Tonni Franke Johansen
Publications
2024
-
Sørlie, Erik Ravik;
Tran, Quoc Anh;
Eiksund, Gudmund Reidar;
Degago, Samson Abate;
Kjennbakken, Heidi;
Johansen, Tonni Franke.
(2024)
Experimental study on erosion of clays during rapid flows.
Ocean Engineering
Academic article
-
Viggen, Erlend Magnus;
Diez, Anja;
Johansen, Tonni Franke.
(2024)
Pyintegrity: An Open-Source Toolbox for Processing Ultrasonic Pulse-Echo Well Integrity Log Data .
Society of Petroleum Engineers
Academic chapter/article/Conference paper
-
Diez, Anja;
Viggen, Erlend Magnus;
Johansen, Tonni Franke.
(2024)
Open Database of Simulated Ultrasonic Pulse-Echo Well Integrity Log Data.
Society of Petroleum Engineers
Academic chapter/article/Conference paper
-
Wangensteen, Magnus;
Johansen, Tonni Franke;
Fatemi, Ali;
Viggen, Erlend Magnus.
(2024)
Pipe wall thickness estimation by frequency–wavenumber analysis of circumferential guided waves.
Mechanical systems and signal processing
Academic article
-
Wangensteen, Magnus;
Johansen, Tonni Franke;
Fatemi, Ali;
Viggen, Erlend Magnus;
Eidissen Haugan, Lars.
(2024)
Pitting Detection and Characterization From Ultrasound Timelapse Images Using Convolutional Neural Networks.
IEEE Open Journal of Instrumentation and Measurement (OJIM)
Academic article
2023
-
Indimath, Shivanandan;
Fiorentini, Stefano;
Bøklepp, Bjarne Rosvoll;
Avdal, Jørgen;
Johansen, Tonni Franke;
Måsøy, Svein-Erik.
(2023)
Effect of bubble size on ultrasound backscatter from bubble clouds in the context of gas kick detection in boreholes.
Scientific Reports
Academic article
-
Diez, Anja;
Johansen, Tonni Franke;
Viggen, Erlend Magnus.
(2023)
From 3D to 1D: Effective numerical modelling of pulse-echo measurements in pipes.
Academic chapter/article/Conference paper
-
Johansen, Tonni Franke;
Buschmann, Philip Erik;
Røsberg, Knut Marius;
Diez, Anja;
Viggen, Erlend Magnus.
(2023)
Ultrasonic well integrity logging using phased array technology.
The American Society of Mechanical Engineers (ASME)
Academic chapter/article/Conference paper
2022
-
Diez, Anja;
Johansen, Tonni Franke;
Larsen, Idar.
(2022)
Ultrasonic Logging of Creeping Shale.
Petrophysics
Academic article
2020
-
Andersen, Kenneth Kirkeng;
Hoff, Lars;
Frijlink, Martijn Egbert;
Johansen, Tonni Franke.
(2020)
Therapeutic dual-frequency ultrasound transducers.
Universitetet i Sørøst-Norge/Universitetet i Søraust-Noreg
Universitetet i Sørøst-Norge/Universitetet i Søraust-Noreg
Doctoral dissertation
-
Andersen, Kenneth Kirkeng;
Frijlink, Martijn Egbert;
Johansen, Tonni Franke;
Hoff, Lars.
(2020)
A Dual-Frequency Coupled Resonator Transducer.
IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control
Academic article
-
Sirevaag, Tore Lie;
Johansen, Tonni Franke;
Larsen, Idar;
Holt, Rune Martin.
(2020)
A study of the flexural attenuation technique through laboratory measurements and numerical simulations.
Petrophysics
Academic article
2019
-
Mikalsen, Astri;
Hoff, Lars;
Frijlink, Martijn Egbert;
Johansen, Tonni Franke.
(2019)
Sensitivity of Transducer for Medical Ultrasound.
Universitetet i Sørøst-Norge/Universitetet i Søraust-Noreg
Universitetet i Sørøst-Norge/Universitetet i Søraust-Noreg
Masters thesis
2018
-
Talberg, Andreas Sørbrøden;
Johansen, Tonni Franke;
Måsøy, Svein-Erik;
Rommetveit, Tarjei;
Brekke, Svein;
Dong, Hefeng.
(2018)
Ultrasonic focusing through a steel layer for acoustic imaging.
Proceedings - IEEE Ultrasonics Symposium
Academic article
-
Bolstad, Per Kristian;
Hoff, Lars;
Torp, Hans;
Johansen, Tonni Franke.
(2018)
Design, Fabrication and Testing Highly Sensitive Single Element Doppler Transducers.
Proceedings - IEEE Ultrasonics Symposium
Academic article
2017
-
Talberg, Andreas Sørbrøden;
Johansen, Tonni Franke;
Larsen, Idar.
(2017)
Laboratory experiments on ultrasonic logging through casing for barrier integrity validation.
The American Society of Mechanical Engineers (ASME)
Academic chapter/article/Conference paper
-
Viggen, Erlend Magnus;
Johansen, Tonni Franke;
Merciu, Ioan Alexandru.
(2017)
Simulation and inversion of ultrasonic pitch-catch through-tubing well logging with an array of receivers.
NDT & E international
Academic article
-
Myhre, Ola Finneng;
Johansen, Tonni Franke;
Angelsen, Bjørn Atle J..
(2017)
Analysis of acoustic impedance matching in dual-band ultrasound transducers.
Journal of the Acoustical Society of America
Academic article
2016
-
Talberg, Andreas Sørbrøden;
Støvneng, Jon Andreas;
Johansen, Tonni Franke.
(2016)
Experimental Evaluation of Broadband Wave Propagation in Plates.
Norges teknisk-naturvitenskapelige universitet
Norges teknisk-naturvitenskapelige universitet
Masters thesis
-
Manh, Tung;
Hoff, Lars;
Eggen, Trym;
Johansen, Tonni Franke;
Lanteri, Frederic;
Gelly, Jean-François.
(2016)
Dual frequency hybrid ultrasonic transducers - Design and simulations.
Proceedings - IEEE Ultrasonics Symposium
Academic article
-
Manh, Tung;
Nguyen, Hoang-Vu;
Le, Ahn Duy;
Aasmundtveit, Knut Eilif;
Hoff, Lars;
Eggen, Trym.
(2016)
Au-Sn Solid-Liquid Interdiffusion (SLID) bonding for piezoelectric ultrasonic transducers.
Proceedings - IEEE Ultrasonics Symposium
Academic article
-
Tran, Thi Khanh Hoa;
Manh, Tung;
Johansen, Tonni Franke;
Hoff, Lars.
(2016)
Temperature effects on ultrasonic phase velocity and attenuation in Eccosorb and PMMA.
Proceedings - IEEE Ultrasonics Symposium
Academic article
-
Talberg, Andreas Sørbrøden;
Johansen, Tonni Franke.
(2016)
Acoustic measurements above a plate carrying Lamb waves.
Academic chapter/article/Conference paper
-
Viggen, Erlend Magnus;
Johansen, Tonni Franke;
Merciu, Ioan Alexandru.
(2016)
Analysis of outer-casing echoes in simulations of ultrasonic pulse-echo through-tubing logging.
Geophysics
Academic article
-
Solheim, Ole;
Johansen, Tonni Franke;
Cappelen, Johan;
Unsgård, Geirmund;
Selbekk, Tormod.
(2016)
Transsellar ultrasound in pituitary surgery with a designated probe: Early experiences.
Operative Neurosurgery
Academic article
-
Viggen, Erlend Magnus;
Johansen, Tonni Franke;
Merciu, Ioan Alexandru.
(2016)
Simulation and modeling of ultrasonic pitch-catch through-tubing logging.
Geophysics
Academic article
2014
-
Manh, Tung;
Hoff, Lars;
Johansen, Tonni Franke.
(2014)
Design and prototyping of dual layer linear arrays.
IEEE conference proceedings
Academic chapter/article/Conference paper
-
Manh, Tung;
Nguyen, Anh Tuan Thai;
Johansen, Tonni Franke;
Hoff, Lars.
(2014)
Microfabrication of stacks of acoustic matching layers for 15 MHz ultrasonic transducers.
Ultrasonics
Academic article
-
Manh, Tung;
Jensen, Geir Uri;
Johansen, Tonni Franke;
Hoff, Lars.
(2014)
Modeling of micromachined silicon–polymer 2-2 composite matching layers for 15 MHz ultrasound transducers.
Ultrasonics
Academic article
2013
-
Manh, Tung;
Jensen, Geir Uri;
Johansen, Tonni Franke;
Hoff, Lars.
(2013)
Microfabricated 1-3 composite acoustic matching layers for 15 MHz transducers.
Ultrasonics
Academic article
-
Selbekk, Tormod;
Jakola, Asgeir S;
Solheim, Ole;
Johansen, Tonni Franke;
Lindseth, Frank;
Reinertsen, Ingerid.
(2013)
Ultrasound imaging in neurosurgery: approaches to minimize surgically induced image artefacts for improved resection control.
Acta Neurochirurgica
Academic literature review
-
Afadzi, Mercy;
Strand, Sabina P.;
Nilssen, Esben A.;
Måsøy, Svein-Erik;
Johansen, Tonni Franke;
Hansen, Rune.
(2013)
Mechanisms of the Ultrasound-Mediated Intracellular Delivery of Liposomes and Dextrans.
IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control
Academic article
2012
-
Mehdizadeh, Saeed;
Austeng, Andreas;
Johansen, Tonni Franke;
Holm, Sverre.
(2012)
Performance of Adaptive Beamformers for Ultrasound Imaging of a Partially Shaded Object.
Proceedings - IEEE Ultrasonics Symposium
Academic article
-
Prieur, Fabrice Jean Gabriel;
Johansen, Tonni Franke;
Holm, Sverre;
Torp, Hans.
(2012)
Fast simulation of second harmonic ultrasound field using a quasi-linear method.
Journal of the Acoustical Society of America
Academic article
-
Afadzi, Mercy;
Davies, Catharina De Lange;
Hansen, Yngve Hofstad;
Johansen, Tonni Franke;
Standal, Øyvind Krøvel-Velle;
Hansen, Rune.
(2012)
EFFECT OF ULTRASOUND PARAMETERS ON THE RELEASE OF LIPOSOMAL CALCEIN.
Ultrasound in Medicine and Biology
Academic article
-
Mehdizadeh, Saeed;
Austeng, Andreas;
Johansen, Tonni Franke;
Holm, Sverre.
(2012)
Minimum Variance Beamforming Applied to Ultrasound Imaging With a Partially Shaded Aperture.
IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control
Academic article
-
Hansen, Yngve Hofstad;
Davies, Catharina De Lange;
Afadzi, Mercy;
Angelsen, Bjørn Atle J.;
Johansen, Tonni Franke;
Nilssen, Esben A..
(2012)
Ultrasonic Drug Release: Impact on Liposomal Doxorubicin in Collagen Gels.
IEEE International Ultrasonics Symposium Proceedings
Academic article
-
Mehdizadeh, Saeed;
Austeng, Andreas;
Johansen, Tonni Franke;
Holm, Sverre.
(2012)
Eigenspace Based Minimum Variance Beamforming Applied to Ultrasound Imaging of Acoustically Hard Tissues.
IEEE Transactions on Medical Imaging
Academic article
-
Mehdizadeh, Saeed;
Muller, Sebastien;
Johansen, Tonni Franke;
Holm, Sverre.
(2012)
Application of eigen-spaced beamformers for imaging lamina of vertebral arch.
IEEE International Ultrasonics Symposium Proceedings
Academic article
2011
-
Rommetveit, Tarjei;
Johansen, Tonni Franke;
Johnsen, Roy.
(2011)
Using a multi-layered transducer model to estimate the properties of paraffin wax deposited on steel.
Ultrasonics
Academic article
-
Økland, Inger;
Bjåstad, Tore;
Johansen, Tonni Franke;
Gjessing, Håkon;
Grøttum, Per;
Eik-Nes, Sturla.
(2011)
Narrowed beam width in newer ultrasound machines shortens measurements in the lateral direction: fetal measurement charts may be obsolete.
Ultrasound in Obstetrics and Gynecology
Academic article
-
Manh, Tung;
Hoff, Lars;
Johansen, Tonni Franke;
Jensen, Geir Uri.
(2011)
1-3 microfabricated composite acoustic matching layers for high frequency transducers.
Proceedings - IEEE Ultrasonics Symposium
Academic article
2010
-
Måsøy, Svein-Erik;
Standal, Øyvind;
Deibele, Jochen;
Näsholm, Sven Peter;
Angelsen, Bjørn Atle J.;
Johansen, Tonni Franke.
(2010)
Nonlinear propagation acoustics of dual-frequency wide-band excitation pulses in a focused ultrasound system.
Journal of the Acoustical Society of America
Academic article
-
Rommetveit, Tarjei;
Johansen, Tonni Franke;
Johnsen, Roy.
(2010)
A Combined Approach for High-Resolution Corrosion Monitoring and Temperature Compensation Using Ultrasound.
IEEE Transactions on Instrumentation and Measurement
Academic article
-
Afadzi, Mercy;
Davies, Catharina De Lange;
Hansen, Yngve Hofstad;
Johansen, Tonni Franke;
Måsøy, Svein-Erik;
Angelsen, Bjørn Atle J..
(2010)
Ultrasound Stimulated Release of Liposomal Calcein.
IEEE International Ultrasonics Symposium Proceedings
Academic article
-
Rommetveit, Tarjei;
Johansen, Tonni Franke;
Deibele, Jochen;
Kaupang, Halvard;
Angelsen, Bjørn Atle J..
(2010)
Two-Way Nonlinear Manipulation in Plane Materials using Dual Frequency Pulse Complexes.
IEEE International Ultrasonics Symposium Proceedings
Academic article
-
Hansen, Rune;
Måsøy, Svein-Erik;
Johansen, Tonni Franke;
Angelsen, Bjørn Atle J..
(2010)
Utilizing dual frequency band transmit pulse complexes in medical ultrasound imaging.
Journal of the Acoustical Society of America
Academic article
-
Nguyen, Anh Tuan Thai;
Manh, Tung;
Hoff, Lars;
Johansen, Tonni Franke;
Jensen, Geir Uri.
(2010)
Fabrication of silicon-polymer composite acoustic matching layers for high frequency transducers.
IEEE International Ultrasonics Symposium Proceedings
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
-
Manh, Tung;
Hoff, Lars;
Johansen, Tonni Franke;
Angelsen, Bjørn Atle J..
(2010)
A new design for a high frequency broadband ultrasound transducer using micromachined Silicon.
IEEE Press
Academic chapter/article/Conference paper
2009
-
Økland, Inger;
Bjåstad, Tore Grüner;
Johansen, Tonni Franke;
Gjessing, Håkon;
Grøttum, Per;
Eik-Nes, Sturla.
(2009)
Femur length measurements are influenced by beam width.
Ultrasound in Obstetrics and Gynecology
Abstract
-
Näsholm, Sven Peter;
Johansen, Tonni Franke;
Angelsen, Bjørn Atle J..
(2009)
An Annular Array Design Proposal with Multiple Geometric Pre-foci.
IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control
Academic article
-
Näsholm, Sven Peter;
Hansen, Rune;
Måsøy, Svein-Erik;
Johansen, Tonni Franke;
Angelsen, Bjørn Atle J..
(2009)
Transmit Beams Adapted to Reverberation Noise Suppression Using Dual-Frequency SURF Imaging.
IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control
Academic article
2008
-
Måsøy, Svein-Erik;
Standal, Øyvind;
Näsholm, Sven Peter;
Johansen, Tonni Franke;
Angelsen, Bjørn Atle J.;
Hansen, Rune.
(2008)
SURF Imaging: In vivo Demonstration of an Ultrasound Contrast Agent Detection Technique.
IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control
Academic article
2007
-
Varslot, Trond;
Måsøy, Svein-Erik;
Johansen, Tonni Franke;
Angelsen, Bjørn Atle J..
(2007)
Aberration in Nonlinear Acoustic Wave Propagation.
IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control
Academic article
2006
-
Kaupang, Halvard;
Måsøy, Svein-Erik;
Varslot, Trond;
Johansen, Tonni Franke;
Angelsen, Bjørn Atle J..
(2006)
Generation and Aberration of Second-Harmonic Ultrasound Beams in Heterogeneous Tissue.
IEEE International Ultrasonics Symposium Proceedings
Academic article
2005
-
Varslot, Trond;
Måsøy, Svein-Erik;
Johansen, Tonni Franke;
Angelsen, Bjørn Atle J..
(2005)
Aberration and second-harmonic imaging.
IEEE International Ultrasonics Symposium Proceedings
Academic article
-
Johansen, Tonni Franke;
Angelsen, Bjørn Atle J..
(2005)
Versatile Analysis of Multilayer Piezoelectric Transducers Using an Admittance Matrix Approach.
Academic chapter/article/Conference paper
2004
-
Näsholm, Sven Peter;
Johansen, Tonni Franke;
Angelsen, Bjørn Atle J..
(2004)
Effect of a Curved Dome on the Effective Foci of an Annular Array - Numerical Simulations and Experimental Measurements.
IEEE International Ultrasonics Symposium Proceedings
Academic article
-
Näsholm, Sven Peter;
Johansen, Tonni Franke;
Angelsen, Bjørn Atle J..
(2004)
Effect of a Curved Dome on the Effective Foci of an Annular Array - Numerical Simulations and Experimental Measurements.
IEEE International Ultrasonics Symposium Proceedings
Academic article
2003
-
Måsøy, Svein Erik;
Johansen, Tonni Franke;
Angelsen, Bjørn Atle J..
(2003)
Correction of ultrasonic wave aberration with a time delay and amplitude filter.
Journal of the Acoustical Society of America
Academic article
Journal publications
-
Sørlie, Erik Ravik;
Tran, Quoc Anh;
Eiksund, Gudmund Reidar;
Degago, Samson Abate;
Kjennbakken, Heidi;
Johansen, Tonni Franke.
(2024)
Experimental study on erosion of clays during rapid flows.
Ocean Engineering
Academic article
-
Wangensteen, Magnus;
Johansen, Tonni Franke;
Fatemi, Ali;
Viggen, Erlend Magnus.
(2024)
Pipe wall thickness estimation by frequency–wavenumber analysis of circumferential guided waves.
Mechanical systems and signal processing
Academic article
-
Wangensteen, Magnus;
Johansen, Tonni Franke;
Fatemi, Ali;
Viggen, Erlend Magnus;
Eidissen Haugan, Lars.
(2024)
Pitting Detection and Characterization From Ultrasound Timelapse Images Using Convolutional Neural Networks.
IEEE Open Journal of Instrumentation and Measurement (OJIM)
Academic article
-
Indimath, Shivanandan;
Fiorentini, Stefano;
Bøklepp, Bjarne Rosvoll;
Avdal, Jørgen;
Johansen, Tonni Franke;
Måsøy, Svein-Erik.
(2023)
Effect of bubble size on ultrasound backscatter from bubble clouds in the context of gas kick detection in boreholes.
Scientific Reports
Academic article
-
Diez, Anja;
Johansen, Tonni Franke;
Larsen, Idar.
(2022)
Ultrasonic Logging of Creeping Shale.
Petrophysics
Academic article
-
Andersen, Kenneth Kirkeng;
Frijlink, Martijn Egbert;
Johansen, Tonni Franke;
Hoff, Lars.
(2020)
A Dual-Frequency Coupled Resonator Transducer.
IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control
Academic article
-
Sirevaag, Tore Lie;
Johansen, Tonni Franke;
Larsen, Idar;
Holt, Rune Martin.
(2020)
A study of the flexural attenuation technique through laboratory measurements and numerical simulations.
Petrophysics
Academic article
-
Talberg, Andreas Sørbrøden;
Johansen, Tonni Franke;
Måsøy, Svein-Erik;
Rommetveit, Tarjei;
Brekke, Svein;
Dong, Hefeng.
(2018)
Ultrasonic focusing through a steel layer for acoustic imaging.
Proceedings - IEEE Ultrasonics Symposium
Academic article
-
Bolstad, Per Kristian;
Hoff, Lars;
Torp, Hans;
Johansen, Tonni Franke.
(2018)
Design, Fabrication and Testing Highly Sensitive Single Element Doppler Transducers.
Proceedings - IEEE Ultrasonics Symposium
Academic article
-
Viggen, Erlend Magnus;
Johansen, Tonni Franke;
Merciu, Ioan Alexandru.
(2017)
Simulation and inversion of ultrasonic pitch-catch through-tubing well logging with an array of receivers.
NDT & E international
Academic article
-
Myhre, Ola Finneng;
Johansen, Tonni Franke;
Angelsen, Bjørn Atle J..
(2017)
Analysis of acoustic impedance matching in dual-band ultrasound transducers.
Journal of the Acoustical Society of America
Academic article
-
Manh, Tung;
Hoff, Lars;
Eggen, Trym;
Johansen, Tonni Franke;
Lanteri, Frederic;
Gelly, Jean-François.
(2016)
Dual frequency hybrid ultrasonic transducers - Design and simulations.
Proceedings - IEEE Ultrasonics Symposium
Academic article
-
Manh, Tung;
Nguyen, Hoang-Vu;
Le, Ahn Duy;
Aasmundtveit, Knut Eilif;
Hoff, Lars;
Eggen, Trym.
(2016)
Au-Sn Solid-Liquid Interdiffusion (SLID) bonding for piezoelectric ultrasonic transducers.
Proceedings - IEEE Ultrasonics Symposium
Academic article
-
Tran, Thi Khanh Hoa;
Manh, Tung;
Johansen, Tonni Franke;
Hoff, Lars.
(2016)
Temperature effects on ultrasonic phase velocity and attenuation in Eccosorb and PMMA.
Proceedings - IEEE Ultrasonics Symposium
Academic article
-
Viggen, Erlend Magnus;
Johansen, Tonni Franke;
Merciu, Ioan Alexandru.
(2016)
Analysis of outer-casing echoes in simulations of ultrasonic pulse-echo through-tubing logging.
Geophysics
Academic article
-
Solheim, Ole;
Johansen, Tonni Franke;
Cappelen, Johan;
Unsgård, Geirmund;
Selbekk, Tormod.
(2016)
Transsellar ultrasound in pituitary surgery with a designated probe: Early experiences.
Operative Neurosurgery
Academic article
-
Viggen, Erlend Magnus;
Johansen, Tonni Franke;
Merciu, Ioan Alexandru.
(2016)
Simulation and modeling of ultrasonic pitch-catch through-tubing logging.
Geophysics
Academic article
-
Manh, Tung;
Nguyen, Anh Tuan Thai;
Johansen, Tonni Franke;
Hoff, Lars.
(2014)
Microfabrication of stacks of acoustic matching layers for 15 MHz ultrasonic transducers.
Ultrasonics
Academic article
-
Manh, Tung;
Jensen, Geir Uri;
Johansen, Tonni Franke;
Hoff, Lars.
(2014)
Modeling of micromachined silicon–polymer 2-2 composite matching layers for 15 MHz ultrasound transducers.
Ultrasonics
Academic article
-
Manh, Tung;
Jensen, Geir Uri;
Johansen, Tonni Franke;
Hoff, Lars.
(2013)
Microfabricated 1-3 composite acoustic matching layers for 15 MHz transducers.
Ultrasonics
Academic article
-
Selbekk, Tormod;
Jakola, Asgeir S;
Solheim, Ole;
Johansen, Tonni Franke;
Lindseth, Frank;
Reinertsen, Ingerid.
(2013)
Ultrasound imaging in neurosurgery: approaches to minimize surgically induced image artefacts for improved resection control.
Acta Neurochirurgica
Academic literature review
-
Afadzi, Mercy;
Strand, Sabina P.;
Nilssen, Esben A.;
Måsøy, Svein-Erik;
Johansen, Tonni Franke;
Hansen, Rune.
(2013)
Mechanisms of the Ultrasound-Mediated Intracellular Delivery of Liposomes and Dextrans.
IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control
Academic article
-
Mehdizadeh, Saeed;
Austeng, Andreas;
Johansen, Tonni Franke;
Holm, Sverre.
(2012)
Performance of Adaptive Beamformers for Ultrasound Imaging of a Partially Shaded Object.
Proceedings - IEEE Ultrasonics Symposium
Academic article
-
Prieur, Fabrice Jean Gabriel;
Johansen, Tonni Franke;
Holm, Sverre;
Torp, Hans.
(2012)
Fast simulation of second harmonic ultrasound field using a quasi-linear method.
Journal of the Acoustical Society of America
Academic article
-
Afadzi, Mercy;
Davies, Catharina De Lange;
Hansen, Yngve Hofstad;
Johansen, Tonni Franke;
Standal, Øyvind Krøvel-Velle;
Hansen, Rune.
(2012)
EFFECT OF ULTRASOUND PARAMETERS ON THE RELEASE OF LIPOSOMAL CALCEIN.
Ultrasound in Medicine and Biology
Academic article
-
Mehdizadeh, Saeed;
Austeng, Andreas;
Johansen, Tonni Franke;
Holm, Sverre.
(2012)
Minimum Variance Beamforming Applied to Ultrasound Imaging With a Partially Shaded Aperture.
IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control
Academic article
-
Hansen, Yngve Hofstad;
Davies, Catharina De Lange;
Afadzi, Mercy;
Angelsen, Bjørn Atle J.;
Johansen, Tonni Franke;
Nilssen, Esben A..
(2012)
Ultrasonic Drug Release: Impact on Liposomal Doxorubicin in Collagen Gels.
IEEE International Ultrasonics Symposium Proceedings
Academic article
-
Mehdizadeh, Saeed;
Austeng, Andreas;
Johansen, Tonni Franke;
Holm, Sverre.
(2012)
Eigenspace Based Minimum Variance Beamforming Applied to Ultrasound Imaging of Acoustically Hard Tissues.
IEEE Transactions on Medical Imaging
Academic article
-
Mehdizadeh, Saeed;
Muller, Sebastien;
Johansen, Tonni Franke;
Holm, Sverre.
(2012)
Application of eigen-spaced beamformers for imaging lamina of vertebral arch.
IEEE International Ultrasonics Symposium Proceedings
Academic article
-
Rommetveit, Tarjei;
Johansen, Tonni Franke;
Johnsen, Roy.
(2011)
Using a multi-layered transducer model to estimate the properties of paraffin wax deposited on steel.
Ultrasonics
Academic article
-
Økland, Inger;
Bjåstad, Tore;
Johansen, Tonni Franke;
Gjessing, Håkon;
Grøttum, Per;
Eik-Nes, Sturla.
(2011)
Narrowed beam width in newer ultrasound machines shortens measurements in the lateral direction: fetal measurement charts may be obsolete.
Ultrasound in Obstetrics and Gynecology
Academic article
-
Manh, Tung;
Hoff, Lars;
Johansen, Tonni Franke;
Jensen, Geir Uri.
(2011)
1-3 microfabricated composite acoustic matching layers for high frequency transducers.
Proceedings - IEEE Ultrasonics Symposium
Academic article
-
Måsøy, Svein-Erik;
Standal, Øyvind;
Deibele, Jochen;
Näsholm, Sven Peter;
Angelsen, Bjørn Atle J.;
Johansen, Tonni Franke.
(2010)
Nonlinear propagation acoustics of dual-frequency wide-band excitation pulses in a focused ultrasound system.
Journal of the Acoustical Society of America
Academic article
-
Rommetveit, Tarjei;
Johansen, Tonni Franke;
Johnsen, Roy.
(2010)
A Combined Approach for High-Resolution Corrosion Monitoring and Temperature Compensation Using Ultrasound.
IEEE Transactions on Instrumentation and Measurement
Academic article
-
Afadzi, Mercy;
Davies, Catharina De Lange;
Hansen, Yngve Hofstad;
Johansen, Tonni Franke;
Måsøy, Svein-Erik;
Angelsen, Bjørn Atle J..
(2010)
Ultrasound Stimulated Release of Liposomal Calcein.
IEEE International Ultrasonics Symposium Proceedings
Academic article
-
Rommetveit, Tarjei;
Johansen, Tonni Franke;
Deibele, Jochen;
Kaupang, Halvard;
Angelsen, Bjørn Atle J..
(2010)
Two-Way Nonlinear Manipulation in Plane Materials using Dual Frequency Pulse Complexes.
IEEE International Ultrasonics Symposium Proceedings
Academic article
-
Hansen, Rune;
Måsøy, Svein-Erik;
Johansen, Tonni Franke;
Angelsen, Bjørn Atle J..
(2010)
Utilizing dual frequency band transmit pulse complexes in medical ultrasound imaging.
Journal of the Acoustical Society of America
Academic article
-
Nguyen, Anh Tuan Thai;
Manh, Tung;
Hoff, Lars;
Johansen, Tonni Franke;
Jensen, Geir Uri.
(2010)
Fabrication of silicon-polymer composite acoustic matching layers for high frequency transducers.
IEEE International Ultrasonics Symposium Proceedings
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
-
Økland, Inger;
Bjåstad, Tore Grüner;
Johansen, Tonni Franke;
Gjessing, Håkon;
Grøttum, Per;
Eik-Nes, Sturla.
(2009)
Femur length measurements are influenced by beam width.
Ultrasound in Obstetrics and Gynecology
Abstract
-
Näsholm, Sven Peter;
Johansen, Tonni Franke;
Angelsen, Bjørn Atle J..
(2009)
An Annular Array Design Proposal with Multiple Geometric Pre-foci.
IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control
Academic article
-
Näsholm, Sven Peter;
Hansen, Rune;
Måsøy, Svein-Erik;
Johansen, Tonni Franke;
Angelsen, Bjørn Atle J..
(2009)
Transmit Beams Adapted to Reverberation Noise Suppression Using Dual-Frequency SURF Imaging.
IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control
Academic article
-
Måsøy, Svein-Erik;
Standal, Øyvind;
Näsholm, Sven Peter;
Johansen, Tonni Franke;
Angelsen, Bjørn Atle J.;
Hansen, Rune.
(2008)
SURF Imaging: In vivo Demonstration of an Ultrasound Contrast Agent Detection Technique.
IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control
Academic article
-
Varslot, Trond;
Måsøy, Svein-Erik;
Johansen, Tonni Franke;
Angelsen, Bjørn Atle J..
(2007)
Aberration in Nonlinear Acoustic Wave Propagation.
IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control
Academic article
-
Kaupang, Halvard;
Måsøy, Svein-Erik;
Varslot, Trond;
Johansen, Tonni Franke;
Angelsen, Bjørn Atle J..
(2006)
Generation and Aberration of Second-Harmonic Ultrasound Beams in Heterogeneous Tissue.
IEEE International Ultrasonics Symposium Proceedings
Academic article
-
Varslot, Trond;
Måsøy, Svein-Erik;
Johansen, Tonni Franke;
Angelsen, Bjørn Atle J..
(2005)
Aberration and second-harmonic imaging.
IEEE International Ultrasonics Symposium Proceedings
Academic article
-
Näsholm, Sven Peter;
Johansen, Tonni Franke;
Angelsen, Bjørn Atle J..
(2004)
Effect of a Curved Dome on the Effective Foci of an Annular Array - Numerical Simulations and Experimental Measurements.
IEEE International Ultrasonics Symposium Proceedings
Academic article
-
Näsholm, Sven Peter;
Johansen, Tonni Franke;
Angelsen, Bjørn Atle J..
(2004)
Effect of a Curved Dome on the Effective Foci of an Annular Array - Numerical Simulations and Experimental Measurements.
IEEE International Ultrasonics Symposium Proceedings
Academic article
-
Måsøy, Svein Erik;
Johansen, Tonni Franke;
Angelsen, Bjørn Atle J..
(2003)
Correction of ultrasonic wave aberration with a time delay and amplitude filter.
Journal of the Acoustical Society of America
Academic article
Part of book/report
-
Viggen, Erlend Magnus;
Diez, Anja;
Johansen, Tonni Franke.
(2024)
Pyintegrity: An Open-Source Toolbox for Processing Ultrasonic Pulse-Echo Well Integrity Log Data .
Society of Petroleum Engineers
Academic chapter/article/Conference paper
-
Diez, Anja;
Viggen, Erlend Magnus;
Johansen, Tonni Franke.
(2024)
Open Database of Simulated Ultrasonic Pulse-Echo Well Integrity Log Data.
Society of Petroleum Engineers
Academic chapter/article/Conference paper
-
Diez, Anja;
Johansen, Tonni Franke;
Viggen, Erlend Magnus.
(2023)
From 3D to 1D: Effective numerical modelling of pulse-echo measurements in pipes.
Academic chapter/article/Conference paper
-
Johansen, Tonni Franke;
Buschmann, Philip Erik;
Røsberg, Knut Marius;
Diez, Anja;
Viggen, Erlend Magnus.
(2023)
Ultrasonic well integrity logging using phased array technology.
The American Society of Mechanical Engineers (ASME)
Academic chapter/article/Conference paper
-
Talberg, Andreas Sørbrøden;
Johansen, Tonni Franke;
Larsen, Idar.
(2017)
Laboratory experiments on ultrasonic logging through casing for barrier integrity validation.
The American Society of Mechanical Engineers (ASME)
Academic chapter/article/Conference paper
-
Talberg, Andreas Sørbrøden;
Johansen, Tonni Franke.
(2016)
Acoustic measurements above a plate carrying Lamb waves.
Academic chapter/article/Conference paper
-
Manh, Tung;
Hoff, Lars;
Johansen, Tonni Franke.
(2014)
Design and prototyping of dual layer linear arrays.
IEEE conference proceedings
Academic chapter/article/Conference paper
-
Manh, Tung;
Hoff, Lars;
Johansen, Tonni Franke;
Angelsen, Bjørn Atle J..
(2010)
A new design for a high frequency broadband ultrasound transducer using micromachined Silicon.
IEEE Press
Academic chapter/article/Conference paper
-
Johansen, Tonni Franke;
Angelsen, Bjørn Atle J..
(2005)
Versatile Analysis of Multilayer Piezoelectric Transducers Using an Admittance Matrix Approach.
Academic chapter/article/Conference paper
Report
-
Andersen, Kenneth Kirkeng;
Hoff, Lars;
Frijlink, Martijn Egbert;
Johansen, Tonni Franke.
(2020)
Therapeutic dual-frequency ultrasound transducers.
Universitetet i Sørøst-Norge/Universitetet i Søraust-Noreg
Universitetet i Sørøst-Norge/Universitetet i Søraust-Noreg
Doctoral dissertation
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Mikalsen, Astri;
Hoff, Lars;
Frijlink, Martijn Egbert;
Johansen, Tonni Franke.
(2019)
Sensitivity of Transducer for Medical Ultrasound.
Universitetet i Sørøst-Norge/Universitetet i Søraust-Noreg
Universitetet i Sørøst-Norge/Universitetet i Søraust-Noreg
Masters thesis
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Talberg, Andreas Sørbrøden;
Støvneng, Jon Andreas;
Johansen, Tonni Franke.
(2016)
Experimental Evaluation of Broadband Wave Propagation in Plates.
Norges teknisk-naturvitenskapelige universitet
Norges teknisk-naturvitenskapelige universitet
Masters thesis
Outreach
2024
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InterviewWangensteen, Magnus; Johansen, Tonni Franke; Fatemi, Ali; Viggen, Erlend Magnus. (2024) Researchers Use Machine Learning to Detect Pitting Corrosion. Materials Performance Materials Performance [Business/trade/industry journal] 2024-06-11
2023
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PosterBunaziv, Ivan; Diez, Anja; Johansen, Tonni Franke; Ren, Xiaobo. (2023) What does the defect say? Acoustic emission (AE) for process monitoring and defect detection in laser welding. FME NorthWind Innovation Forum 2023-12-06 - 2023-12-07
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Academic lectureRasmussen, Andreas Lund; Fjalestad, Kjetil; Yan, Ru; Viumdal, Håkon; Mylvaganam, Saba; Johansen, Tonni Franke. (2023) Phase Fractions and Velocities in Multiphase Flow – Estimation using Sensor Data Fusion and Machine Learning. SIMS 2023 2023-09-25 - 2023-09-28
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Academic lectureDiez, Anja; Johansen, Tonni Franke; Viggen, Erlend Magnus. (2023) From 3D to 1D – effective numerical modelling of pulse-echo measurements in pipes. Norsk Fysisk Selskap 46th Scandinavian Symposium on Physical Acoustics , Geilo 2023-01-29 - 2023-02-01
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Academic lectureWangensteen, Magnus; Johansen, Tonni Franke; Fatemi, Ali; Viggen, Erlend Magnus. (2023) Ultrasonic Guided Waves and Machine Learning for Corrosion Monitoring in Steel Pipes. The Association for Materials Protection and Performance AMPP Annual Conference + Expo 2023 , Denver, Colorado 2023-03-19 - 2023-03-23
2022
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LectureDiez, Anja; Johansen, Tonni Franke; Viggen, Erlend Magnus. (2022) Cement bond logs: Current Pulse Echo processing algorithms. NTNU CIUS Fall Conference 2022 2022-11-09 - 2022-11-10
2021
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LectureLarsen, Idar; Bakheim, Sigurd; Diez, Anja; Johansen, Tonni Franke. (2021) Barrier evaluation. SINTEF SC møte på Shale Barrier Toolbox , Digitalt 2021-05-05 - 2021-05-05
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LectureDiez, Anja; Johansen, Tonni Franke; Larsen, Idar. (2021) Micro-Annulus PE &PC. SINTEF SC møte på Shale Barrier Toolbox , Digitalt 2021-03-24 - 2021-03-24
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LectureDiez, Anja; Johansen, Tonni Franke; Larsen, Idar. (2021) PC Comsol modelling. SINTEF SC møte på Shale Barrier Toolbox , Digitalt 2021-08-25 - 2021-08-25
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InterviewJohansen, Tonni Franke. (2021) Norsk teknologi skal gjøre fiske mer bærekraftig. tu.no tu.no [Internet] 2021-08-04
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Academic lectureDiez, Anja; Johansen, Tonni Franke; Larsen, Idar. (2021) Ultrasonic logging of creeping shale. NTNU 44th Scandinavian Symposium on Physical Acoustics , Digital 2021-02-01 - 2021-02-02
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LectureIndimath, Shivanandan; Fiorentini, Stefano; Avdal, Jørgen; Torp, Hans; Johansen, Tonni Franke; Bøklepp, Bjarne Rosvoll. (2021) Estimation of fluid velocity profile and crack geometry for influx/efflux while drilling oil and gas boreholes using Doppler ultrasound. Indian Society for Non Destructive Testing ISNT NDE 2021 , Online 2021-12-09 - 2021-12-11
2020
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Academic lectureTalberg, Andreas Sørbrøden; Dong, Hefeng; Johansen, Tonni Franke; Måsøy, Svein-Erik. (2020) Ultrasonic Wave Propagation in Layered Media – Beamforming for target detection and flow measurements. Scandinavian Symposium on Physical Acoustics 2020-01-26 - 2020-01-29
2019
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Academic lectureJohansen, Tonni Franke. (2019) Lab scale ultrasonic logging through casing of shale barrier creation. P&A Seminar 2019 2019-10-17 - 2019-10-17
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LectureTalberg, Andreas Sørbrøden; Dong, Hefeng; Johansen, Tonni Franke; Måsøy, Svein-Erik. (2019) Ultrasonic focusing through a steel layer. Scandinavian Symposium on Physical Acoustics 2019 , Geilo 2019-01-27 - 2019-01-30
2018
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Academic lectureTalberg, Andreas Sørbrøden; Dong, Hefeng; Johansen, Tonni Franke; Måsøy, Svein-Erik. (2018) Target detection through a steel plate using beamforming . Scandinavian Symposium on Physical Acoustics 2018 , Geilo 2018-01-28 - 2018-01-31
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PosterTalberg, Andreas Sørbrøden; Dong, Hefeng; Johansen, Tonni Franke; Måsøy, Svein-Erik; Brekke, Svein; Rommetveit, Tarjei. (2018) Ultrasonic focusing through a steel layer for acoustic imaging. IEEE IEEE International Ultrasonics Symposium 2018 , Kobe 2018-10-22 - 2018-10-25
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Academic lectureSirevaag, Tore Lie; Johansen, Tonni Franke; Larsen, Idar; Holt, Rune Martin. (2018) LABORATORY SETUP FOR IMPROVED LOGGING BEHIND CASING. Society of Petrophysicists and Well Log Analysts (SPWLA) SPWLA 59th Annual Symposium , London 2018-06-02 - 2018-06-06
2017
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Academic lectureViggen, Erlend Magnus; Johansen, Tonni Franke; Merciu, Ioan Alexandru. (2017) Ultrasonic through-tubing well logging with an array of receivers. Norsk Fysisk Selskap 40th Scandinavian Symposium on Physical Acoustics , Geilo 2017-01-29 - 2017-02-01
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Academic lectureLarsen, Idar; Johansen, Tonni Franke; Talberg, Andreas Sørbrøden. (2017) Cement bond log interpretation in shale formations. SINTEF Petroleum SINTEF Petroleum Conference 2017 , Trondheim 2017-03-20 - 2017-03-21
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Academic lectureTalberg, Andreas Sørbrøden; Johansen, Tonni Franke. (2017) Experimental evaluation of Lamb wave propagation in plates. Scandinavian Symposium on Physical Acoustics 2017-01-29 - 2017-02-01
2016
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Academic lectureTalberg, Andreas Sørbrøden; Johansen, Tonni Franke. (2016) Acoustic measurements above a plate carrying Lamb waves. The 39th Scandinavian Symposium on Physical Acoustics 2016-01-31 - 2016-02-03
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Academic lectureManh, Tung; Hoff, Lars; Johansen, Tonni Franke; Eggen, Trym Haakon; Lanteri, Frederic; Gelly, Jean-François. (2016) Dual Hybrid Ultrasound Transducers - Designs and Simulations. NIH Resource Center for Medical Ultrasonic Transducer Techno 13th Annual Ultrasonic Transducer Engineering Conference , Torrance Marriott Redondo Beach, Torrance, CA 2016-05-16 - 2016-05-17
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Academic lectureManh, Tung; Nguyen, Hoang-Vu; Le, Duy; Aasmundtveit, Knut Eilif; Hoff, Lars; Eggen, Trym. (2016) Au-Sn Solid-Liquid Interdiffusion (SLID) bonding for piezoelectric ultrasonic transducers. 2016 IEEE International Ultrasonics Symposium Proceedings 2016-09-18 - 2016-09-21
2015
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Academic lectureViggen, Erlend Magnus; Johansen, Tonni Franke; Merciu, Ioan Alexandru. (2015) Simulation and modelling of ultrasonic double-casing well logging. Norsk Fysisk Selskap 38th Scandinavian Symposium on Physical Acoustics , Geilo 2015-02-03 - 2015-02-03
2012
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PosterHansen, Yngve Hofstad; Afadzi, Mercy; Nilssen, Esben A.; Johansen, Tonni Franke; Angelsen, Bjørn Atle J.; Davies, Catharina De Lange. (2012) Ultrasonic Drug Release: Impact on Liposomal Doxorubicin in Collagen Gels. 2012 IEEE International Ultrasonics Symposium 2012-10-07 - 2012-10-10
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Academic lectureManh, Tung; Jensen, Geir Uri; Johansen, Tonni Franke; Hoff, Lars. (2012) Modelling and characterization of a silicon-epoxy 2-2 composite material. IEEE 2012 IEEE International Ultrasonics Symposium , Dresden 2012-10-07 - 2012-10-10
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Academic lectureJohansen, Tonni Franke; Angelsen, Bjørn Atle J.; Rommetveit, Tarjei. (2012) On Surf Imaging through steel. Norsk fysisk selskap 35th Scandinavian Symposium on Physical Acoustics , Geilo 2012-01-29 - 2012-02-01
2011
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PosterAfadzi, Mercy; Hansen, Yngve Hofstad; Hansen, Rune; Johansen, Tonni Franke; Angelsen, Bjørn Atle J.; Davies, Catharina De Lange. (2011) Intracellular Delivery of Nanoparticles using Ultrasound. IEEE 2011 IEEE International Ultrasonics Symposium , Orlando, Florida 2011-10-18 - 2011-10-21
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PosterPrieur, Fabrice Jean Gabriel; Johansen, Tonni Franke; Torp, Hans. (2011) Fast 3D simulation of second harmonic ultrasound field. 3rd National PhD Conference in Medical Imaging , Oslo 2011-11-21 - 2011-11-22
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Academic lectureDeibele, Jochen; Måsøy, Svein Erik; Dahl, Torbjørn; Tangen, Thor Andreas; Hansen, Rune; Johansen, Tonni Franke. (2011) Bedret avbildning av carotis med SURF imaging. Norsk forening for ultralyd-diagnostikk NFUD Årsmøte , Trondheim 2011-03-30 - 2011-04-01
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Academic lectureDeibele, Jochen; Måsøy, Svein-Erik; Dahl, Torbjørn; Tangen, Thor Andreas; Hansen, Rune; Johansen, Tonni Franke. (2011) Clutter reduction – a quantitative in vivo image contrast analysis. Deutsche Gesellschaft für Biomedizinische Technik BMT 2011 , Freiburg 2011-09-27 - 2011-09-30
2010
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Academic lectureSolheim, Ole; Selbekk, Tormod; Johansen, Tonni Franke; Unsgård, Geirmund. (2010) Peroperativ Ultralyd ved hypofysekirurgi. Norsk Nevroendokrin Interessegruppe Fagmøte , Stavanger 2010-10-07 - 2010-10-08
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Academic lectureMåsøy, Svein-Erik; Deibele, Jochen; Tangen, Thor Andreas; Kaupang, Halvard; Hansen, Rune; Johansen, Tonni Franke. (2010) SURF imaging - kliniske eksempler. Norsk Forening for Ultralyddiagnostikk Norsk Forening for Ultralyddiagnostikk Symposium , Lillehammer 2010-04-21 - 2010-04-23
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Academic lectureDavies, Catharina De Lange; Afadzi, Mercy; Hansen, Yngve Hofstad; Johansen, Tonni Franke; Måsøy, Svein-Erik; Angelsen, Bjørn Atle J.. (2010) The impact of ultrasound on liposomal drug release. European Science Foundation European Science Foundation - Nanomedicine , Sant Feliu de Guixols 2010-10-23 - 2010-10-28
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Academic lectureManh, Tung; Nguyen, Ahn-Tuan Thai; Hoff, Lars; Johansen, Tonni Franke. (2010) Design of High Frequency Ultrasound Transducers using Micromachining. 33rd Scandinavian Symposium on Physical Acoustics (SSPA2010) , Geilo, Norway 2010-02-07 - 2010-02-10
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PosterAfadzi, Mercy; Davies, Catharina De Lange; Hansen, Yngve Hofstad; Johansen, Tonni Franke; Måsøy, Svein-Erik; Angelsen, Bjørn Atle J.. (2010) Ultrasound stimulated release of liposomal calcien. IEEE International Ultrasonics Symposium (IUS) 2010 IEEE International Ultrasonics Symposium (IUS) , San Diego, California 2010-10-11 - 2010-10-14
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PosterRommetveit, Tarjei; Johansen, Tonni Franke; Deibele, Jochen; Kaupang, Halvard; Angelsen, Bjørn Atle J.. (2010) Two-Way Nonlinear Manipulation in Plane Materials using Dual Frequency Pulse Complexes. IEEE IEEE International Ultrasonics Symposium 2010 , San Diego 2010-10-11 - 2010-10-14
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Academic lectureRommetveit, Tarjei; Johansen, Tonni Franke. (2010) Characterization of Ultrasound Transducers. Norsk fysisisk selskap 33rd Scandinavian Symposium on Physical Acoustics , Geilo 2010-02-07 - 2010-02-10
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Academic lectureLangø, Thomas; Bø, Lars Eirik; Gjelsvik, Torgrim; Johansen, Tonni Franke. (2010) Ultrasound based localization of wireless endoscopic capsule. 7th International Conference on Wearable Micro and Nano Technologies for Personalized Health (pHealth 2010) , Berlin 2010-05-26 - 2010-05-28
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Academic lectureDavies, Catharina De Lange; Afadzi, Mercy; Hansen, Yngve Hofstad; Johansen, Tonni Franke; Måsøy, Svein-Erik; Angelsen, Bjørn Atle J.. (2010) The impact of ultrasound on liposomal drug releasr. Conf erence of the Society for medical innovation and technology , Trondheim 2010-09-02 - 2010-09-04
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Academic lectureDeibele, Jochen; Tangen, Thor Andreas; Måsøy, Svein Erik; Hansen, Rune; Johansen, Tonni Franke; Angelsen, Bjørn Atle J.. (2010) Undertrykkelse av reverberasjoner med SURF-imaging. Norsk forening for ultralyd diagnostikk NFUD årsmøte , Lillehammer 2010-04-21 - 2010-04-23
2009
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PosterManh, Tung; Hoff, Lars; Johansen, Tonni Franke; Angelsen, Bjørn A. J.. (2009) A New Design for a High Frequency Broadband Ultrasound Transducer using Micromachined Silicon. The 6th international workshop on Wearable Micro and Nano Technologies for Personalized Health (pHealth2009) , Oslo, Norway 2009-06-24 - 2009-06-26
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Academic lectureLangø, Thomas; Bø, Lars Eirik; Johansen, Tonni Franke; Gjelsvik, Torgrim. (2009) Ultrasound based localisation of wireless microrobotic endoscopic capsule for the GI tract. Society for Medical Innovation and Technology 21st International Conference of the Society for Medical Innovation and Technology (SMIT 2009) , Sinaia 2009-10-07 - 2009-10-09
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Academic lectureRommetveit, Tarjei; Johnsen, Roy; Johansen, Tonni Franke; Baltzersen, Øystein. (2009) High resolution ultrasound thickness measurements through polyester coating and real-time process control. NACE International Corrosion 2009 , Atlanta 2009-03-22 - 2009-03-26
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Academic lectureSolheim, 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
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Academic lectureSolheim, 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
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Academic lectureDeibele, Jochen; Tangen, Thor Andreas; Måsøy, Svein-Erik; Hansen, Rune; Standal, Øyvind; Johansen, Tonni Franke. (2009) Hvordan få en scanner til å SURFe. Norsk forening for ultralyd diagnostikk NFUD Årsmøte 2009 , Oslo 2009-04-23 - 2009-04-25
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Academic lectureMåsøy, Svein-Erik; Tangen, Thor Andreas; Standal, Øyvind; Deibele, Jochen; Näsholm, Sven Peter; Hansen, Rune. (2009) SURF imaging - Acoustics from a dual-frequency band annular array. IEEE IEEE 2009 Ultrasonics Symposium , Roma 2009-09-20 - 2009-09-23
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Academic lectureMåsøy, Svein-Erik; Tangen, Thor Andreas; Standal, Øyvind; Deibele, Jochen; Näsholm, Sven Peter; Hansen, Rune. (2009) SURF imaging - Acoustics from a dual-frequency band annular array. IEEE 2009 Ultrasonics Symposium 2009-09-20 - 2009-09-23
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Academic lectureMåsøy, Svein-Erik; Tangen, Thor Andreas; Standal, Øyvind; Deibele, Jochen; Näsholm, Sven Peter; Hansen, Rune. (2009) SURF imaging - A real time dual-frequency band ultrasound system. IEEE IEEE 2009 Ultrasonics Symposium , Roma 2009-09-20 - 2009-09-23
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Academic lectureMåsøy, Svein-Erik; Tangen, Thor Andreas; Standal, Øyvind; Deibele, Jochen; Näsholm, Sven Peter; Hansen, Rune. (2009) SURF imaging - A real time dual-frequency band ultrasound system. IEEE 2009 Ultrasonics Symposium 2009-09-20 - 2009-09-23
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Academic lectureTangen, Thor Andreas; Hansen, Rune; Johansen, Tonni Franke; Skavhaug, Amund; Angelsen, Bjørn Atle J.; Måsøy, Svein-Erik. (2009) Comparison of SURF imaging and Pulse Inversion for CEUS: A simulation study. Erasmus Medical Center 14th European Symposium on Ultrasound Contrast Imaging , Rotterdam 2009-01-22 - 2009-01-23
2008
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Academic lectureSolheim, 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
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Academic lectureJohansen, Tonni Franke; Deibele, Jochen; Måsøy, Svein-Erik; Hansen, Rune; Angelsen, Bjørn Atle J.. (2008) Design and Test of a Dual-Layer, Dual-Frequency SURF Array. Norwegian Physical Society 31st Scandinavian Symposium on Physical Acoustics , Geilo 2008-01-27 - 2008-01-30
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Academic lectureDeibele, Jochen; Kocbach, Jan; Lunde, Per; Angelsen, Bjørn Atle J.; Johansen, Tonni Franke. (2008) Transdusere for SURF avbildning. NORSK FORENING FOR ULTRALYD-DIAGNOSTIKK NFUD ultralyd symposium , Trondheim-Tromsø 2008-04-04 - 2008-04-06
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Academic lectureMåsøy, Svein-Erik; Hansen, Rune; Angelsen, Anders; Kaupang, Halvard; Tangen, Thor Andreas; Standal, Øyvind. (2008) SURF IMAGING – High-frequency ultrasound contrast agent imaging in patients with prostate cancer. The Thirteenth European Symposium on Ultrasound Contrast Imaging , Rotterdam 2008-01-24 - 2008-01-25
2007
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Academic lectureMåsøy, Svein-Erik; Kaupang, Halvard; Tangen, Thor Andreas; Standal, Øyvind; Näsholm, Sven Peter; Johansen, Tonni Franke. (2007) SURF IMAGING – IN VIVO DEMONSTRATION OF AN ULTRASOUND CONTRAST AGENT DETECTION TECHNIQUE IN PATIENTS WITH PROSTATE CANCER AND THYROID NODULES. IEEE 2007 IEEE Ultrasonics Symposium , New York City 2007-10-28 - 2007-10-31
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Academic lectureHansen, Rune; Måsøy, Svein-Erik; Standal, Øyvind; Näsholm, Sven Peter; Johansen, Tonni Franke; Angelsen, Bjørn Atle J.. (2007) Improving contrast agent detection with SURF imaging. The 12th european symposium on ultrasound contrast imaging , Rotterdam 2007-01-25 - 2007-01-26
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Academic lectureHansen, Rune; Måsøy, Svein-Erik; Näsholm, Sven Peter; Standal, Øyvind; Johansen, Tonni Franke; Angelsen, Bjørn Atle J.. (2007) SURF imaging for ultrasound contrast agents. NFUD Årsmøte Norsk forening for ultralyd-diagnostikk (NFUD) , Bergen 2007-04-26 - 2007-04-28
2006
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Academic lectureMåsøy, Svein-Erik; Hansen, Rune; Näsholm, Sven Peter; Standal, Øyvind; Johansen, Tonni Franke; Angelsen, Bjørn Atle J.. (2006) SURF IMAGING – A METHOD FOR HIGH FREQUENCY ULTRASOUND CONTRAST AGENT DETECTION. IEEE 2006 IEEE International Ultrasonics Symposium , Vancouver 2006-10-03 - 2006-10-06
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Academic lectureMåsøy, Svein-Erik; Näsholm, Sven Peter; Standal, Øyvind; Johansen, Tonni Franke; Hansen, Rune; Angelsen, Bjørn Atle J.. (2006) ACOUSTIC NOISE IN MEDICAL ULTRASOUND IMAGING – CHALLENGES AND SOLUTIONS. Norwegian society for diagnostic ultrasound in medicine Norwegian society for diagnostic ultrasound in medicine ultrasound symposium 2006 , Trondheim 2006-04-27 - 2006-04-29
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Academic lectureHansen, Rune; Johansen, Tonni Franke; Måsøy, Svein-Erik; Näsholm, Sven Peter; Standal, Øyvind; Angelsen, Bjørn Atle J.. (2006) SURF - A better method to detect ultrasound contrast agents and micro-calcifications. NFUD Årsmøte Norsk forening for ultralyd-diagnostikk (NFUD) , Trondheim 2006-04-27 - 2006-04-29
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PosterKaupang, Halvard; Måsøy, Svein-Erik; Varslot, Trond; Johansen, Tonni Franke; Angelsen, Bjørn Atle J.. (2006) Generation and Aberration of Second-Harmonic Ultrasound Beams in Heterogeneous Tissue. IEEE-UFFC 2006 IEEE International Ultrasonics Symposium , Vancouver 2006-10-03 - 2006-10-06
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PosterNäsholm, Sven Peter; Hansen, Rune; Måsøy, Svein-Erik; Standal, Øyvind; Johansen, Tonni Franke; Angelsen, Bjørn. (2006) Reverberation suppression using SURF as an alternative to second harmonic. IEEE Ultrasonics, Ferroelectrics, and Frequency Control Soci IEEE International Ultrasonics Symposium , Vancouver 2006-10-04 - 2006-10-06
2005
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PosterDursun, Safiye Emilie Slettvold; Varslot, Trond; Johansen, Tonni Franke; Angelsen, Bjørn Atle J.; Torp, Hans. (2005) Fast 3D simulation of 2nd harmonic ultrasound field from arbitrary transducer geometries. IEEE-UFFC 2005 IEEE-UFFC Ultrasonics Symposium , Rotterdam 2005-09-18 - 2005-09-21
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Popular scientific lectureJohansen, Tonni Franke; Angelsen, Bjørn Atle J.. (2005) Versatile Analysis of Multilayer Piezoelectric Transducers Using an Admittance Matrix Approach. The Norwegian Physical Society 28th Scandinavian Symposium on Physical Acoustics , Ustaoset 2005-01-23 - 2005-01-26
2004
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PosterNäsholm, Sven Peter; Johansen, Tonni Franke; Angelsen, Bjørn Atle J.. (2004) Effect of a Curved Dome on the Effective Foci of an Annular Array - Numerical Simulations and Experimental Measurements. IEEE UFFC 2004 IEEE International Ultrasonics, Ferroelectrics, and Frequency Control 50th Anniversary Joint Conference , Montréal 2004-08-24 - 2004-08-27
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PosterHansen, Rune; Johansen, Tonni Franke; Burns, Peter N.; Angelsen, Bjørn Atle J.. (2004) Contrast Agent Detection through Low Frequency Manipulation of High Frequency Scattering Properties. IEEE UFFC IEEE International Ultrasonics, Ferroelectrics, and Frequency Control 50th Anniversary Joint Conference , Montreal 2004-08-24 - 2004-08-27
2003
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Academic lectureVarslot, Trond; Dursun, Safiye; Johansen, Tonni Franke; Hansen, Rune; Angelsen, Bjørn Atle J.; Torp, Hans. (2003) Influence of Acoustic Intensity on the Second-harmonic Beam-profile. IEEE Ultrasonics Symposium , Honolulu, Hawaii 2003-10-08 -
2002
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PosterTorp, Hans; Johansen, Tonni Franke. (2002) NONLINEAR WAVEPROPAGATION � A FAST 3D SIMULATION METHOD BASED ON QUASI-LINEAR APPROXIMATION OF THE SECOND HARMONIC FIELD. 2002 IEEE Ultrasonics Symposium , Munchen 2002-10-11 -
2001
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Academic lectureHansen, Rune; Johansen, Tonni Franke; Angelsen, Bjørn Atle J.. (2001) Reduction of nonlinear contrast agent scattering due to nonlinear wave propagation. 2001 IEEE international ultrasonics symposium , Atlanta, Georgia 2001-10-07 - 2001-10-10
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PosterHansen, Rune; Johansen, Tonni Franke; Angelsen, Bjørn Atle J.. (2001) Effect of nonlinear incident pulse propagation distortion on nonlinear contrast agent scattering. The sixth european symposium on ultrasound contrast imaging , Rotterdam 2001-01-25 - 2001-01-26