaute; Skogvoll, Eirik; Torp, Hans; Skjærpe, Terje. (2013) Transesophageal echocardiography with Blood Flow Imaging during Atrial Septal defect closure: A comparison with the current references. Cardiology in the Young
Abstract
Denarie, Bastien; Tangen, Thor Andreas; Ekroll, Ingvild Kinn; Rolim, Natale Pinheiro Lage; Torp, Hans; Bjåstad, Tore. (2013) Coherent Plane Wave Compounding for Very High Frame Rate Ultrasonography of Rapidly Moving Targets. IEEE Transactions on Medical Imaging
Academic article
Swillens, Abigail Emily; De Santis, G.; Degroote, Joris; Løvstakken, Lasse; Vierendeels, Jan; Segers, Patrick. (2012) Accuracy of carotid strain estimates from ultrasonic wall tracking: a study based on multiphysics simulations and in vivo data. IEEE Transactions on Medical Imaging
Academic article
Løvstakken, Lasse; Nyrnes, Siri Ann; Haugen, Bjørn Olav; Torp, Hans. (2012) Angle-independent quantification of complex flow patterns in congenital heart disease. IEEE International Ultrasonics Symposium Proceedings
Academic article
Ekroll, Ingvild Kinn; Torp, Hans; Løvstakken, Lasse. (2012) Spectral Doppler Estimation Utilizing 2-D Spatial Information and Adaptive Signal Processing. IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control
Academic article
Swillens, Abigail; De Witte, Marloes; Nordgaard, Håvard B.; Løvstakken, Lasse; Van Loo, D.; Trachet, Bram. (2012) Effect of the degree of LAD stenosis on "competitive flow" and flow field characteristics in LIMA-to-LAD bypass surgery. Medical and Biological Engineering and Computing
Academic article
Iversen, Daniel Høyer; Lindseth, Frank; Torp, Hans; Løvstakken, Lasse. (2012) Model-based correction of angle-dependencies in navigated 3-D flow imaging during neurosurgical interventions. IEEE International Ultrasonics Symposium Proceedings
Abstract
Fredriksen, Tonje Dobrowen; Ekroll, Ingvild Kinn; Løvstakken, Lasse; Torp, Hans. (2012) 2D Tracking Doppler: A New Method to Limit Spectral Broadening in Pulsed Wave Doppler. Proceedings - IEEE Ultrasonics Symposium
Academic article
Fadnes, Solveig; Nyrnes, Siri Ann; Swillens, Abigail; Torp, Hans; Løvstakken, Lasse. (2012) Shunt quantification in congenital heart disease based on two-dimensional speckle tracking. Proceedings - IEEE Ultrasonics Symposium
Academic article
Nyrnes, Siri Ann; Løvstakken, Lasse. (2012) Raskere og sikrere diagnose. Hjertebarnet
Article in business/trade/industry journal
Ekroll, Ingvild Kinn; Dahl, Torbjørn; Torp, Hans; Løvstakken, Lasse. (2012) In vivo Vector Flow Imaing With Retrospective Pulsed Wave Doppler. Proceedings - IEEE Ultrasonics Symposium
Academic article
Iversen, Daniel Høyer; Lindseth, Frank; Torp, Hans; Løvstakken, Lasse. (2012) Improved 3-D reconstruction of vascular flow based on plane wave imaging. IEEE International Ultrasonics Symposium Proceedings
Academic article
Swillens, Abigail Emily; Segers, Patrick; De Groote, Joris; Vierendeels, Jan; Løvstakken, Lasse. (2011) Improving ultrasonic imaging of the vascular wall and blood flow using a multiphysics simulation tool integrating fluid-structure interaction and ultrasound simulations. IEEE International Ultrasonics Symposium Proceedings
Academic article
Swillens, Abigail Emily; Segers, Patrick; Løvstakken, Lasse. (2011) A combined speckle tracking and phase-shift estimation approach for 2D blood flow imaging in the carotid bifurcation. IEEE International Ultrasonics Symposium Proceedings
Academic article
Iversen, Daniel Høyer; Lindseth, Frank; Unsgård, Geirmund; Torp, Hans; Løvstakken, Lasse. (2011) Model-based correction of angle-dependencies in navigated3-D flow imaging during neurosurgical interventions. IEEE International Ultrasonics Symposium Proceedings
Academic article
Swillens, Abigail Emily; De Santis, G.; Degroote, Joris; Løvstakken, Lasse; Vierendeels, Jan; Segers, Patrick. (2011) Multiphysics modeling in support of ultrasonic image development: integration of fluid-structure interaction simulations and Field II applied to the carotid artery. IEEE International Ultrasonics Symposium Proceedings
Academic article
Alnes, Solveig Søvik; Swillens, Abigail; Segers, Patrick; Torp, Hans; Løvstakken, Lasse. (2011) Clutter filtering issues in speckle tracking for two-dimensional blood velocity estimation - a potential solution based on compounded imaging. IEEE International Ultrasonics Symposium Proceedings
Academic article
Swillens, Abigail Emily; De Santis, G.; Degroote, Joris; Løvstakken, Lasse; Vierendeels, Jan; Segers, Patrick. (2011) Strain estimation in the carotid artery from ultrasonic wall tracking: a multiphysics model study. IEEE International Ultrasonics Symposium Proceedings
Academic article
Nyrnes, Siri Ann; Løvstakken, Lasse; Torp, Hans; Haugen, Bjørn Olav. (2011) Flow speckle tracking for detailed visualization of flow patterns in neonates with congenital heart defects. European Heart Journal-Cardiovascular Imaging
Abstract
Nyrnes, Siri Ann; Løvstakken, Lasse; Torp, Hans; Haugen, Bjørn Olav. (2011) Change in left ventricular vortex flow before and after surgery for coarctation of the aorta in an infant shown with plane wave imaging and flow speckle tracking. Cardiology in the Young
Abstract
Nyrnes, Siri Ann; Løvstakken, Lasse; Skogvoll, Eirik; Torp, Hans; Haugen, Bjørn Olav. (2010) Does a new ultrasound flow modality improve visualization of neonatal pulmonary veins?. Hjerteforum
Abstract
Nyrnes, Siri Ann; Løvstakken, Lasse; Skogvoll, Eirik; Torp, Hans; Haugen, Bjørn Olav. (2010) Does a new ultrasound flow modality improve visualization of neonatal pulmonary veins?. Echocardiography
Academic article
Swillens, Abigail Emily; Segers, Patrick; Løvstakken, Lasse. (2010) Two-dimensional flow imaging in the carotid bifurcation using a combined speckle tracking and phase-shift estimator: a study based on ultrasound simulations and in vivo analysis. Ultrasound in Medicine and Biology
Academic article
Ekroll, Ingvild Kinn; Torp, Hans; Løvstakken, Lasse. (2010) Retrospective PW-Doppler based on spatiotemporal adaptive signal processing. IEEE International Ultrasonics Symposium Proceedings
Academic article
Nordgaard, Håvard B.; Swillens, Abigail; Nordhaug, Dag Ole; Kirkeby-Garstad, Idar; Van Loo, D.; Vitale, Nicola. (2010) Impact of competitive flow on wall shear stress in coronary surgery: computational fluid dynamics of a LIMA-LAD model. Cardiovascular Research (CVR)
Academic article
Solheim, Ole; Selbekk, Tormod; Løvstakken, Lasse; Tangen, Geir Arne; Solberg, Ole Vegard; Johansen, Tonni Franke. (2010) Intrasellar ultrasound in transsphenoidal surgery: a novel technique. Neurosurgery
Academic article
Hergum, Torbjørn; Bjåstad, Tore Grüner; Løvstakken, Lasse; Kristoffersen, Kjell; Torp, Hans. (2010) Reducing Color Flow Artifacts caused by Parallel Beamforming. IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control
Academic article
Yu, Alfred C. H.; Løvstakken, Lasse. (2010) Eigen-Based Clutter Filter Design for Ultrasound Color Flow Imaging: A Review. IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control
Academic article
Swillens, Abigail Emily; Segers, Patrick; Torp, Hans; Løvstakken, Lasse. (2010) Two-dimensional blood velocity estimation with ultrasound: speckle tracking versus crossed-beam vector Doppler based on flow simulations in a carotid bifurcation model. IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control
Academic article
Swillens, Abigail Emily; Degroote, J.; Vierendeels, Jan; Løvstakken, Lasse; Segers, Patrick. (2010) A simulation environment for validating ultrasonic blood flow and vessel wall imaging based on fluid-structure interaction simulations: ultrasonic assessment of arterial distension and wall shear rate. Medical Physics
Academic article
Løvstakken, Lasse; Torp, Hans. (2010) Extended Velocity Range in Color Flow Imaging using Parallel Receive Beamforming. IEEE International Ultrasonics Symposium Proceedings
Academic article
Nyrnes, Siri Ann; Løvstakken, Lasse; Torp, Hans. (2009) Plane wave imaging for high frame rate flow visualisation in neonates with congenital heart disease. European Heart Journal-Cardiovascular Imaging
Abstract
Lindseth, Frank; Løvstakken, Lasse; Rygh, Ola Morten; Tangen, Geir Arne; Torp, Hans; Unsgaard, Geirmund. (2009) Blood Flow Imaging: An Angle-Independent Ultrasound Modality for Intraoperative Assessment of Flow Dynamics in Neurovascular Surgery. Neurosurgery
Academic article
Swillens, A; Løvstakken, Lasse; Kips, J; Torp, Hans; Segers, P. (2009) Ultrasound Simulation of Complex Flow Velocity Fields Based on Computational Fluid Dynamics. IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control
Academic article
Nordgaard, Håvard; Nordhaug, Dag; Kirkeby-Garstad, Idar; Løvstakken, Lasse; Vitale, Nicola; Haaverstad, Rune. (2009) Different graft flow patterns due to competitive flow or stenosis in the coronary anastomosis assessed by transit-time flowmetry in a porcine model. European Journal of Cardio-Thoracic Surgery
Academic article
Swillens, A; De Schryver, T; Løvstakken, Lasse; Torp, Hans; Segers, P. (2009) Assessment of Numerical Simulation Strategies for Ultrasonic Color Blood Flow Imaging, Based on a Computer and Experimental Model of the Carotid Artery. Annals of Biomedical Engineering
Academic article
Frijlink, Martijn Egbert; Løvstakken, Lasse; Torp, Hans. (2009) Investigation of transmit and receive performance at the fundamental and third harmonic resonance frequency of a medical ultrasound transducer. Ultrasonics
Academic article
Swillens, Abigail; Segers, Patrick; Torp, Hans; Løvstakken, Lasse. (2009) Two-dimensional flow velocity estimation in the carotid bifurcation: a study of crossed-beam vector Doppler and speckle tracking using computational fluid dynamics. IEEE International Ultrasonics Symposium Proceedings
Academic article
Nyrnes, Siri Ann; Løvstakken, Lasse; Torp, Hans; Haugen, Bjørn Olav. (2008) The coronary arteries visualised by a new ultrasound flow modality. European Heart Journal-Cardiovascular Imaging
Abstract
Nyrnes, Siri Ann; Løvstakken, Lasse. (2008) Ny ultralydmetode hjelper barn. VG : Verdens gang
Interview Journal
Nyrnes, Siri Ann; Løvstakken, Lasse. (2008) Ny norsk ultralyd. ComputerWorld Norge
Interview Journal
Frijlink, Martijn Egbert; Løvstakken, Lasse; Torp, Hans. (2008) Fundamental and Third Harmonic Operation of a Medical Phased Array Transducer. IEEE International Ultrasonics Symposium Proceedings
Academic article
Swillens, Abigail; Løvstakken, Lasse; Torp, Hans; Segers, Patrick. (2008) A comparison of multidimensional flow estimation techniques using computational fluid dynamics: speckle tracking versus vector Doppler. IEEE International Ultrasonics Symposium Proceedings
Academic article
Løvstakken, Lasse; Ibrahim, Khalid Shaker Oklah; Vitale, Nicola; Henriksen, Siren T.; Kirkeby-Garstad, Idar; Torp, Hans. (2008) Blood Flow Imaging: A New Two-dimensional Ultrasound Modality for Enhanced Intraoperative Visualization of Blood Flow Patterns in Coronary Anastomoses. Journal of the American Society of Echocardiography
Academic article
Nyrnes, Siri Ann; Løvstakken, Lasse. (2008) Ny ultralydmetode gir bedre blodstrømsbilder. Dagens medisin
Article in business/trade/industry journal
Oddershede, Niels; Løvstakken, Lasse; Torp, Hans; Jensen, Jørgen A.. (2008) Estimating 2-D vector velocities using multidimensional spectrum analysis. IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control
Academic article
Nyrnes, Siri Ann; Løvstakken, Lasse; Torp, Hans; Haugen, Bjørn Olav. (2007) A new ultrasound modality to visualise atrial septal defect flow in children. European Heart Journal-Cardiovascular Imaging
Abstract
Løvstakken, Lasse; Bjærum, Steinar; Torp, Hans. (2007) Optimal velocity estimation in ultrasound Color Flow Imaging in presence of clutter. IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control
Academic article
Khalid, Ibrahim; Løvstakken, Lasse; Kirkeby-Garstad, Idar; Torp, Hans; Vik-Mo, Harald; Haaverstad, Rune. (2007) Effect of the Cardiac Cycle on the Coronary Anastomosis Assessed by Ultrasound. Asian Cardiovascular and Thoracic Annals
Academic article
Oddershede, Niels; Løvstakken, Lasse; Torp, Hans; Jensen, Jørgen A.. (2007) Multi-dimensional spectrum analysis for 2-D vector velocity estimation. IEEE International Ultrasonics Symposium Proceedings
Academic article
Løvstakken, Lasse; Orderud, Fredrik; Torp, Hans. (2007) Real-time Indication of Acoustic Window for Phased-Array Transducers in Ultrasound Imaging. IEEE International Ultrasonics Symposium Proceedings
Academic article
Nyrnes, Siri Ann; Løvstakken, Lasse; Torp, Hans; Haugen, Bjørn Olav. (2007) Blood Flow Imaging - A New Angle-Independent Ultrasound Modality for the Visualization of Flow in Atrial Septal Defects in Children. Echocardiography
Academic article
Løvstakken, Lasse; Yu, Alfred C. H.; Torp, Hans. (2007) P6B-3 In Vivo Investigation of Filter order Influence in Eigen-based Clutter Filtering for Color Flow Imaging. IEEE International Ultrasonics Symposium Proceedings
Academic article
Yu, Alfred C. H.; Løvstakken, Lasse. (2007) Eigen-Based Clutter Filters for Color Flow Imaging: Single-Ensemble vs. Multi-Ensemble Approaches. IEEE International Ultrasonics Symposium Proceedings
Academic article
Løvstakken, Lasse; Bjærum, Steinar; Kristoffersen, K; Haaverstad, Rune; Torp, Hans. (2006) Real-time adaptive clutter rejection filtering in color flow imaging using power method iterations. IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control
Academic article
Løvstakken, Lasse; Tangen, Thor Andreas; Bjærum, Steinar; Torp, Hans. (2006) Optimal velocity estimation in ultrasound Color Flow Imaging in presence of clutter noise. IEEE International Ultrasonics Symposium Proceedings
Academic article
Løvstakken, Lasse; Bjærum, Steinar; Martens, Ditlef; Torp, Hans. (2006) Blood flow imaging - A new real-time, 2-D flow imaging technique. IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control
Academic article

Del av bok/rapport

Azad, Md Abulkalam; Chernyshov, Artem; Nyberg, John Anders Tomas; Tveten, Ingrid Elisabeth; Løvstakken, Lasse; Dalen, Håvard. (2024) EchoTracker: Advancing Myocardial Point Tracking in Echocardiography. Springer
Academic chapter/article/Conference paper
Bryon, Vincent; Wifstad, Sigurd Vangen; Grønli, Thomas; Hu, Jieyu; Løvstakken, Lasse. (2023) Automated Patient-Specific Left Ventricular Simulations for Cardiac Function Evaluation Using Image-Based Computational Fluid Dynamics and Color Flow Imaging. IEEE conference proceedings
Academic chapter/article/Conference paper
Hu, Jieyu; Smistad, Erik; Grenne, Bjørnar Leangen; Holte, Espen; Dalen, Håvard; Løvstakken, Lasse. (2023) Left-Ventricular Volume Estimation in Contrast-Enhanced Echocardiography Using Deep Learning. IEEE conference proceedings
Academic chapter/article/Conference paper
Hu, Jieyu; Smistad, Erik; Salte, Ivar Mjåland; Dalen, Håvard; Løvstakken, Lasse. (2022) Exploiting temporal information in echocardiography for improved image segmentation. IEEE conference proceedings
Academic chapter/article/Conference paper
Chernyshov, Artem; Østvik, Andreas; Smistad, Erik; Løvstakken, Lasse. (2022) Segmentation of 2D cardiac ultrasound with deep learning: simpler models for a simple task. IEEE conference proceedings
Academic chapter/article/Conference paper
Viggen, Erlend Magnus; Løvstakken, Lasse; Merciu, Ioan Alexandru; Måsøy, Svein-Erik. (2021) Better Automatic Interpretation of Cement Evaluation Logs through Feature Engineering. Society of Petroleum Engineers
Academic chapter/article/Conference paper
Løvstakken, Lasse; Møllerløkken, Andreas; Måsøy, Svein-Erik. (2009) Current trends in ultrasound imaging technology, SURF imaging, and decompression induced microbubbles. Smithsonian Institution Press
Academic chapter/article/Conference paper

Rapport

Pasdeloup, David Francis Pierre; Løvstakken, Lasse; Smistad, Erik; Dalen, Håvard. (2023) Deep Learning in the Echocardiography Workflow: Challenges and Opportunities. Norges teknisk-naturvitenskapelige universitet Norges teknisk-naturvitenskapelige universitet
Doctoral dissertation
Wigen, Morten Smedsrud; Løvstakken, Lasse; Fadnes, Solveig; Torp, Hans. (2019) 4D ultrasound vector flow imaging for intraventricular flow assessment. NTNU
Doctoral dissertation
Karabiyik, Yucel; Løvstakken, Lasse; Ekroll, Ingvild Kinn; Torp, Hans; Eik-Nes, Sturla. (2017) Quantitative Doppler analysis using color flow imaging and adaptive signal processing. Doktoravhandlinger ved NTNU (227)
Doctoral dissertation
Iversen, Daniel Høyer; Løvstakken, Lasse; Lindseth, Frank; Torp, Hans. (2014) Improved methods for navigated 3-D vascular ultrasound imaging. Doktoravhandlinger ved NTNU (190)
Doctoral dissertation
Fadnes, Solveig; Løvstakken, Lasse. (2014) Two-Dimensional Blood Velocity Estimation for Intracardiac Flow Assessment. Doktoravhandlinger ved NTNU (260)
Doctoral dissertation
Nyrnes, Siri Ann; Løvstakken, Lasse; Torp, Hans; Haugen, Bjørn Olav. (2014) New ultrasound flow modalities for evaluation of congenital heart defects. Doktoravhandlinger ved NTNU (275)
Doctoral dissertation
Løvstakken, Lasse. (2007) Signal processing in diagnostic ultrasound: Algorithms for real-time estimation and visualization of blood flow velocity. NTNU, Det medisinske fakultet
Doctoral dissertation

INFORMASJONSMATR

Løvstakken, Lasse. (2014) 3D ultralydbilder av blodstrøm kan gi bedre forståelse av hjertesykdom.
Website (informational material)

Undervisning

Emner

Formidling

2025

Academic lecture

Espeland, Torvald; Fadnes, Solveig; Berg, Erik Andreas Rye; Løvstakken, Lasse; Aakhus, Svend; Amundsen, Brage H.. (2025) Mechanical wave velocities in patients with aortic stenosis using 2D High frame rate echocardiography. KU Leuven Myocardial Function Imaging , Leuven 2025-02-06 - 2025-02-07
Academic lecture

Espeland, Torvald; Fadnes, Solveig; Berg, Erik Andreas Rye; Salles, Sebastien Andre Roger; Løvstakken, Lasse; Amundsen, Brage H.. (2025) Mechanical wave imaging- feasibility and reproducibility “the Trondheim experience”. KU Leuven Myocardial Function Imaging , Leuven 2025-02-06 - 2025-02-07

2024

Poster

Holmstrøm, Vegard; Smistad, Erik; Nyberg, John; Østvik, Andreas; Holte, Espen; Løvstakken, Lasse. (2024) Deep Learning for Fully Automated Echocardiographic Measurements of Left Ventricular Wall Thickness and Chamber Dimensions in the Parasternal Long-Axis View. European Society of Cardiology ESC Congress 2024 , London 2024-08-30 - 2024-09-02
Academic lecture

Wifstad, Sigurd Vangen; Kildahl, Henrik Agerup; Holte, Espen; Berg, Erik Andreas Rye; Grenne, Bjørnar Leangen; Dalen, Håvard. (2024) Automated valve quantification using deep learning. KU Leuven Leuven Meeting on Myocardial Function Imaging 2024 , Leuven, Belgia 2024-02-08 - 2024-02-09
Academic lecture

Pasdeloup, David Francis Pierre; Dalen, Håvard; Løvstakken, Lasse; Østvik, Andreas; Olaisen, Sindre Hellum. (2024) Challenges and Opportunities in end-to-end Dep Learning for Echocardiography. Leuven Meeting on Myocardial Function Imaging 2024-02-08 - 2024-02-09
Academic lecture

Holmstrøm, Vegard; Smistad, Erik; Østvik, Andreas; Holte, Espen; Løvstakken, Lasse; Dalen, Håvard. (2024) Real-Time Analysis of Left Ventricular Global Longitudinal Strain Using Deep Learning. Katholieke Universiteit Leuven Leuven Meeting on Myocardial Function Imaging 2024 , Leuven 2024-02-08 - 2024-02-09
Poster

Holmstrøm, Vegard; Smistad, Erik; Stølen, Stian Bergseng; Løvstakken, Lasse; Dalen, Håvard; Holte, Espen. (2024) Improving Time-Efficiency and Accuracy in Echocardiography: Real-Time Automated Measurements of Left Ventricular Global Longitudinal Strain using Deep Learning. European Society of Cardiology ESC Congress 2024 , London 2024-08-30 - 2024-09-02
Poster

Holmstrøm, Vegard; Smistad, Erik; Østvik, Andreas; Holte, Espen; Stølen, Stian Bergseng; Løvstakken, Lasse. (2024) Deep learning in Echocardiography: Real-Time Measurements of Left Ventricular Wall Thickness and Chamber Dimensions in the Parasternal Long-Axis View. European Society of Cardiology EuroEcho-Imaging , Berlin 2024-12-11 - 2024-12-13
Poster

Holmstrøm, Vegard; Smistad, Erik; Grue, Jahn Frederik; Løvstakken, Lasse; Stølen, Stian Bergseng; Dalen, Håvard. (2024) Deep Learning in Echocardiography: Fully Automated B-Mode MAPSE measurements in Real-Time. European Society of Cardiology EuroEcho-Imaging , Berlin 2024-12-11 - 2024-12-13
Lecture

van de Vyver, Gilles; Måsøy, Svein-Erik; Dalen, Håvard; Grenne, Bjørnar Leangen; Holte, Espen; Olaisen, Sindre Hellum. (2024) Regional quality estimation for echocardiography using deep learning. IEEE International Ultrasonics Symposium , Taipei, Taiwan 2024-09-22 - 2024-09-26
Poster

van de Vyver, Gilles; Måsøy, Svein-Erik; Dalen, Håvard; Grenne, Bjørnar Leangen; Holte, Espen; Olaisen, Sindre Hellum. (2024) Regional quality estimation for echocardiography using deep LEARNING. MICCAI 2024 27th. International Conference On Medical Image Computing and computer Assisted Intervention , Marrakesh, Morocco 2024-10-06 - 2024-10-10
Poster

Kvalevåg, Magnus Dalen; Måsøy, Svein-Erik; Løvstakken, Lasse. (2024) A web-based, real-time and interactive simulator for understanding emitted ultrasound fields from arbitrary sources. IEEE 2024 IEEE UFFC Joint Symposium , Taipei 2024-09-22 - 2024-09-26
Poster

Nyberg, John; Østvik, Andreas; Salte, Ivar Mjåland; Olaisen, Sindre Hellum; Karlsen, Sigve; Dahlslett, Thomas. (2024) Improved reproducibility of regional longitudinal strain in echocardiography by deep learning. ESC Congress 2024 2024-08-30 - 2024-09-02
Poster

Tveten, Ingrid; Nyberg, John; Grue, Jahn Frederik; Grenne, Bjørnar; Dalen, Håvard; Løvstakken, Lasse. (2024) Myocardial contraction patterns in heart failure – opportunities for new diagnostic markers. PRESIMAL, NORA Autumn Research School in Artificial Intelligence Methods in Medical Imaging 2024 , Brekstad 2024-09-18 - 2024-09-20
Poster

Witsø, Marit Helene Langset; Sørensen, Kristian; Fadnes, Solveig; Løvstakken, Lasse; Nyrnes, Siri Ann. (2024) Feasibility of non-invasive echocardiographic estimates of intraventricular pressure differences by blood speckle tracking in adults. European Society of Cardiology EuroEcho-Imaging 2024 , Berlin 2024-12-11 - 2024-12-13
Academic lecture

Sæbø, Sigbjørn; Pettersen, Håkon Neergaard; Bøen, Gunn Catrin Fossum; Jakobsen, Even Olav; Langøy, Per Kristian Fahle; Nilsen, Hans Olav. (2024) The effect of deep learning guidance and automated measurements on the reproducibility of left ventricular ejection fraction and global longitudinal strain in breast cancer patients receiving trastuzumab. Norsk Cardiologisk Selskap Kardiologisk Høstmøte , Oslo 2024-10-24 - 2024-10-26

2023

Academic lecture

Tveten, Ingrid Elisabeth; Nyberg, John; Grue, Jahn Frederik; Dalen, Håvard; Løvstakken, Lasse; Grenne, Bjørnar Leangen. (2023) Deep Learning-Based Functional Measurements from Parasternal Short-Axis in Echocardiography are Related to Hypertension and Left Ventricle Ejection Fraction. PRESIMAL, NORA Autumn Research School in Artificial Intelligence Methods in Medical Imaging 2023 , Sommarøy 2023-09-13 - 2023-09-15
Lecture

Hu, Jieyu; Løvstakken, Lasse. (2023) Data mining for improved echocardiography using deep learning. The Artimino conference on Medical Ultrasound Technology , Artimino 2023-06-11 - 2023-06-14
Academic lecture

Wifstad, Sigurd Vangen; Indimath, Shivanandan; Bryon, Vincent; Avdal, Jørgen; Løvstakken, Lasse; Måsøy, Svein-Erik. (2023) Can we use Deep Learning to extract important information from poor resolution Doppler images?. Universita degli studi Firenze The 2023 Artimino Conference on Medical Ultrasound Technology , Artimino 2023-06-11 - 2023-06-14
Poster

Bryon, Vincent; Wifstad, Sigurd Vangen; Hu, Jieyu; Grønli, Thomas; Løvstakken, Lasse. (2023) Automated Patient-Specific Left Ventricular Simulations for Cardiac Function Evaluation Using Image-Based Computational Fluid Dynamics and Color Flow Imaging. IEEE International Ultrasonics Symposium 2023 , Montreal 2023-09-03 - 2023-09-08
Academic lecture

Bryon, Vincent; Wifstad, Sigurd Vangen; Hu, Jieyu; Grønli, Thomas; Løvstakken, Lasse. (2023) Simulating Blood Flow in the Heart: Enhancing Color Flow Imaging with Computational Fluid Dynamics. Universita degli studi Firenze The 2023 Artimino Conference on Medical Ultrasound Technology , Artimino 2023-06-11 - 2023-06-14
Lecture

Van De Vyver, Gilles; Smistad, Erik; Løvstakken, Lasse; Olaisen, Sindre Hellum; Dalen, Håvard; Thomas, Sarina. (2023) Towards Robust Cardiac Segmentation using Graph Convolutional Networks. International ultrasonics symposium 2023 2023-09-22 - 2023-09-26
Academic lecture

Yari, Yasin; Løvstakken, Lasse; Måsøy, Svein-Erik; Næve, Ingun; Bergtun, Per Helge; Voormolen, Marco Marien. (2023) Ultrasound and Deep Learning for Automated Egg Maturation Prediction of Atlantic Salmon. IUS Board IUS 2023 , Montreal 2023-09-03 - 2023-09-08
Lecture

Fiorentini, Stefano; Mohajery, Mohammad; Løvstakken, Lasse; Salles, Sebastien Andre Roger. (2023) Detection of Natural Mechanical Waves in the Heart Using Directional Clutter Filter Wave Imaging (DCFWI). 2023 IEEE International Ultrasonics Symposium 2023-09-03 - 2023-09-08
Poster

Wifstad, Sigurd Vangen; Kildahl, Henrik Agerup; Holte, Espen; Grenne, Bjørnar Leangen; Dalen, Håvard; Løvstakken, Lasse. (2023) Automatic Jet Flow Convergence Detection and Quantification from 2D Color Doppler Flow Using Deep Learning. IEE International Ultrasonics Symposium 2023 2023-09-03 - 2023-09-08
Poster

Kvalevåg, Magnus; Vrålstad, Anders Emil; Rindal, Ole Marius Hoel; Bjåstad, Tore Grüner; Dénarié, Bastien; Kristoffersen, Kjell. (2023) vbeam: A Fast and Differentiable Beamformer for Optimizing Ultrasound Imaging. IEEE IEEE International Ultrasonics Symposium , Montréal 2023-09-04 - 2023-09-04
Academic lecture

Pasdeloup, David Francis Pierre; Østvik, Andreas; Olaisen, Sindre Hellum; Skogvoll, Eirik; Dalen, Håvard; Løvstakken, Lasse. (2023) Automated measurements with AI: the gap between proof-of-concept and clinical use. Artimino Ultrasound Conference 2023-06-11 - 2023-06-14
Lecture

Hu, Jieyu; Smistad, Erik; Grenne, Bjørnar Leangen; Holte, Espen; Dalen, Håvard; Løvstakken, Lasse. (2023) Left-Ventricular Volume Estimation in Contrast-Enhanced Echocardiography Using Deep Learning. 2023 IEEE International Ultrasonics Symposium (IUS) 2023-09-03 - 2023-09-08
Academic lecture

Holmstrøm, Vegard; Smistad, Erik; Nyberg, John; Østvik, Andreas; Holte, Espen; Løvstakken, Lasse. (2023) Deep Learning for Automated Analyses in the PLAX View. Norsk Cardiologisk Selskap Kardiologisk høstmøte 2023 2023-10-26 - 2023-10-28
Poster

Chernyshov, Artem; Grue, Jahn Frederik; Nyberg, John; Østvik, Andreas; Van De Vyver, Gilles; Smistad, Erik. (2023) Automated segmentation and quantification of the right ventricle in 2D echocardiography. IEEE IEEE International Ultrasonics Symposium 2023 , Montreal 2023-09-03 - 2023-09-08
Poster

Mawad, Wadi; Nyrnes, Siri Ann; Fadnes, Solveig; Løvstakken, Lasse; Sørensen, Kristian; Mertens, Luc. (2023) Intracardiac Flow Dynamics In Children With Single Ventricle Physiology Demonstrated By High-frame-rate Cardiac Ultrasound And Blood Speckle Tracking. World Congress of Pediatric Cardiology and Cardiac Surgery 8TH World Congress of Pediatric Cardiology and Cardiac Surgery , Washington D.C. 2023-08-27 - 2023-09-01
Poster

Mawad, Wadi; Henry, Matthew; Sørensen, Kristian; Fadnes, Solveig; Løvstakken, Lasse; Mertens, Luc. (2023) Intracardiac Flow Dynamics In Children With Single Ventricle Physiology Demonstrated By High-frame-rate Cardiac Ultrasound And Blood SpeckleTracking. WCPCCS 2023 8th World Congress of Pediatric Cardiology and Cardiac Surgery , Washington DC 2023-08-27 -
Poster

Henry, Matthew; Fadnes, Solveig; Sørensen, Kristian; Mawad, Wadi; Løvstakken, Lasse; Mertens, Luc. (2023) Evaluation Of Right Ventricular Diastolic Flow In Children With Congenital Heart Diseases Using Blood Speckle Tracking. WCPCCS 2023 8th World Congress of Pediatric Cardiology and Cardiac Surgery , Washington DC 2023-08-27 -
Poster

Henry, Matthew; Fadnes, Solveig; Sørensen, Kristian; Løvstakken, Lasse; Mertens, Luc; Nyrnes, Siri Ann. (2023) Evaluation of left ventricular diastolic flow dynamics in children with pulmonary arterial hypertension using blood speckle tracking. . Ass. for European Paediatric and Congenital Cardiology AEPC 2023 , Dublin 2023-04-26 - 2023-04-29
Poster

Henry, Matthew; Fadnes, Solveig; Sørensen, Kristian; Løvstakken, Lasse; Nyrnes, Siri Ann; Mertens, Luc. (2023) Evaluation of natural mechanical wave velocities in children with pulmonary arterial hypertension. . Ass. for European Paediatric and Congenital Cardiology AEPC 2023 , Dublin 2023-04-26 - 2023-04-29
Academic lecture

Sørensen, Kristian; Fadnes, Solveig; Flade, Hans-Martin; Kirkeby-Garstad, Idar; Østvik, Andreas; Henry, Matthew. (2023) Assessment of Diastolic Suction by Blood Speckle Tracking; Invasive Validation and Clinical Application. WCPCCS 2023 8th World Congress of Pediatric Cardiology and Cardiac Surgery , Washington DC 2023-08-27 - 2023-09-01
Poster

Sørensen, Kristian; Fadnes, Solveig; Flade, Hans-Martin; Kirkeby-Garstad, Idar; Østvik, Andreas; Henry, Matthew. (2023) Assessment of Diastolic Suction by Blood Speckle Tracking; Invasive Validation and Clinical Application. WCPCCS 2023 8th World Congress of Pediatric Cardiology and Cardiac Surgery , Washington DC 2023-08-27 - 2023-09-01
Poster

Nyberg, John; Jakobsen, Even Olav; Østvik, Andreas; Holte, Espen; Stølen, Stian; Løvstakken, Lasse. (2023) Left atrial strain in a large healthy population. Nordic Cardiac Imaging , Stockholm 2023-04-25 - 2023-04-26
Poster

Nyberg, John; Jakobsen, Even Olav; Østvik, Andreas; Holte, Espen; Stølen, Stian; Løvstakken, Lasse. (2023) Determinants of left atrial reservoir strain in a large healthy population. European Society of Cardiology EACVI 2023 , Barcelona 2023-05-10 - 2023-05-12
Academic lecture

Grønli, Thomas; Løvstakken, Lasse; Nyrnes, Siri Ann; Fadnes, Solveig. (2023) 4D Cardiac Vector Flow Imaging from Triplane Color Doppler and Dynamic Model-Based Regularization. IEEE UFFC 2023 IEEE International Ultrasonics Symposium , Montreal 2023-09-03 - 2023-09-08
Poster

Olaisen, Sindre Hellum; Espeland, Torvald; Smistad, Erik; Hu, Jieyu; Pasdeloup, David Francis Pierre; Østvik, Andreas. (2023) Automatic measurements of left ventricular volumes and ejection fraction by artificial intelligence reduces time-consumption and inter-observer variability. EACVI EACVI , Barcelona 2023-05-10 - 2023-05-12
Poster

van de Vyver, Gilles; Thomas, Sarina; Ben-Yosef, Guy; Olaisen, Sindre Hellum; Dalen, Håvard; Løvstakken, Lasse. (2023) Towards Robust Cardiac Segmentation using Graph Convolutional Networks. NorwAI Nordic Probabilistic AI School (ProbAI) , Trondheim 2023-06-12 - 2023-06-16
Academic lecture

Pettersen, Håkon Neergaard; Sæbø, Sigbjørn; Smistad, Erik; Pasdeloup, David Francis Pierre; Stølen, Stian Bergseng; Grenne, Bjørnar Leangen. (2023) Real-time guiding by deep learning during echocardiography to reduce left ventricular foreshortening and measurement variability. Department of Cardiovascular Sciences, Research Groups Meeting on Myocardial Function Imaging , Leuven 2023-02-09 - 2023-02-10
Academic lecture

Pettersen, Håkon Neergaard; Sæbø, Sigbjørn; Pasdeloup, David Francis Pierre; Smistad, Erik; Østvik, Andreas; Olaisen, Sindre Hellum. (2023) The Impact of Real-time Guiding by Deep Learning on Inter-operator Variability of Left Ventricular Function Measurements. Norsk Cardiologisk Selskap, Den Norske Legeforening Høstmøte, Norsk Cardiologisk Selskap , Scandic Fornebu, Martin Lingesvei 2,1364, Fornebu 2023-10-26 - 2023-10-28
Poster

Pettersen, Håkon Neergaard; Sæbø, Sigbjørn; Pasdeloup, David Francis Pierre; Olaisen, Sindre Hellum; Østvik, Andreas; Bøen, Gunn Catrin Fossum. (2023) The impact of real-time guiding by deep learning on test-retest variability of automated left ventricular systolic function measurements. EACVI EACVI , Barcelona 2023-05-10 - 2023-05-12

2022

Academic lecture

Szerypo Magelssen, Malgorzata Izabela; Hjorth-Hansen, Anna; Andersen, Garrett Newton; Graven, Torbjørn; Kleinau, Olaf; Skjetne, Kyrre. (2022) The importance of patient characteristics, operators, and image quality for accurate diagnoses of heart failure by general practitioners using hand-held ultrasound. ESC European Heart Congress , Barcelona 2022-08-26 - 2022-08-29
Academic lecture

Wifstad, Sigurd Vangen; Hauge, Ståle Wågen; Seljelv, Sigvard Johansen; Sæbø, Sigbjørn; Mekonnen, Desalew; Nega, Berhanu. (2022) Tracking heart valve motion from transthoracic echocardiography using deep learning. IEEE International Ultrasonics Symposium (IUS) , Venezia 2022-10-11 - 2022-10-13
Poster

Smistad, Erik; Dalen, Håvard; Grenne, Bjørnar; Løvstakken, Lasse. (2022) Segmentation of parasternal long axis views using deep learning. IEEE International Ultrasonics Symposium 2022 2022-10-10 - 2022-10-13
Poster

Chernyshov, Artem; Østvik, Andreas; Smistad, Erik; Løvstakken, Lasse. (2022) Segmentation of 2D cardiac ultrasound with deep learning: simpler models for a simple task. IEEE IEEE IUS 2022 , Venice 2022-10-10 - 2022-10-13
Academic lecture

Garone, Rosa Virginia; Lønmo, Tor Inge Birkenes; Tichy, Frank; Diesing, Markus; Thorsnes, Terje; Schimel, Alexandre Carmelo Gregory. (2022) Deep Learning for seafloor sediment mapping: a preliminary investigation using U-Net. Geohab 2022, Marine Geological & Biological Mapping , Venezia 2022-05-16 - 2022-05-20
Academic lecture

Olaisen, Sindre Hellum; Smistad, Erik; Østvik, Andreas; Hu, Jieyu; Pasdeloup, David Francis Pierre; Stylidis, Michael. (2022) Automatic calculation of left ventricular ejection fraction using artificial intelligence. Norsk Cardiologisk Selskap Kardiologisk høstmøte 2022 , Fornebu, Oslo 2022-10-27 - 2022-10-29
Academic lecture

Wifstad, Sigurd Vangen; Hauge, Ståle Wågen; Seljelv, Sigvard Johansen; Sæbø, Sigbjørn; Mekonnen, Desalew; Nega, Berhanu. (2022) Tracking heart valve motion from transthoracic echocardiography using deep learning. PRESIMAL, MMIV, UIB Autumn Research School in Artificial Intelligence Methods in Medical Imaging 2022 , Solstrand 2022-09-14 - 2022-09-16
Academic lecture

Smistad, Erik; Østvik, Andreas; Grue, Jahn Frederik; Dalen, Håvard; Løvstakken, Lasse. (2022) Tracking-based mitral annular plane systolic excursion (MAPSE) measurement using deep learning in B-mode ultrasound. IEEE International Ultrasonics Symposium 2022 2022-10-10 - 2022-10-13
Academic lecture

Olaisen, Sindre Hellum; Smistad, Erik; Grenne, Bjørnar; Holte, Espen; Løvstakken, Lasse; Dalen, Håvard. (2022) Real-time AI-assisted calculation of left ventricular ejection fraction in echocardiography. NORHEART 20th Annual Norwegian Symposium on Heart Research , Holmenkollen, Oslo 2022-09-08 - 2022-09-09
Academic lecture

Mohajery, Mohammad; Fadnes, Solveig; Espeland, Torvald; Salles, Sebastien; Løvstakken, Lasse. (2022) Three-dimensional velocity estimation of natural mechanical waves in the myocardium. IEEE International ultrasonics symposium , Italy 2022-10-10 - 2022-10-13
Academic lecture

Hu, Jieyu; Smistad, Erik; Salte, Ivar Mjåland; Dalen, Håvard; Løvstakken, Lasse. (2022) Exploiting temporal information in echocardiography for improved image segmentation. IEEE IUS IEEE IUS 2022 lecture presentation , Venice 2022-10-11 - 2022-10-13
Lecture

Løvstakken, Lasse. (2022) Automatiserte målinger - hvordan gjør maskinen det?. Norsk Cardiologisk Selskap ( Norsk Cardiologisk Selskap (NCS) høstmøte , Oslo 2022-10-27 - 2022-10-29
Poster

Fermann, Benjamin Strandli; Aase, Svein Arne; Nyberg, John; Grue, Jahn Frederik; Grenne, Bjørnar; Dalen, Håvard. (2022) Cardiac event detection in echocardiography using deep learning and triplane recordings. Institue of Electrical and Electronics Engineers (IEEE) IEEE 2022 International Ultrasonics Symposium (IUS) , Venice 2022-10-10 - 2022-10-13
Academic lecture

Yari, Yasin; Løvstakken, Lasse; Måsøy, Svein-Erik; Næve, Ingun; Bergtun, Per Helge; Voormolen, Marco Marien. (2022) Ultrasound and Deep Learning for Automated Maturation Prediction of Atlantic Salmon. IUS 2022 2022-10-10 - 2022-10-13
Academic lecture

Mohajery, Mohammad; Espeland, Torvald; Berg, Erik Andreas Rye; Fadnes, Solveig; Salles, Sebastien; Amundsen, Brage H.. (2022) 3D mechanical wave imaging – initial analysis and insight. Leuven online meeting on myocardial function imaging 2022-02-10 - 2022-02-12
Poster

Pasdeloup, David Francis Pierre; Sæbø, Sigbjørn; Olaisen, Sindre Hellum; Pettersen, Håkon Neergaard; Østvik, Andreas; Holte, Espen. (2022) Real-Time Echocardiography Guidance for Optimized Apical Standard Views. PRESIMAL Autumn Research School 2022-09-14 - 2022-09-16
Poster

Pasdeloup, David Francis Pierre; Sæbø, Sigbjørn; Olaisen, Sindre Hellum; Pettersen, Håkon Neergaard; Østvik, Andreas; Holte, Espen. (2022) Real-Time Echocardiography Guidance for Optimized Apical Standard Views. IEEE IEEE International Ultrasound Symposium 2022-10-10 - 2022-10-13
Academic lecture

Sæbø, Sigbjørn; Pettersen, Håkon Neergaard; Østvik, Andreas; Pasdeloup, David Francis Pierre; Smistad, Erik; Stølen, Stian Bergseng. (2022) Automated analyses and real-time guiding by deep learning to reduce test-retest variability of global longitudinal strain. ESC 2022 , Barcelona 2022-08-25 - 2022-08-29
Academic lecture

Sæbø, Sigbjørn; Pettersen, Håkon Neergaard; Østvik, Andreas; Smistad, Erik; Pasdeloup, David Francis Pierre; Grenne, Bjørnar. (2022) Automated analyses and real-time guiding by deep learning to reduce variability of global longitudinal strain. CIUS CIUS Fall Conference 2022 , Trondheim 2022-11-09 -

2021

Poster

Sørensen, Kristian; Fadnes, Solveig; Salvesen, Øyvind; Mertens, Luc; Løvstakken, Lasse; Nyrnes, Siri Ann. (2021) Assessment of Regional Early Diastolic Intraventricular Pressure Gradients by Blood Speckle Tracking in Children. . American Society of echocardiography ASE 2021 , Boston, konvertert til digital konferanse pga Covid 19 2021-06-18 - 2021-06-21
Academic lecture

Smistad, Erik; Steinsland, Erik Nikolai; LÃ¸vstakken, Lasse. (2021) Real-time 3D left ventricle segmentation and ejection fraction using deep learning. IEEE IEEE International Ultrasonics Symposium 2021-09-11 - 2021-09-16
Academic lecture

Smistad, Erik; Ãstvik, Andreas; LÃ¸vstakken, Lasse. (2021) Annotation Web - An open-source web-based annotation tool for ultrasound images. IEEE IEEE International Ultrasonics Symposium 2021-09-11 - 2021-09-16
Poster

Mohajery, Mohammad; Wigen, Morten Smedsrud; Fadnes, Solveig; Pasdeloup, David Francis Pierre; Smistad, Erik; Espeland, Torvald. (2021) The variation of natural myocardial mechanical wave velocities due to 3D propagation. IEEE International Ultrasonics Symposium , Virtual 2021-09-11 - 2021-09-16
Academic lecture

Grønli, Thomas; Wigen, Morten Smedsrud; Daae, Annichen Søyland; Segers, Patrick; Støylen, Asbjørn; Løvstakken, Lasse. (2021) Model-Based Regularization for Non-Invasive Intraventricular Flow and Pressure Estimates in 4D Ultrasound Imaging. IEEE UFFC International Ultrasonics Symposium , Virtual 2021-09-11 - 2021-09-16
Poster

Pasdeloup, David Francis Pierre; Olaisen, Sindre Hellum; Ãstvik, Andreas; Holte, Espen; Grenne, Bjørnar; Sæbo, Sigbjørn. (2021) Real-time Image Guiding in Echocardiography using Deep Learning. International Ultrasound Symposium 2021-09-11 - 2021-09-16
Poster

Hu, Jieyu; Olaisen, Sindre Hellum; Smistad, Erik; Dalen, Håvard; LÃ¸vstakken, Lasse. (2021) Fully automated left atrium quantification using deep learning. IEEE IUS 2021 2021-09-11 - 2021-09-16
Academic lecture

Smistad, Erik; Salte, Ivar Mjåland; Dalen, Håvard; LÃ¸vstakken, Lasse. (2021) Real-time temporal coherent left ventricle segmentation using convolutional LSTMs. IEEE IEEE International Ultrasonics Symposium 2021-09-11 - 2021-09-16
Poster

Wifstad, Sigurd Vangen; Løvstakken, Lasse; Avdal, Jørgen; Torp, Hans; Fiorentini, Stefano. (2021) Automatic quantification of valvular insufficiency using 3D Doppler imaging and deep learning . NTNU Probabilistic AI summer school , Virituelt 2021-06-14 - 2021-06-18
Academic lecture

Wifstad, Sigurd Vangen; Løvstakken, Lasse; Avdal, Jørgen; Torp, Hans; Fiorentini, Stefano. (2021) Automatic quantification of valve insufficiency using 3D Doppler ultrasound and deep learning. Centre of Innovative Ultrasound Solutions CIUS conference , Virituelt 2021-04-28 -
Poster

Wifstad, Sigurd Vangen; Løvstakken, Lasse; Avdal, Jørgen; Torp, Hans; Fiorentini, Stefano. (2021) Automatic quantification of valvular insufficiency using 3D Doppler imaging and Deep Learning. IEEE International Ultrasonics Symposium 2021 , Virituelt 2021-09-11 - 2021-09-16
Academic lecture

Viggen, Erlend Magnus; Løvstakken, Lasse; Merciu, Ioan Alexandru; Måsøy, Svein-Erik. (2021) Better Automatic Interpretation of Cement Evaluation Logs through Feature Engineering. SPE/IADC SPE/IADC Virtual International Drilling Conference and Exhibition , Online 2021-03-08 - 2021-03-21
Academic lecture

Espeland, Torvald; Wigen, Morten Smedsrud; Berg, Erik Andreas Rye; Salles, Sebastien; Løvstakken, Lasse; Amundsen, Brage H.. (2021) Mechanical wave velocities by high frame rate imaging in healthy subjects. KU LEUVEN MEETING ON MYOCARDIAL FUNCTION IMAGING , Leuven 2021-02-04 - 2021-02-06
Academic lecture

Pettersen, Håkon Neergaard; Sæbø, Sigbjørn; Pasdeloup, David Francis Pierre; Østvik, Andreas Raae; Smistad, Erik; Stølen, Stian Bergseng. (2021) Impact of real-time feedback by deep learning during echocardiography on test-retest variability of left ventricular systolic function measurements. Norsk Cardiologisk Selskap, Den Norske Legeforening Høstmøte, Norsk Cardiologisk Selskap , Scandic Fornebu, Martin Lingesvei 2,1364, Fornebu 2021-10-28 - 2021-10-30
Poster

Sæbø, Sigbjørn; Pettersen, Håkon Neergaard; Pasdeloup, David Francis Pierre; Smistad, Erik; Stølen, Stian Bergseng; Grenne, Bjørnar. (2021) Real-time automatic feedback by deep learning to reduce apical foreshortening in echocardiography. EuroEcho 2021 2021-12-09 -
Academic lecture

Pettersen, Håkon Neergaard; Sæbø, Sigbjørn; Pasdeloup, David Francis Pierre; Østvik, Andreas; Smistad, Erik; Stølen, Stian Bergseng. (2021) Impact of real-time feedback by deep learning during echocardiography on test-retest variability of left ventricular systolic function measurements. Centre for Innovative Ultrasound Solutions CIUS Fall Conference 2021 , Trondheim 2021-12-07 - 2021-12-08
Academic lecture

Pettersen, Håkon Neergaard; Sæbø, Sigbjørn; Pasdeloup, David Francis Pierre; Østvik, Andreas; Smistad, Erik; Stølen, Stian Bergseng. (2021) The impact of real-time feedback by deep learning during echocardiography on test-retest variability of left ventricular systolic function measurements . European Society of Cardiology EuroEcho 2021 , Berlin 2021-12-09 - 2021-12-11

2020

Academic lecture

Grønli, Thomas; Wigen, Morten Smedsrud; Eriksen, Marius; Stensæth, Knut Haakon; Løvstakken, Lasse. (2020) A Fully Automated Ultrasound Imaging Pipeline for 4D Intraventricular Flow Reconstruction - in Vivo Comparison to Phase-Contrast MRI. IEEE UFFC 2020 IEEE International Ultrasonics Symposium , Las Vegas (Virtual) 2020-09-06 - 2020-09-11
Poster

Fadnes, Solveig; Sørensen, Kristian; Nyrnes, Siri Ann; Wigen, Morten Smedsrud; Løvstakken, Lasse. (2020) Intranventricular Pressure Gradients - Vector Flow Imaging versus Color M-Mode. IEEE International Ultrasonics Symposium 2020 2020-09-08 - 2020-09-11
Academic lecture

Salles, Sebastien; Fadnes, Solveig; Nyrnes, Siri Ann; Løvstakken, Lasse. (2020) High-frame-rate imaging of cardiac tissue-flow interaction: Towards the origin of the atrial kick wave. IEEE International Ultrasonics Symposium 2020 2020-09-08 - 2020-09-11
Academic lecture

Henry, Matthew; Fadnes, Solveig; Løvstakken, Lasse; Mawad, Wadi; Mertens, Luc; Nyrnes, Siri Ann. (2020) Bicuspid aortic valve assessment using blood speckle tracking in children. European Society of Cardiology EACVI Best of Imaging 2020 , Webbased 2020-12-11 - 2020-12-12
Academic lecture

Wigen, Morten Smedsrud; Fiorentini, Stefano; Støylen, Asbjørn; Løvstakken, Lasse. (2020) Aortic volume flow estimation using 4D vector flow imaging. IEEE 2020 IEEE International Ultrasonics Symposium 2020-10-08 - 2020-10-11
Poster

Pasdeloup, David Francis Pierre; Østvik, Andreas; Smistad, Erik; Løvstakken, Lasse; Dalen, Håvard; Olaisen, Sindre Hellum. (2020) Automatic Apical Standard Views extraction from 3D ultrasound volumes using Deep Learning. Virtual IEEE IUS Symposium 2020-09-06 - 2020-09-11
Academic lecture

Espeland, Torvald; Salles, Sebastien; Støylen, Asbjørn; Berg, Erik Andreas Rye; Hammer, Tommy; Amundsen, Brage H.. (2020) Measuring myocardial mechanical wave velocities using 3D – initial clinical results . KU LEUVEN MEETING ON MYOCARDIAL FUNCTION IMAGING , Leuven 2020-02-06 - 2020-02-07
Academic lecture

Grønli, Thomas; Leinan, Paul Roger; Wigen, Morten Smedsrud; Skjetne, Paal; Nyrnes, Siri Ann; Dahl, Sigrid Kaarstad. (2020) Flow regularization and reconstruction in echocardiography. KU Leuven Meeting on Myocardial Function Imaging , Heverlee 2020-02-06 - 2020-02-07
Poster

Sørensen, Kristian; Fadnes, Solveig; Wigen, Morten Smedsrud; Salvesen, Øyvind; Mertens, Luc; Løvstakken, Lasse. (2020) Assessment of Diastolic Intraventricular Pressure Gradients in Children by Blood Speckle Tracking. A Feasibility Study. American Society of echocardiography ASE 2020 Virtual Experience , Denver USA 2020-08-08 - 2020-08-10
Poster

Mawad, Wadi; Fadnes, Solveig; Grønli, Thomas; Løvstakken, Lasse; Mertens, Luc; Nyrnes, Siri Ann. (2020) Children with Pulmonary Hypertension Have Abnormal Flow patterns in the Main Pulmonary Artery as Shown By High Frame Rate Ultrasound Imaging . ASE 2020 2020-08-08 - 2020-08-10
Academic lecture

Løvstakken, Lasse. (2020) Simplifying echocardiography - opportunities and challenges. MICCAI ASMUS workshop , Virtual 2020-10-04 - 2020-10-08

2019

Academic lecture

Wigen, Morten Smedsrud; Daae, Annichen Søyland; Grønli, Thomas; Støylen, Asbjørn; Løvstakken, Lasse. (2019) A single recording for quantitative echocardiography - Simultaneous tissue and flow measurements. Myocardial function imaging 2019-02-07 - 2019-02-18
Academic lecture

Leclerc, Sarah; Smistad, Erik; Grenier, Thomas; Lartizien, Carole; Østvik, Andreas; Cervenansky, Frederic. (2019) RU-Net: A Refining Segmentation Network for 2D Echocardiography. IEEE International Ultrasonics Symposium (IUS) , Glasgow 2019-10-06 - 2019-10-09
Poster

Østvik, Andreas; Salte, Ivar Mjåland; Smistad, Erik; Løvstakken, Lasse. (2019) Adapting deep learning based motion estimation for myocardial function imaging. IEEE IEEE International Ultrasonics Symposium (IUS) , Glasgow 2019-10-06 - 2019-10-09
Academic lecture

Østvik, Andreas; Smistad, Erik; Løvstakken, Lasse. (2019) Machine learning in Echocardiography. Haukeland universitetssjukehus Cardiac Imaging Day , Bergen 2019-10-17 - 2019-10-18
Popular scientific lecture

Løvstakken, Lasse; Måsøy, Svein-Erik; Søraunet, Arild; Nyrnes, Siri Ann; Rau, Jochen; Njølstad, Tormod. (2019) "Ultralydhovedstaden" (Innovasjonsfrokost). Technoport, Næringsforeningen, Trondheimsregionen og CIUS Populærvitenskapelig frokostseminar med påmelding , Work-work, Munkegata 58, Trondheim 2019-02-28 - 2019-02-28
Academic lecture

Torp, Hans; Løvstakken, Lasse. (2019) Super‐resolution power-Doppler imaging. IEEE UFFC IEEE International Ultrasonic Symposium , Glasgow 2019-10-07 - 2019-10-09
Academic lecture

Løvstakken, Lasse; Østvik, Andreas; Smistad, Erik. (2019) Deep learning for automated anatomical and deformation measurements in echocardiography. Annual congress of the Belgian working group on non-invasive cardiac imaging , Brüssel 2019-10-24 - 2019-10-26
Academic lecture

Løvstakken, Lasse; Østvik, Andreas; Smistad, Erik. (2019) Deep learning for automated anatomical and deformation measurements in echocardiography. Leuven Meeting on Myocardial Function Imaging 2019-02-07 - 2019-02-09
Academic lecture

Løvstakken, Lasse; Østvik, Andreas; Smistad, Erik. (2019) Machine learning for improved echocardiography. The Artimino Conference on Medical Ultrasound Technology , Nijmegen 2019-06-23 - 2019-06-26
Academic lecture

Alessandro, Ramalli; Rodriguez-Molares, Alfonso; Avdal, Jørgen; D'Hooge, Jan R M; Løvstakken, Lasse. (2019) The effect of high frame rate imaging methods in clinical color flow echocardiography. IEEE International Ultrasonics symposium , Glasgow 2019-10-06 - 2019-10-09
Academic lecture

Leclerc, Sarah; Smistad, Erik; Østvik, Andreas; Cervenansky, Frederic; Espinosa, Florian; Espeland, Torvald. (2019) Deep Learning Segmentation in 2D echocardiography using the CAMUS dataset : Automatic Assessment of the Anatomical Shape Validity. International Conference on Medical Imaging with Deep Learning , London 2019-07-08 - 2019-07-10
Academic lecture

Pasdeloup, David Francis Pierre; Østvik, Andreas; Smistad, Erik; Løvstakken, Lasse. (2019) Retraining strategies for improved generalization of deep neural networks. IEEE International Ultrasonics symposium , Glasgow 2019-10-06 - 2019-10-09
Academic lecture

Løvstakken, Lasse; Østvik, Andreas; Smistad, Erik. (2019) Kunstig intelligens for en mer effektiv og treffsikker ekkokardiografi. Kardiologisk høstmøte 2019-10-24 - 2019-10-26
Academic lecture

Grønli, Thomas; Leinan, Paul Roger; Wigen, Morten Smedsrud; Skjetne, Paal; Dahl, Sigrid Kaarstad; Løvstakken, Lasse. (2019) In vitro validation of ultrasound VFI regularization through rapid data assimilation. 2019 IEEE International Ultrasonics Symposium 2019-10-06 - 2019-10-09
Academic lecture

Salles, Sebastien; Løvstakken, Lasse; Espeland, Torvald; Wigen, Morten Smedsrud; Fadnes, Solveig; Støylen, Asbjørn. (2019) 3D mechanical wave trajectory mapping in the left ventricle using Clutter Filter Wave Imaging. 2019 IEEE International Ultrasonics Symposium 2019-10-06 - 2019-10-09
Academic lecture

Smistad, Erik; Salte, Ivar Mjåland; Østvik, Andreas; Leclerc, Sarah; Bernard, Olivier; Løvstakken, Lasse. (2019) Segmentation of apical long axis, four- and two-chamber views using deep neural networks. IEEE IEEE International Ultrasonics Symposium (IUS) , Glasgow 2019-10-06 - 2019-10-10
Academic lecture

Daae, Annichen Søyland; Wigen, Morten Smedsrud; Løvstakken, Lasse; Støylen, Asbjørn. (2019) Vortex formation during the isovolumetric contraction in the left ventricle. European Association of Cardiovascular Imaging Euro Echo , Wien 2019-12-04 - 2019-12-07
Academic lecture

Grønli, Thomas; Leinan, Paul Roger; Wigen, Morten Smedsrud; Skjetne, Paal; Dahl, Sigrid Kaarstad; Løvstakken, Lasse. (2019) Variational Data Assimilation - Towards Robust Vector Flow Estimation with Ultrasound. Dept. of Heart Disease, Haukeland University Hospital Cardiac Imaging Day 2019 , Bergen 2019-10-18 - 2019-10-18

2018

Academic lecture

Karabiyik, Yücel; Avdal, Jørgen; Ekroll, Ingvild Kinn; Torp, Hans; Løvstakken, Lasse. (2018) Limiting spectral broadening in Pulsed Wave Doppler. Norsk Fysisk Selskap Scandinavian Symposium on Physical Acoustics , Geilo, Norway 2018-01-27 - 2018-01-30
Academic lecture

Grønli, Thomas; Wigen, Morten Smedsrud; Segers, Patrick; Løvstakken, Lasse. (2018) A fast 4D B-spline framework for model-based reconstruction and regularization in vector flow imaging. IEEE IEEE International Ultrasonics Symposium 2018 , Kobe 2018-10-22 - 2018-10-25
Poster

Grønli, Thomas; Wigen, Morten Smedsrud; Segers, Patrick; Løvstakken, Lasse. (2018) A fast 4D B-spline framework for model-based reconstruction and regularization in vector flow imaging. IEEE IEEE International Ultrasonics Symposium 2018 , Kobe 2018-10-22 - 2018-10-25
Poster

Daae, Annichen Søyland; Støylen, Asbjørn; Løvstakken, Lasse; Wigen, Morten Smedsrud. (2018) Initial diastolic vortex formation in the left ventricle relates to the atrioventricular plane motion of the outflow tract. EACVI Euro Echo 2018 , Milano 2018-12-05 - 2018-12-08
Academic lecture

Løvstakken, Lasse; Østvik, Andreas; Smistad, Erik. (2018) Machine learning in echocardiography, can we trust it?. EuroEcho , Milano 2018-12-05 - 2018-12-08
Academic lecture

Smistad, Erik; Østvik, Andreas; Salte, Ivar Mjåland; Leclerc, Sarah; Bernard, Olivier; Løvstakken, Lasse. (2018) Fully automatic real-time ejection fraction and MAPSE measurements in 2D echocardiography using deep neural networks. IEEE IEEE International Ultrasonics Symposium 2018 , Kobe 2018-10-22 - 2018-10-25
Academic lecture

Dietrichson, Fabian Sødal; Smistad, Erik; Østvik, Andreas; Løvstakken, Lasse. (2018) Ultrasound speckle reduction using generative adversial networks. IEEE IEEE International Ultrasonics Symposium 2018 , Kobe 2018-10-22 - 2018-10-25
Poster

Leclerc, Sarah; Smistad, Erik; Grenier, Thomas; Lartizien, Carole; Østvik, Andreas; Espinosa, Florian. (2018) Deep learning applied to multi-structure segmentation in 2D echocardiography: A preliminary investigation of the required database size. IEEE UFFC IEEE International Ultrasonics Symposium 2018 , Kobe 2018-10-22 - 2018-10-25
Academic lecture

Løvstakken, Lasse. (2018) Next generation echocardiography - opportunities and challenges. IEEE IEEE International Ultrasonics Symposium , Kobe 2018-10-22 - 2018-10-24
Academic lecture

Wigen, Morten Smedsrud; Salles, Sebastien; Støylen, Asbjørn; Løvstakken, Lasse. (2018) The continuous cardiac thick-slice acquisition - for simultaneous flow and tissue motion estimation. IEEE IEEE International Ultrasonics Symposium , Kobe 2018-10-22 - 2018-10-24
Poster

Perrot, Vincent; Avdal, Jørgen; Løvstakken, Lasse; Salles, Sebastien; Vray, Didier; Liebgott, Herve. (2018) Spatial and Temporal Adaptive FIR Clutter Filtering. IEEE International Ultrasonics symposium 2018 2018-10-23 - 2018-10-25
Lecture

Mawad, Wadi; Nyrnes, Siri Ann; Fadnes, Solveig; Grønli, Thomas; Mertens, Luc; Løvstakken, Lasse. (2018) cardiac flow dynamics by echocardiography: current and future perspectives. American Society of Echocardiography , Nashville 2018-06-25 - 2018-06-25
Poster

Sælensminde, Magnus; Grønli, Thomas; Segers, Patrick; Nyrnes, Siri Ann; Løvstakken, Lasse. (2018) Intraventricular blood velocity measurements - a comparison between iVFM and blood speckle tracking. IEEE IEEE International Ultrasonics Symposium 2018 , Kobe 2018-10-22 - 2018-10-25
Academic lecture

Østvik, Andreas; Smistad, Erik; Espeland, Torvald; Berg, Erik Andreas Rye; Løvstakken, Lasse. (2018) Automatic functional imaging in echocardiography using deep learning based segmentation and flow estimation. IEEE UFFC IEEE International Ultrasonics Symposium 2018 , Kobe 2018-10-22 - 2018-10-25
Poster

Fiorito, Adrian Meidell; Østvik, Andreas; Smistad, Erik; Leclerc, Sarah; Bernard, Olivier; Løvstakken, Lasse. (2018) Detection of Cardiac Events in Echocardiography using 3D Convolutional Recurrent Neural Networks. IEEE UFFC IEEE International Ultrasonics Symposium 2018 , Kobe 2018-10-22 - 2018-10-25
Academic lecture

Fadnes, Solveig; Salles, Sebastien; Tegnander, Eva; Nyrnes, Siri Ann; Løvstakken, Lasse. (2018) In vivo estimation of myocardial mechanical wave propagation in the fetus. IEEE IEEE International Ultrasonics Symposium , Kobe 2018-10-22 - 2018-10-25
Poster

Østvik, Andreas; Smistad, Erik; Espeland, Torvald; Berg, Erik Andreas Rye; Løvstakken, Lasse. (2018) Automatic Myocardial Strain Imaging in Echocardiography Using Deep Learning. MICCAI 2018, 4th Workshop on Deep Learning in Medical Image Analysis (DLMIA) , Granada 2018-09-16 - 2018-09-20
Academic lecture

Nyrnes, Siri Ann; Fadnes, Solveig; Salles, Sebastien; Løvstakken, Lasse. (2018) High Frame Rate Imaging. American Society of Echocardiography 29th Annual ASE Scientific Sessions , Nashville 2018-06-22 - 2018-06-26
Academic lecture

Østvik, Andreas; Smistad, Erik; Løvstakken, Lasse. (2018) Deep learning for ultrasound image classification and segmentation. Myocardial velocity and deformation imaging , Leuven 2018-02-08 - 2018-02-09
Interview

Næss, Hans Jørn; Løvstakken, Lasse. (2018) Kunstig intelligens utfordrer legene: Best til å tolke røntgenbildene. Kapital Kapital [Business/trade/industry journal] 2018-12-10
Lecture

Salles, Sebastien; Løvstakken, Lasse; Espeland, Torvald; Rodriguez-Molares, Alfonso; Aase, Svein Arne; Støylen, Asbjørn. (2018) 4D mechanical wave velocity mapping using clutter filter wave imaging. Healthy Subjects versus patients . IEEE IUS 2018 2018-10-22 - 2018-10-25

2017

Academic lecture

Wigen, Morten Smedsrud; Rodriguez-Molares, Alfonso; Bjåstad, Tore Grüner; Eriksen, Marius; STENSÆTH, KNUT HAAKON; Løvstakken, Lasse. (2017) In-Vivo 3D Cardiac Vector Flow Imaging – a Comparison Between Ultrasound and Phase-Contrast MRI. IEEE 2017 IEEE International Ultrasonics Symposium , Washington D.C. 2017-09-06 - 2017-09-09
Academic lecture

Wigen, Morten Smedsrud; Løvstakken, Lasse. (2017) 4D cardiac vector flow imaging. The Artimino Conference on Medical Ultrasound Technology , Artimino 2017-06-11 - 2017-06-14
Academic lecture

Fadnes, Solveig; Tegnander, Eva; Nyrnes, Siri Ann; Løvstakken, Lasse. (2017) Vector flow imaging of fetal circulation using diverging waves . 2017 IEEE International Ultrasonics Symposium , Washington D.C. 2017-09-06 - 2017-09-09
Academic lecture

Fadnes, Solveig; Tegnander, Eva; Nyrnes, Siri Ann; Løvstakken, Lasse. (2017) Vector flow imaging of fetal circulation - an in vivo study . The Artimino Conference on Medical Ultrasound Technology , Artimino 2017-06-11 - 2017-06-14
Lecture

Mertens, Luc; Nyrnes, Siri Ann; Løvstakken, Lasse. (2017) Blood Speckle Imaging - Initial experience in children. American Society of Echocardiography ASE 2017 , Baltimore 2017-06-02 - 2017-06-06
Academic lecture

Nyrnes, Siri Ann; Fadnes, Solveig; Mertens, Luc; Løvstakken, Lasse. (2017) Blood Speckle Tracking - New insight to Pediatric Cardiology?. American Society of Echocardiography ASE 2017 , Baltimore 2017-06-02 - 2017-06-06
Academic lecture

Mawad, Wadi; Løvstakken, Lasse; Fadnes, Solveig; Mertens, Luc; Nyrnes, Siri Ann. (2017) Right ventricular flow dynamics in dilated right ventricles. Energy loss estimation based on blood speckle tracking echocardiography in children. American Society of Echocardiography ASE 2017 , Baltimore 2017-06-02 - 2017-06-06
Poster

Østvik, Andreas; Smistad, Erik; Aase, Svein Arne; Haugen, Bjørn Olav; Løvstakken, Lasse. (2017) Real-Time Classification of Standard Cardiac Views in Echocardiography using Neural Networks. IEEE International Ultrasonics Symposium , Washington DC 2017-09-06 - 2017-09-09
Academic lecture

Ekroll, Ingvild Kinn; Avdal, Jørgen; Salles, Sebastien; Fadnes, Solveig; Rodriguez-Molares, Alfonso; Løvstakken, Lasse. (2017) Quantitative ultrasound imaging (at NTNU) - cardiovascular applications. 2017 Workshop on cardiovascular applications of medical ultrasound imaging 2017-12-07 - 2017-12-07
Poster

Grønli, Thomas; Swillens, Abigail; Segers, Patrick; Løvstakken, Lasse. (2017) Real-time Assimilation and Regularization of Ultrasound Blood Velocity Measurements Using Smoothed Particle Hydrodynamics. IEEE 2017 IEEE International Ultrasonics Symposium , Washington, D.C 2017-09-06 - 2017-09-09
Lecture

Fadnes, Solveig; Wigen, Morten Smedsrud; Grønli, Thomas; Nyrnes, Siri Ann; Løvstakken, Lasse. (2017) Cardiac vector flow imaging. KU Leuven Myocardial Velocity & Deformation Imaging , Leuven 2017-02-09 - 2017-02-10
Academic lecture

Løvstakken, Lasse. (2017) Ultrafast ultrasound blood flow imaging - current and future perspectives. SPIE medical imaging 2017-02-14 - 2017-02-16
Academic lecture

Grønli, Thomas; Løvstakken, Lasse. (2017) Modeling and data assimilation for improved blood velocity estimates. The Artimino Conference on Medical Ultrasound Technology , Artimino 2017-06-11 - 2017-06-14
Lecture

Salles, Sebastien; Løvstakken, Lasse. (2017) 3D myocardial mechanical wave measurements using high frame rate ultrasound imaging and Clutter filter wave imaging: towards a 3D myocardial elasticity mapping. IEEE Ultrasonics Symposium 2017 2017-09-06 - 2017-09-09
Poster

Salles, Sebastien; Løvstakken, Lasse; Torp, Hans. (2017) Clutter filter wave imaging (CFWI): a new way to visualize and detect mechanical waves propagation. IEEE Ultrasonics Symposium 2017 2017-09-06 -
Poster

Smistad, Erik; Østvik, Andreas; Haugen, Bjørn Olav; Løvstakken, Lasse. (2017) 2D Left ventricle segmentation using deep learning. International Ultrasonics Symposium (IUS) , Washington DC 2017-09-06 - 2017-09-09

2016

Academic lecture

Karabiyik, Yücel; Avdal, Jørgen; Ekroll, Ingvild Kinn; Torp, Hans; Løvstakken, Lasse. (2016) Data Adaptive 2-D Tracking Doppler. IEEE IEEE International Ultrasonics Symposium , Tours, France 2016-09-18 - 2016-09-21
Lecture

Karabiyik, Yucel; Avdal, Jørgen; Ekroll, Ingvild Kinn; Torp, Hans; Løvstakken, Lasse. (2016) Data Adaptive 2-D Tracking Doppler. IEEE International Ultrasonics symposium 2016-09-21 - 2016-09-21
Academic lecture

Wigen, Morten Smedsrud; Løvstakken, Lasse. (2016) 1In vivo three-dimensional intra-cardiac vector flow imaging using a 2D matrix array transducer. IEEE International Ultrasonics Symposium 2016-09-18 - 2016-09-21
Academic lecture

Fadnes, Solveig; Nyrnes, Siri Ann; Wigen, Morten Smedsrud; Tegnander, Eva; Løvstakken, Lasse. (2016) Detailed flow visualization in fetal and neonatal hearts using 2-D speckle tracking. IEEE International Ultrasonics Symposium 2016-09-18 - 2016-09-21
Academic lecture

Høgenes, Jakob; Wigen, Morten Smedsrud; Nyrnes, Siri Ann; Segers, Patrick; Swillens, Abigail; Løvstakken, Lasse. (2016) Model-based estimation of intra-cardiac blood flow velocities using an unscented Kalman filter. IEEE International Ultrasonics Symposium 2016-09-18 - 2016-09-21
Academic lecture

Grønli, Thomas; Smistad, Erik; Nyrnes, Siri Ann; Gomez, Alberto; Løvstakken, Lasse. (2016) Reconstruction of In Vivo Flow Velocity Fields Based On a Rapid Ultrasound Image Segmentationand B-spline Regularization Framework. IEEE International Ultrasonics Symposium 2016-09-18 - 2016-09-21
Poster

Avdal, Jørgen; Ekroll, Ingvild Kinn; Løvstakken, Lasse; Torp, Hans Garman. (2016) Combined 2D Vector and Tracking Doppler for improved blood flow quantification. International ultrasonics symposium 2016-09-18 - 2016-09-21
Popular scientific lecture

Ekroll, Ingvild Kinn; Iversen, Daniel Høyer; Wigen, Morten Smedsrud; Khan, Naiad Hossain; Prieur, Fabrice Jean Gabriel; Løvstakken, Lasse. (2016) Presentation of some CIUS projects. Technoport 2016 2016-03-08 - 2016-03-09
Academic lecture

Løvstakken, Lasse. (2016) 3D cardiac flow imaging - towards ultrafast. IEEE Symposium on Biomedical Imaging (ISBI) , Praha 2016-04-13 - 2016-04-16

2015

Academic lecture

Karabiyik, Yücel; Ekroll, Ingvild Kinn; Avdal, Jørgen; Torp, Hans; Løvstakken, Lasse. (2015) Adaptive Spectral Estimation Methods in Color Flow Imaging. IEEE IEEE International Ultrasonics Symposium , TAIPEI, TAIWAN 2015-10-21 - 2015-10-24
Academic lecture

Karabiyik, Yücel; Ekroll, Ingvild Kinn; Avdal, Jørgen; Torp, Hans; Løvstakken, Lasse. (2015) Adaptive Spectral Estimation Methods in Color Flow Imaging. Artimino The Artimino Conference on Medical Ultrasound Technology , Sweden 2015-07-06 - 2015-10-06
Academic lecture

Iversen, Daniel Høyer; Lindseth, Frank; Unsgård, Geirmund; Torp, Hans; Løvstakken, Lasse. (2015) Improved quality of freehand 3-D ultrasound color flow imaging by multi-angle compounding. IEEE International Ultrasonics symposium 2015-10-21 - 2015-10-24
Academic lecture

Løvstakken, Lasse; Wigen, Morten Smedsrud; Fadnes, Solveig; Nyrnes, Siri Ann. (2015) 3D Cardiac Flow Imaging. Artimino 2015-06-07 - 2015-06-10
Academic lecture

Fadnes, Solveig; Nyrnes, Siri Ann; Løvstakken, Lasse. (2015) Plane wave imaging of congenital heart defects from fetal to newborn stage. Artimino 2015-06-07 - 2015-06-10
Academic lecture

Wigen, Morten Smedsrud; Fadnes, Solveig; Løvstakken, Lasse. (2015) 3D vector flow imaging. Artimino 2015-06-07 - 2015-06-10
Poster

Ekroll, Ingvild Kinn; Avdal, Jørgen; Swillens, Abigail Emily; Torp, Hans; Løvstakken, Lasse. (2015) Multi-angle imaging for robust vector Doppler and coherent compounding. IEEE International Ultrasonics symposium 2015-10-21 - 2015-10-24
Academic lecture

Nyrnes, Siri Ann; Løvstakken, Lasse. (2015) Kan ny ultralydteknologi gi økt kunnskap om barnehjerter?. St. Olavs Hospital og Det medisinske fakultet NTNU Fredagsforelesning ved St. Olavs Hospital , Trondheim 2015-10-30 - 2015-10-30
Academic lecture

Løvstakken, Lasse. (2015) Ultrasound imaging and quantification of cardiovascular disease - Present and future perspectives. NTNU 6th Seminar on Exercise in Medicine , Trondheim 2015-12-17 - 2015-12-18
Academic lecture

Løvstakken, Lasse; Fadnes, Solveig; Nyrnes, Siri Ann. (2015) Flow mapping in congenital heart disease. 10th European Echocardiography Course on Congenital Heart Disease , Leuven 2015-10-14 - 2015-10-17
Lecture

Rodriguez-Molares, Alfonso; Løvstakken, Lasse; Denarie, Bastien; Torp, Hans. (2015) Busting the ghost in coherent plane-wave imaging. IEEE International Ultrasonics Symposium 2015 , Taipei 2015-10-21 - 2015-10-24
Academic lecture

Løvstakken, Lasse; Nyrnes, Siri Ann. (2015) Contrast-less, angle-independent flow mapping in the neonate and fetal circulation – technical insight and clinical examples. Myocardial Velocity & Deformation Imaging 2015-02-05 - 2015-02-06
Lecture

Løvstakken, Lasse; Nyrnes, Siri Ann. (2015) Nye ultralydbilder av blodstrøm kan gi bedre forståelse av hjertesykdom. St. Olavs Hospital og Det medisinske fakultet NTNU Fredagsforelesning ved St. Olavs Hospital , Trondheim 2015-04-17 - 2015-04-17
Academic lecture

Nyrnes, Siri Ann; Løvstakken, Lasse. (2015) Flow speckle tracking provides new information of complex blood flow in congenital heart disease. Assoc. for European Paediatric and Congenital Cardiology 49th Annual Meeting of the Association for European Paediatric and Congenital Cardiology, AEPC , Prague 2015-05-20 - 2015-05-23

2014

Interview

Sørland, Kaia; Løvstakken, Lasse. (2014) Stjerneforskning i startfasen. Dusken.no Dusken.no [Internet] 2014-09-30
Interview

Midling, Anne Sliper; Løvstakken, Lasse; Nyrnes, Siri Ann. (2014) Lager værvarsel for barnehjertet. Gemini.no Gemini.no [Internet] 2014-08-20
Interview

Midling, Anne Sliper; Løvstakken, Lasse; Nyrnes, Siri Ann. (2014) Lager værvarsel for barnehjertet. Adressa.no Adressa.no [Internet] 2014-08-21
Interview

Sørland, Kaia; Løvstakken, Lasse. (2014) Stjerneforskning i startfasen. Under Dusken Under Dusken [Newspaper] 2014-09-30
Interview

Midling, Anne Sliper; Løvstakken, Lasse; Nyrnes, Siri Ann. (2014) Bruker ultralyd for å finne feil i barnehjertet. Forskning.no Forskning.no [Internet] 2014-08-21
Poster

Kiss, Gabriel; Iversen, Daniel Høyer; Standal, Øyvind Krøvel-Velle; Rau, Jochen; Torp, Hans; Løvstakken, Lasse. (2014) A visualization tool for improved assessment and follow-up with ultrasound. IEEE Ultrasonics Symposium , Chicago 2014-09-03 - 2014-09-06
Interview

Løvstakken, Lasse; Nyrnes, Siri Ann; Toftaker, Jøte. (2014) Ny ultralydteknologi kan redde liv. NRK Dagsrevyen NRK Dagsrevyen [TV] 2014-08-19
Interview

Hernes, Toril A. Nagelhus; Løvstakken, Lasse; Måsøy, Svein-Erik; Torp, Hans. (2014) Jubler over forskningsseier i Trondheim. Adresseavisen Adresseavisen [Newspaper] 2014-11-21
Interview

Løvstakken, Lasse. (2014) Ny ultralydteknologi kan redde flere liv. NRK NRK [Internet] 2014-08-19
Interview

Løvstakken, Lasse. (2014) New way of visualizing young hearts can save lives. Science Nordic Science Nordic [Internet] 2014-08-28
Interview

Løvstakken, Lasse. (2014) Ny ultralydmetode testes på spedbarn. NRK midtnytt NRK midtnytt [TV] 2014-08-19
Academic lecture

Løvstakken, Lasse. (2014) Ultrasound Imaging of the Heart at Very High Frame Rates. IEEE IEEE International Symposium on Biomedical Imaging , Beijing 2014-04-29 - 2014-05-02
Lecture

Løvstakken, Lasse. (2014) State-of-the-art ultrasound blood flow imaging. Universitetet i Bergen Medviz seminar , Bergen 2014-03-07 - 2014-03-07

2013

Interview

Nyrnes, Siri Ann; Løvstakken, Lasse. (2013) Hjertebank på torget. VG - Bilag: "Forskningsdagene" VG - Bilag: "Forskningsdagene" [Newspaper] 2013-09-17
Academic lecture

Løvstakken, Lasse. (2013) Vortex Flow Imaging in Pediatric Heart Disease. Scientific sessions of the American Soceity of Echocardiography 2013-06-29 - 2013-07-04
Interview

Nyrnes, Siri Ann; Fadnes, Solveig; Løvstakken, Lasse. (2013) Bedre diagnose for hjertebarn. TV2 Lørdagsmagasinet og TV2 Nyhetene TV2 Lørdagsmagasinet og TV2 Nyhetene [TV] 2013-03-30
Poster

Denarie, Bastien; Tangen, Thor Andreas; Ekroll, Ingvild Kinn; Rolim, Natale Pinheiro Lage; Torp, Hans; Bjåstad, Tore. (2013) Coherent plane wave compounding for very high frame rate ultrasonography of rapidly moving targets. Medim 5th National PhD Conference in Medical Imaging , Trømsø 2013-10-03 - 2013-10-04
Poster

Vallee, Emilie Claire Yvonne; Ekroll, Ingvild Kinn; Denarie, Bastien; Løvstakken, Lasse; Håberg, Asta. (2013) Localizing brain activity with functional Ultrasound Imaging: a comparison with fMRI. 5th National PhD conference in Medical Imaging 2013-10-02 - 2013-10-03
Poster

Nyrnes, Siri Ann; Løvstakken, Lasse; Døhlen, Gaute; Skogvoll, Eirik; Torp, Hans; Skjærpe, Terje. (2013) Transesophageal echocardiography with Blood Flow Imaging during Atrial Septal Defect closure: A comparison with the current references. Association for European Paediatric and Congenital Cardiol. AEPC 2013 , London 2013-05-22 - 2013-05-25

2012

Academic lecture

Iversen, Daniel Høyer; Lindseth, Frank; Unsgård, Geirmund; Torp, Hans; Løvstakken, Lasse. (2012) Model-based correction of angle-dependencies in navigated 3-D flow imaging during neurosurgical interventions. Nansen Neuroscience Network meeting 2012-05-29 - 2012-05-29
Poster

Fredriksen, Tonje Dobrowen; Ekroll, Ingvild Kinn; Løvstakken, Lasse; Torp, Hans. (2012) 2D Tracking Doppler: A New Method to Limit Spectral Broadening in Pulsed Wave Doppler. IEEE Ultrasonics Symposium 2012-10-07 - 2012-10-10
Poster

Fadnes, Solveig; Nyrnes, Siri Ann; Swillens, Abigail; Torp, Hans; Løvstakken, Lasse. (2012) Shunt quantification in congenital heart disease based on two-dimensional speckle tracking. IEEE IUS 2012 IEEE International Ultrasonics Symposium , Dresden 2012-10-07 - 2012-10-10
Academic lecture

Fadnes, Solveig; Nyrnes, Siri Ann; Swillens, Abigail; Torp, Hans; Løvstakken, Lasse. (2012) Shunt quantification in congenital heart disease based on two-dimensional speckle tracking. IEEE IUS 2012 IEEE International Ultrasonics Symposium , Dresden 2012-10-07 - 2012-10-10
Academic lecture

Fadnes, Solveig; Nyrnes, Siri Ann; Swillens, Abigail; Torp, Hans; Løvstakken, Lasse. (2012) Shunt quantification in congenital heart disease based on two-dimensional speckle tracking. MedIm – Norwegian Research School in Medical Imaging 4th PhD Conference in Medical Imaging , Trondheim 2012-11-28 - 2012-11-29
Academic lecture

Ekroll, Ingvild Kinn; Dahl, Torbjørn; Torp, Hans; Løvstakken, Lasse. (2012) In vivo Vector Flow Imaging With Retrospective Pulsed Wave Doppler. IEEE, International ultrasonics symposium 2012 2012-10-07 - 2012-10-10
Academic lecture

Løvstakken, Lasse. (2012) 2-D blood flow analysis without Doppler. Myocardial velocity and deformation imaging 2012-02-09 - 2012-02-10
Poster

Iversen, Daniel Høyer; Lindseth, Frank; Torp, Hans; Løvstakken, Lasse. (2012) Improved 3-D reconstruction of vascular flow based on plane wave imaging. IEEE ultrasonics conference 2012-10-07 - 2012-10-09

2011

Academic lecture

Ekroll, Ingvild Kinn; Løvstakken, Lasse; Torp, Hans. (2011) Improved spectral Doppler in medical ultrasound based on spatiotemporal adaptive signal processing. 2011 Joint National Ph.D. Conference in Medical Imaging and MedViz Conference 2011-01-17 - 2011-01-18
Interview

Nyrnes, Siri Ann; Løvstakken, Lasse; Skogvoll, Eirik; Torp, Hans; Haugen, Bjørn Olav. (2011) Kan redde flere nyfødte med hjertefeil. NRK NRK [Internet] 2011-01-05
Interview

Nyrnes, Siri Ann; Løvstakken, Lasse; Skogvoll, Eirik; Torp, Hans; Haugen, Bjørn Olav. (2011) Kan redde nyfødte med hjertefeil. Forskning.no Forskning.no [Internet] 2011-01-05
Interview

Nyrnes, Siri Ann; Løvstakken, Lasse; Skogvoll, Eirik; Torp, Hans; Haugen, Bjørn Olav. (2011) Lettere å finne hjertefeil. Barnehage.no - Nyheter Barnehage.no - Nyheter [Internet] 2011-01-05
Academic lecture

Løvstakken, Lasse. (2011) High frame rate color-Doppler imaging - flow patterns without contrast. Katholeike Universiteit Leuven Myocardial velocity and deformation imaging , Leuven 2011-02-10 - 2011-02-11
Academic lecture

Iversen, Daniel Høyer; Lindseth, Frank; Unsgård, Geirmund; Torp, Hans; Løvstakken, Lasse. (2011) 3-D flow imaging in neurosurgery -Improved flow detection and quantification of neurovascular flow. Medical Imaging Medical Imaging , Oslo 2011-11-21 - 2011-11-22
Academic lecture

Løvstakken, Lasse; Nyrnes, Siri Ann; Haugen, Bjørn Olav; Torp, Hans. (2011) Angle-independent quantification of complex flow patterns in congenital heart disease. IEEE International Ultrasonics Symposium , Orlando 2011-10-18 - 2011-10-21
Academic lecture

Løvstakken, Lasse. (2011) Teknikker innen Doppleravbildning. Norsk forening for ultralyddiagnostikk Årsmøte for norsk forening for ultralyddiagnostikk , Trondheim 2011-03-30 - 2011-04-04
Academic lecture

Alnes, Solveig Søvik; Løvstakken, Lasse. (2011) Multi-dimensional flow quantification of cardiac flow patterns. The Artimino Conference on Medical Ultrasound Technology , Artimino 2011-06-26 - 2011-06-29
Poster

Ekroll, Ingvild Kinn; Swillens, Abigail; Segers, Patrick; Torp, Hans; Løvstakken, Lasse. (2011) Simultanous quantification of flow and tissue velocities based on multi-angle plane wave imaging with extended velocity range. IEEE International Ultrasonics Symposium 2011 (IUS 2011) 2011-10-17 - 2011-10-21
Poster

Alnes, Solveig Søvik; Swillens, Abigail; Segers, Patrick; Torp, Hans; Løvstakken, Lasse. (2011) Clutter filtering issues in speckle tracking for two-dimensional blood velocity estimation. IEEE IEEE International Ultrasonics Symposium 2011 , Orlando 2011-10-18 - 2011-10-21
Academic lecture

Alnes, Solveig Søvik; Løvstakken, Lasse. (2011) Biomechanical simulation and multi-dimensional flow imaging of cardiac flow. The 2nd National PhD conference in Medical Imaging and the Annual MedViz conference , Bergen 2011-01-17 - 2011-01-18
Poster

Iversen, Daniel Høyer; Lindseth, Frank; Unsgård, Geirmund; Torp, Hans; Løvstakken, Lasse. (2011) Model-based correction of angle-dependencies in navigated3-D flow imaging during neurosurgical interventions. IEEE ultrasonics conference 2011 , Orlando 2011-10-18 - 2011-10-21
Poster

Denarie, Bastien; Bakstad, Ole Jørgen; Løvstakken, Lasse; Bjåstad, Tore; Torp, Hans. (2011) FieldSim3: a unified ultrasound simulation platform. 3rd National PhD Conference in Medical Imaging 2011-11-21 - 2011-11-22
Academic lecture

Løvstakken, Lasse; Nyrnes, Siri Ann; Haugen, Bjørn Olav; Torp, Hans. (2011) Latest technology for 2D blood flow analysis. Euroecho & other Imaging Modalities , Budapest 2011-12-07 - 2011-12-10
Poster

Nyrnes, Siri Ann; Løvstakken, Lasse; Torp, Hans; Haugen, Bjørn Olav. (2011) Flow speckle tracking for detailed visualization of flow patterns in neonates with congenital heart defects. European association of echocardiography Euroecho & other Imaging Modalities 2011 , Budapest 2011-12-07 -
Interview

Nyrnes, Siri Ann; Løvstakken, Lasse; Haraldseth, Olav. (2011) Norwegian Research Centre Offers Hope For Tiny Hearts. MediLexicon MediLexicon [Internet] 2011-03-17
Poster

Nyrnes, Siri Ann; Løvstakken, Lasse; Torp, Hans; Haugen, Bjørn Olav. (2011) Change in left ventricular vortex flow before and after surgery for coarctation of the aorta in an infant shown with plane wave imaging and flow speckle tracking. AEPC 45th Annual Meeting Association for European Paediatric Cardiology , Granada 2011-05-18 - 2011-05-21
Interview

Nyrnes, Siri Ann; Løvstakken, Lasse. (2011) New Hope for Tiny Hearts. ScienceDaily ScienceDaily [Internet] 2011-04-04
Interview

Nyrnes, Siri Ann; Løvstakken, Lasse; Haraldseth, Olav. (2011) Norwegian Research Centre Offers Hope For Tiny Hearts. eBioNews eBioNews [Internet] 2011-03-17
Interview

Nyrnes, Siri Ann; Løvstakken, Lasse; Haraldseth, Olav. (2011) Norwegian Research Centre Offers Hope For Tiny Hearts. Medical News Today Medical News Today [Internet] 2011-03-17
Interview

Nyrnes, Siri Ann; Løvstakken, Lasse; Haraldseth, Olav. (2011) Norwegian research centre offers hope for tiny hearts. Scientific Computing Scientific Computing [Internet] 2011-04-04

2010

Academic lecture

Løvstakken, Lasse. (2010) Potential of ultrafast flow imaging. MI Lab day 2010-01-18 - 2010-01-18
Poster

Swillens, Abigail Emily; De Groote, Joris; Vierendeels, Jan; Løvstakken, Lasse; Segers, Patrick. (2010) Improving ultrasonic imaging of the vascular wall and blood flow using a multiphysics simulation tool integrating fluid-structure interaction and ultrasound simulations. IEEE UFFC IEEE International Ultrasonics Symposium , San Diego 2010-10-11 - 2010-10-14
Academic lecture

Swillens, Abigail Emily; Segers, Patrick; Løvstakken, Lasse. (2010) A combined speckle tracking and phase-shift estimation approach for 2D blood flow imaging in the carotid bifurcation. IEEE UFFC IEEE International Ultrasonics Symposium 2010-10-11 - 2010-10-14
Academic lecture

Marloes, De Witte; Swillens, Abigail Emily; Nordgaard, Håvard B.; Løvstakken, Lasse; Van Loo, D.; Trachet, Bram. (2010) Numerical simulation of the blood flow in a coronary LIMA-to-LAD bypass. 9th Belgian Day on Biomedical Engineering 2010-11-26 - 2010-11-26
Academic lecture

Løvstakken, Lasse; Swillens, Abigail Emily; Segers, Patrick; Nordgaard, Håvard B.. (2010) Impact of competitive flow on wall shear stress in coronary surgery: Computational fluid dynamics of a LIMA-LAD anastomosis in a porcine model. Erasmus MC Biomechanics in vascular biology and cardiovascular disease , Rotterdam 2010-04-15 - 2010-04-16
Academic lecture

Løvstakken, Lasse; Torp, Hans. (2010) Extended Velocity Range in Color Flow Imaging using Parallel Receive Beamforming. IEEE UFFC IEEE International Ultrasonics Symposium , San Diego 2010-10-11 - 2010-10-14
Academic lecture

Nordgaard, Håvard B.; Swillens, Abigail Emily; Nordhaug, Dag Ole; Kirkeby-Garstad, Idar; Van Loo, D.; Vitale, Nicola. (2010) Impact of competitive flow on wall shear stress in coronary surgery: Computational fluid dynamics of a LIMA-LAD anastomosis in a porcine model. Erasmus MC Biomechanics in vascular biology and cardiovascular disease , Rotterdam 2010-04-15 - 2010-04-16
Academic lecture

Løvstakken, Lasse. (2010) Recent advances in blood flow imaging with ultrasound. Norsk forening for ultralyddiagnostikk (NFUD) NFUD ultralydsymposium , Lillehammer 2010-04-21 - 2010-04-23
Academic lecture

Løvstakken, Lasse. (2010) Ny teknologi - ultralyd måler blodstrøm. Fagdager ved St. Olav 2010-06-10 - 2010-06-11
Academic lecture

Løvstakken, Lasse. (2010) Angle-independent flow imaging using plane-waves and parallel receive beamforming. Society for Medical Innovation and Technology International Conference of the Society for Medical Innovation and Technology , Trondheim 2010-09-02 - 2010-09-04

2009

Academic lecture

Nyrnes, Siri Ann; Løvstakken, Lasse; Skogvoll, Eirik; Torp, Hans; Haugen, Bjørn Olav. (2009) Gir ny ultralydmetode bedre avbilding av lungeveneblodstrøm hos nyfødte?. Norsk Cardiologisk Selskap Høstmøte i ekkokardiografi 2009 , Tønsberg 2009-10-16 - 2009-10-17
Academic lecture

Solheim, Ole; Selbekk, Tormod; Løvstakken, Lasse; Tangen, Geir Arne; Solberg, Ole Vegard; Johansen, Tonni Franke. (2009) Ultralydnavigert hypofysekirurgi. Helse Midt-Norge Midt-Norsk Regionmøte i Endokrinologi , Stjørdal 2009-01-15 - 2009-01-16
Academic lecture

Solheim, Ole; Selbekk, Tormod; Løvstakken, Lasse; Tangen, Geir Arne; Solberg, Ole Vegard; Johansen, Tonni Franke. (2009) Intrasellar ultrasound in transsphenoidal surgery. European Association of Neurosurgical Societies EANS Annual Meeting 2009 , Marseille 2009-03-27 - 2009-03-31
Academic lecture

Nyrnes, Siri Ann; Løvstakken, Lasse; Skogvoll, Eirik; Torp, Hans; Haugen, Bjørn Olav. (2009) Does a new ultrasound flow modality improve visualisation of neonatal pulmonary veins?. ICMS (http://www.icms.net.au/) 5th World Congress of Paediatric Cardiology and Cardiac Surgery , Cairns 2009-06-21 - 2009-06-26
Academic lecture

Løvstakken, Lasse; Bjåstad, Tore Grüner; Hergum, Torbjørn; Kirkhorn, Johan; Nyrnes, Siri Ann; Torp, Hans. (2009) Real-time high frame rate flow imaging using plane-waves and parallel receive beamforming – an in vivo investigation. IEEE IEEE International Ultrasonics Symposium , Roma 2009-09-20 - 2009-09-23
Academic lecture

Torp, Hans; Løvstakken, Lasse. (2009) Estimation and Imaging of Blood Flow Velocity. IEEE IEEE International Ultrasonics Symposium , Roma 2009-09-20 - 2009-09-23
Academic lecture

Swillens, Abigail; Segers, Patrick; Torp, Hans; Løvstakken, Lasse. (2009) Two-dimensional flow velocity estimation in the carotid bifurcation: a study of crossed-beam vector Doppler and speckle tracking using computational fluid dynamics. IEEE IEEE International Ultrasonics Symposium , Roma 2009-09-20 - 2009-09-23
Poster

Nyrnes, Siri Ann; Løvstakken, Lasse; Torp, Hans. (2009) Plane wave imaging for high frame rate flow visualisation in neonates with congenital heart disease. European Society of Cardiology Euroecho 2009 , Madrid 2009-12-09 - 2009-12-12

2008

Academic lecture

Måsøy, Svein-Erik; Løvstakken, Lasse. (2008) New ultrasonic techniques for decompression evaluation. Group of Baromedicine and environmental physiology, NTNU The future of Diving: 100 Years of Haldane and Beyond , Trondheim 2008-12-18 - 2008-12-19
Academic lecture

Solheim, Ole; Selbekk, Tormod; Tangen, Geir Arne; Løvstakken, Lasse; Solberg, Ole Vegard; Johansen, Tonni Franke. (2008) Høyoppløselig, intrasellær ultralyd ved transsfenoidal hypofysekirurgi - tidlige erfaringer. Norsk Kirurgisk Forening Kirurgisk Høstmøte 2008 , Holmenkollen Park Hotell, Oslo 2008-11-21 - 2008-11-22
Academic lecture

Nordgaard, Håvard B.; Nordhaug, Dag Ole; Løvstakken, Lasse; Kirkeby-Garstad, Idar; Vitale, Nicola. (2008) Transit-tid flowmåling og epikardiell ultralyd ved konkurrerende flow og stenose i LIMA – LAD anastomose. Midt-Norsk kardiologisk forum 2008 , Trondheim 2008-11-21 -
Academic lecture

Nordgaard, Håvard B.; Nordhaug, Dag Ole; Kirkeby-Garstad, Idar; Løvstakken, Lasse; Vitale, Nicola; Haaverstad, Rune. (2008) Different flow patterns due to competitive flow or stenosis in the LIMA-LAD anastomosis assessed by transit-time flowmetry in the pig. European Association for Cardio-Thoracic Surgery EACTS 22nd Annual Meeting. , Lisbon 2008-09-13 - 2008-09-17
Academic lecture

Nordgaard, Håvard B.; Nordhaug, Dag Ole; Kirkeby-Garstad, Idar; Løvstakken, Lasse; Vitale, Nicola; Haaverstad, Rune. (2008) Transit-time flow measurements in the LIMA graft. Impact of competitive flow and stenosis of the anastomosis in a porcine model. The Scandinavian Society for Research in Cardiothoracic Surg SSRCTS 18th Annual Meeting , Geilo 2008-02-07 - 2008-02-09
Academic lecture

Nordgaard, Håvard B.; Nordhaug, Dag Ole; Kirkeby-Garstad, Idar; Løvstakken, Lasse; Vitale, Nicola; Haaverstad, Rune. (2008) Assessment of competitive flow and stenosis of the LIMA LAD anastomosis with transit-time flowmetry and epicardial ultrasound in a porcine model. Scandinavian Association for Thoracic Surgery SATS 57th Annual Meeting , Copenhagen 2008-08-21 - 2008-08-23
Academic lecture

Nordgaard, Håvard B.; Nordhaug, Dag Ole; Kirkeby-Garstad, Idar; Løvstakken, Lasse; Vitale, Nicola; Haaverstad, Rune. (2008) Kan konkurrerende flow adskilles fra stenose i en LIMA – LAD anastomose med transit-tid blodstrømsmåling og høyfrekvent ultralyd avbildning?. Norsk kirurgisk forening Kirurgisk høstmøte, Norsk thoraxkirurgisk forening , Oslo 2008-10-20 - 2008-10-24
Academic lecture

Løvstakken, Lasse; Swillens, Abigail. (2008) Simulering av blodstrømsavbildning med ultralyd basert på computational fluid dynamics. NFA - Norsk forening for automasjon Medisinsk Teknologi 2008 , Trondheim 2008-05-07 - 2008-05-08
Academic lecture

Torp, Hans; Løvstakken, Lasse. (2008) Estimation and Imaging of Tissue Motion and Blood Velocity. 2008 IEEE International Ultrasonics Symposium - Short course , Beijing 2008-11-02 - 2008-11-05
Poster

Frijlink, Martijn Egbert; Løvstakken, Lasse; Torp, Hans. (2008) Fundamental and Third Harmonic Operation of a Medical Phased Array Transducer. Ultrasonics Symposium , Beijing 2008-11-02 - 2008-11-05
Poster

Frijlink, Martijn Egbert; Løvstakken, Lasse; Torp, Hans. (2008) Fundamental and Third Harmonic Operation of a Medical Phased Array Transducer. Medical Imaging Laboratory Day , Trondheim 2008-11-20 -
Poster

Swillens, Abigail; Løvstakken, Lasse; Torp, Hans; Segers, Patrick. (2008) A comparison of multidimensional flow estimation techniques using computational fluid dynamics: speckle tracking versus vector Doppler. IEEE International Ultrasonics Symposium , Beijing 2008-11-02 - 2008-11-05
Poster

Løvstakken, Lasse; Ibrahim, Khalid Shaker Oklah; Vitale, Nicola; Henriksen, Siri; Kirkeby-Garstad, Idar; Torp, Hans. (2008) Blood Flow Imaging - A new 2-D ultrasound modality for enhanced intraoperative visualization of blood flow patterns in coronary anastomoses. Medical Imaging Laboratory Day , Trondheim 2008-11-20 -
Poster

Nyrnes, Siri Ann; Løvstakken, Lasse; Torp, Hans; Haugen, Bjørn Olav. (2008) The coronary arteries visualised by a new ultrasound flow modality. European society of cardiology EuroEcho 2008 , Lyon 2008-12-13 - 2008-12-13

2007

Poster

Løvstakken, Lasse; Yu, Alfred C. H.; Torp, Hans. (2007) In Vivo Investigation of Filter order Influence in Eigen-based Clutter Filtering for Color Flow Imaging. IEEE IEEE International Ultrasonics Symposium , New York 2007-10-28 - 2007-10-31
Poster

Oddershede, Niels; Løvstakken, Lasse; Torp, Hans. (2007) Multi-dimensional spectrum analysis for 2-D vector velocity estimation. IEEE IEEE International Ultrasonics Symposium , New York 2007-10-28 - 2007-10-31
Poster

Løvstakken, Lasse; Orderud, Fredrik; Torp, Hans. (2007) Real-time Indication of Acoustic Window for Phased-Array Transducers in Ultrasound Imaging. IEEE IEEE International Ultrasonics Symposium , New York 2007-10-28 - 2007-10-31
Poster

Yu, Alfred C. H.; Løvstakken, Lasse. (2007) Eigen-Based Clutter Filters for Color Flow Imaging: Single-Ensemble vs. Multi-Ensemble Approaches. IEEE IEEE International Ultrasonics Symposium , New York 2007-10-28 - 2007-10-31
Poster

Nyrnes, Siri Ann; Løvstakken, Lasse; Torp, Hans; Haugen, Bjørn Olav. (2007) A new ultrasound modality to visualise atrial septal defect flow in children. European society of cardiology EuroEcho 2007 , Lisboa 2007-12-08 - 2007-12-08

2006

Academic lecture

Løvstakken, Lasse; Torp, Hans. (2006) Blood Flow Imaging (BFI) – En ny metode for visualisering av 2D blodstrømsforhold med ultralyd. Norsk Forening for Ultralyddiagnostikk (NFUD) Årsmøte for Norsk Forening for Ultralyddiagnostikk (NFUD) , Trondheim 2006-04-27 - 2006-04-29
Poster

Løvstakken, Lasse; Tangen, Thor Andreas; Bjærum, Steinar; Torp, Hans. (2006) Optimum velocity estimation in ultrasound color flow imaging in presence of clutter noise. IEEE, UFFC IEEE International ultrasonics symposium , Vancouver 2006-10-03 - 2006-10-06

2005

Poster

Amundsen, Brage H.; Løvstakken, Lasse; Samstad, Stein; Torp, Hans; Slørdahl, Stig Arild. (2005) Blood Flow Imaging by ultrasound– improved visualisation of flow direction in carotid stenoses using speckle tracking. European Society of Cardiology Annual Congress of European Society of Cardiology 2005 , Stockholm 2005-09-03 - 2005-09-07
Poster

Amundsen, Brage H.; Løvstakken, Lasse; Samstad, Stein; Torp, Hans; Slørdahl, Stig Arild. (2005) Ny ultralydmetode for bedre framstilling av flowretning i carotis-stenoser: Blood Flow Imaging (BFI). Norsk Cardiologisk Selskap Norsk Cardiologisk Selskaps Vårmøte 2005 , Bergen 2005-05-26 - 2005-05-28
Poster

Løvstakken, Lasse; Bjærum, Steinar; Kristoffersen, Kjell; Haaverstad, Rune; Torp, Hans. (2005) Real-time Adaptive Clutter Rejection Filtering in Color Flow Imaging Using Power Method Iterations. IEEE UFFC IEEE International Ultrasonics Symposium , Rotterdam 2005-09-18 - 2005-09-21

2004

Academic lecture

Ibrahim, Khalid Shaker Oklah; Løvstakken, Lasse; Kirkeby-Gaarstad, I.; Torp, Hans; Vik-Mo, Harald; Haaverstad, Rune. (2004) Cardiac cycle and ultrasound mode does not influence the intraperative epicardial assessment of the LIMA-LAD anastomosis. First Conference of Arab Faculties of Medicine Society and first Conference of Jordanian Faculties of Medicine 2004-04-19 - 2004-04-22
Academic lecture

Ibrahim, Khalid Shaker Oklah; Løvstakken, Lasse; Kirkeby-Gaarstad, I.; Torp, Hans; Mårvik, Ronald; Haaverstad, Rune. (2004) Effect of the cardiac cycle and ultrasonic mode on the LIMA-LAD anastomosis in epicardial imaging. Abstract-book: Scandinavian Society for Research in Cardiothoracic Surgery meeting, Geilo, Norway 2004-03-14 -
Academic lecture

Løvstakken, Lasse; Bjærum, Steinar; Martens, Ditlef; Torp, Hans. (2004) Real-time Blood Motion Imaging - A 2D Blood Flow Visualization Technique. IEEE IEEE International Ultrasonics Symposium , Montreal 2004-08-24 - 2004-08-27
Academic lecture

Torp, Hans; Løvstakken, Lasse. (2004) Decomposition of flow signals into basis functions: Performance advantages, disadvantages, and computational complexity. IEEE IEEE International Ultrasonics Symposium , Montreal 2004-08-24 - 2004-08-27

2003

Poster

Løvstakken, Lasse; Haaverstad, Rune; Aadahl, Petter; Bjærum, Steinar; Samstad, Stein; Torp, Hans. (2003) Quality Control of Off-Pump Coronary Heart Surgery using Ultrasound Color Flow Imaging with Adaptive Clutter Rejection Filters. 2003 IEEE International Ultrasonics Symposium , Honolulu, Hawaii, USA 2003-10-08 -

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