Geirmund Unsgård
Publications
2021
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Del Bene, Massimiliano;
DiMeco, Francesco;
Unsgård, Geirmund.
(2021)
Editorial: Intraoperative Ultrasound in Brain Tumor Surgery: State-Of-The-Art and Future Perspectives.
Frontiers in Oncology
Editorial
2019
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Unsgård, Geirmund;
Sagberg, Lisa Millgård;
Muller, Sebastien;
Selbekk, Tormod.
(2019)
A new acoustic coupling fluid with ability to reduce ultrasound
imaging artefacts in brain tumour surgery - a phase I study.
Acta Neurochirurgica
Academic article
-
Bø, Hans Kristian;
Solheim, Ole;
Kvistad, Kjell Arne;
Berntsen, Erik Magnus;
Torp, Sverre Helge;
Skjulsvik, Anne Jarstein.
(2019)
Intraoperative 3D ultrasound-guided resection of diffuse low-grade gliomas: radiological and clinical results.
Journal of Neurosurgery
Academic article
-
Unsgård, Geirmund;
Lindseth, Frank.
(2019)
3D ultrasound-guided resection of low-grade gliomas: principles and clinical examples.
Neurosurgical Focus
Academic article
2018
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Iversen, Daniel Høyer;
Wein, Wolfgang;
Lindseth, Frank;
Unsgård, Geirmund;
Reinertsen, Ingerid.
(2018)
Automatic Intraoperative Correction of Brain Shift for Accurate Neuronavigation.
World Neurosurgery
Academic article
-
Munkvold, Bodil Karoline Ravn;
Jakola, Asgeir Store;
Reinertsen, Ingerid;
Sagberg, Lisa Millgård;
Unsgård, Geirmund;
Solheim, Ole.
(2018)
The diagnostic properties of intraoperative ultrasound in glioma surgery and factors associated with gross total tumor resection.
World Neurosurgery
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
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Xiao, Yiming;
Fortin, Maryse;
Unsgård, Geirmund;
Rivaz, Hassan;
Reinertsen, Ingerid.
(2017)
REtroSpective Evaluation of Cerebral Tumors (RESECT): A clinical database of pre-operative MRI and intra-operative ultrasound in low-grade glioma surgeries.
Medical Physics (Lancaster)
Academic article
-
Munkvold, Bodil Karoline Ravn;
Bø, Hans Kristian;
Jakola, Asgeir Store;
Reinertsen, Ingerid;
Berntsen, Erik Magnus;
Unsgård, Geirmund.
(2017)
Tumor volume assessment in low-grade gliomas: a comparison of preoperative magnetic resonance imaging to coregistered intraoperative 3-dimensional ultrasound recordings.
Neurosurgery
Academic article
-
Jakola, Asgeir Store;
Skjulsvik, Anne Jarstein;
Myrmel, Kristin Smistad;
Sjåvik, Kristin;
Unsgård, Geirmund;
Torp, Sverre Helge.
(2017)
Surgical resection versus watchful waiting in low-grade gliomas.
Annals of Oncology
Academic article
2016
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Bartek, Jiri;
Gulati, Sasha;
Unsgård, Geirmund;
Weber, Clemens;
Förander, Petter;
Solheim, Ole.
(2016)
Standardized reporting of adverse events after microvascular decompression of cranial nerves; a population-based single-institution consecutive series.
Acta Neurochirurgica
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
-
Unsgård, Geirmund;
Rao, Vidar;
Solheim, Ole;
Lindseth, Frank.
(2016)
Clinical experience with navigated 3D ultrasound angiography (power Doppler) in microsurgical treatment of brain arteriovenous malformations.
Acta Neurochirurgica
Academic article
-
Selbekk, Tormod;
Solheim, Ole;
Unsgård, Geirmund.
(2016)
Ultrasound-guided neurosurgery: Experiences from 20 years of cross-disciplinary research in Trondheim, Norway.
Neurosurgical Focus
Editorial
2015
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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
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Askeland, Christian;
Solberg, Ole Vegard;
Bakeng, Janne Beate Lervik;
Reinertsen, Ingerid;
Tangen, Geir Arne;
Hofstad, Erlend Fagertun.
(2015)
CustusX: an open-source research platform for image-guided therapy.
International Journal of Computer Assisted Radiology and Surgery
Academic article
-
Jakola, Asgeir Store;
Senft, Christian;
Unsgård, Geirmund;
Solheim, Ole.
(2015)
Surgical Management of Eloquent Supratentorial Low-Grade Gliomas with Special Emphasis on Intraoperative Imaging.
Central European Neurosurgery
Academic article
2014
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Jakola, Asgeir S;
Unsgård, Geirmund;
Myrmel, Kristin Smistad;
Kloster, Roar;
Torp, Sverre Helge;
Sagberg, Lisa Millgård.
(2014)
Surgical strategies in low-grade gliomas and implications for long-term quality of life.
Journal of clinical neuroscience
Academic article
-
Jakola, Asgeir S;
Berntsen, Erik Magnus;
Christensen, Pål;
Gulati, Sasha;
Unsgård, Geirmund;
Kvistad, Kjell Arne.
(2014)
Surgically acquired deficits and diffusion weighted MRI changes after glioma resection - A matched case-control study with blinded neuroradiological assessment.
PLOS ONE
Academic article
-
Reinertsen, Ingerid;
Lindseth, Frank;
Askeland, Christian;
Iversen, Daniel Høyer;
Unsgård, Geirmund.
(2014)
Intra-operative correction of brain-shift.
Acta Neurochirurgica
Academic article
-
Reinertsen, Ingerid;
Jakola, Asgeir Store;
Solheim, Ole;
Lindseth, Frank;
Selbekk, Tormod;
Unsgård, Geirmund.
(2014)
Placement of External Ventricular Drains Using an Average Model.
Lecture Notes in Computer Science (LNCS)
Academic article
-
Jakola, Asgeir S;
Jørgensen, Arve;
Selbekk, Tormod;
Michler, Ralf-Peter;
Solheim, Ole;
Torp, Sverre Helge.
(2014)
Animal study assessing safety of an acoustic coupling fluid that holds the potential to avoid surgically induced artifacts in 3D ultrasound guided operations.
BMC Medical Imaging
Academic article
-
Solheim, Ole;
Jakola, Asgeir Store;
Unsgård, Geirmund.
(2014)
Scientific alchemy and proposed gold standards of care.
World Neurosurgery
Letter to the editor
2013
-
Jakola, Asgeir;
Unsgård, Geirmund;
Kloster, Roar;
Solheim, Ole.
(2013)
Diffuse low-grade gliomas.
Journal of Neurosurgery
Reader opinion piece
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Jakola, Asgeir;
Unsgård, Geirmund;
Myrmel, Kristin Smistad;
Kloster, Roar;
Torp, Sverre Helge;
Losvik, Ole Kristian.
(2013)
Surgical strategy in grade II astrocytoma: a population-based analysis of survival and morbidity with a strategy of early resection as compared to watchful waiting.
Acta Neurochirurgica
Academic article
-
Jakola, Asgeir;
Reinertsen, Ingerid;
Selbekk, Tormod;
Solheim, Ole;
Lindseth, Frank;
Gulati, Sasha.
(2013)
Three dimensional ultrasound guided placement of ventricular catheters.
World Neurosurgery
Academic article
-
Jakola, Asgeir;
Solheim, Ole;
Unsgård, Geirmund.
(2013)
Risks and benefits of brain tumor surgery - a balancing act.
NTNU
Doctoral dissertation
-
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
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Solheim, Ole;
Jakola, Asgeir S;
Lindseth, Frank;
Unsgård, Geirmund.
(2013)
Lavgradige gliom – en hjernekirurgisk balansekunst.
Kirurgen
Article in business/trade/industry journal
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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
-
Reinertsen, Ingerid;
Jakola, Asgeir S;
Solheim, Ole;
Lindseth, Frank;
Unsgård, Geirmund.
(2013)
Model-guided Placement of Cerebral Ventricular Catheters.
Lecture Notes in Computer Science (LNCS)
Academic article
2012
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Reinertsen, Ingerid;
Jakola, Asgeir S;
Friderichsen, Peter;
Lindseth, Frank;
Solheim, Ole;
Selbekk, Tormod.
(2012)
A new system for 3D ultrasound-guided placement of cerebral ventricle catheters.
International Journal of Computer Assisted Radiology and Surgery
Academic article
-
Jakola, Asgeir S;
Myrmel, Kristin Smistad;
Kloster, Roar;
Torp, Sverre Helge;
Lindal, Sigurd;
Unsgård, Geirmund.
(2012)
Comparison of a Strategy Favoring Early Surgical Resection vs a Strategy Favoring Watchful Waiting in Low-Grade Gliomas.
Journal of the American Medical Association (JAMA)
Academic article
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Sæther, Carl Andrew;
Torsteinsen, Magne;
Torp, Sverre Helge;
Sundstrøm, Stein Harald;
Unsgård, Geirmund;
Solheim, Ole.
(2012)
Did survival improve after the implementation of intraoperative neuronavigation and 3D ultrasound in glioblastoma surgery? A retrospective analysis of 192 primary operations.
Minimally Invasive Neurosurgery
Academic article
-
Lindseth, Frank;
Langø, Thomas;
Selbekk, Tormod;
Tangen, Geir Arne;
Hofstad, Erlend Fagertun;
Unsgård, Geirmund.
(2012)
Navigasjonsteknologi blir benyttet innenfor stadig flere kliniske områder.
Kirurgen
Article in business/trade/industry journal
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Jakola, Asgeir S;
Unsgård, Geirmund;
Myrmel, Kristin Smistad;
Kloster, Roar;
Torp, Sverre Helge;
Lindal, Sigurd.
(2012)
Low Grade Gliomas in Eloquent Locations – Implications for Surgical Strategy, Survival and Long Term Quality of Life.
PLOS ONE
Academic article
-
Selbekk, Tormod;
Brekken, Reidar;
Indergaard, Marit Kristina;
Solheim, Ole;
Unsgård, Geirmund.
(2012)
Comparison of contrast in brightness mode and strain ultrasonography of glial brain tumours.
BMC Medical Imaging
Academic article
2011
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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
-
Jakola, Asgeir S;
Gulati, Sasha;
Weber, Clemens;
Unsgård, Geirmund;
Solheim, Ole.
(2011)
Postoperative deterioration in health related quality of life as predictor for survival in patients with glioblastoma: a prospective study.
PLOS ONE
Academic article
-
Unsgård, Geirmund;
Solheim, Ole;
Lindseth, Frank;
Selbekk, Tormod.
(2011)
Intra-operative imaging with 3D ultrasound in neurosurgery.
Acta Neurochirurgica Supplementum
Academic article
-
Solheim, Ole;
Unsgård, Geirmund;
Nygaard, Øystein Petter.
(2011)
Ultrasound guided surgery in patients with intracranial tumours.
NTNU
Doctoral dissertation
-
Mårvik, Ronald;
Myhre, Hans Olav;
Unsgård, Geirmund.
(2011)
Experimental Surgery in Trondheim.
Academic chapter/article/Conference paper
-
Jakola, Asgeir S;
Unsgård, Geirmund;
Solheim, Ole.
(2011)
Quality of life in patients with intracranial gliomas: the impact of modern image-guided surgery.
Journal of Neurosurgery
Academic article
2010
-
Unsgård, Geirmund.
(2010)
GPS til hjernen. St. Olavs Hospital i Trondheim har siden 1990-tallet ligget i front på bruken av tredimensjonal ultralyd ved hjernekirurgi. Nå vil sykehuset teste ut nytten av verktøyet på andre typer operasjoner.
Dagens medisin
Reader opinion piece
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Solheim, Ole;
Selbekk, Tormod;
Jakola, Asgeir S;
Unsgård, Geirmund.
(2010)
Ultrasound-guided operations in unselected high-grade gliomas-overall results, impact of image quality and patient selection.
Acta Neurochirurgica
Academic article
-
Berntsen, Erik Magnus;
Gulati, Sasha;
Solheim, Ole;
Kvistad, Kjell Arne;
Torp, Sverre Helge;
Selbekk, Tormod.
(2010)
Functional magnetic resonance imaging and diffusion tensor tractography incorporated into an intraoperative 3-dimensional ultrasound-based neuronavigation system: impact on therapeutic strategies, extent of resection, and clinical outcome.
Neurosurgery
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
-
Selbekk, Tormod;
Brekken, Reidar;
Solheim, Ole;
Lydersen, Stian;
Hernes, Toril A. Nagelhus;
Unsgård, Geirmund.
(2010)
Tissue motion and strain in the human brain assessed by intraoperative ultrasound in glioma patients.
Ultrasound in Medicine and Biology
Academic article
2009
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Gulati, Sasha;
Berntsen, Erik Magnus;
Solheim, Ole;
Kvistad, Kjell Arne;
Håberg, Asta;
Selbekk, Tormod.
(2009)
Surgical resection of high-grade gliomas in eloquent regions guided by blood oxygenation level dependent functional magnetic resonance imaging, diffusion tensor tractography, and intraoperative navigated 3D ultrasound.
Minimally Invasive Neurosurgery
Academic article
-
Berntsen, Erik Magnus;
Gulati, Sasha;
Solheim, O.;
Kvistad, Kjell Arne;
Lindseth, F;
Unsgård, Geirmund.
(2009)
Integrated Pre- and Intraoperative Imaging in a Patient with an Arteriovenous Malformation Located in Eloquent Cortex.
Minimally Invasive Neurosurgery
Academic article
-
Sindou, Marc;
Unsgård, Geirmund.
(2009)
Practical Handbook of Neurosurgery.
Springer
Springer
Academic anthology/Conference proceedings
-
Selbekk, Tormod;
Solheim, Ole;
Tangen, Geir Arne;
Solberg, Ole Vegard;
Bø, Lars Eirik;
Unsgård, Geirmund.
(2009)
Navigational high-resolution 3D ultrasound in spine tumour surgery — technical assessment.
International Journal of Computer Assisted Radiology and Surgery
Abstract
-
Unsgård, Geirmund.
(2009)
Ultrasound-guided neurosurgery.
Springer
Academic chapter/article/Conference paper
2008
-
Solheim, Ole;
Selbekk, Tormod;
Tangen, Geir Arne;
Solberg, Ole Vegard;
Kolstad, Frode;
Unsgård, Geirmund.
(2008)
Ultralyd ved spinalkirurgi - teknologiutvikling.
Vitenskapelige forhandlinger - De norske kirurgiske foreninger
Abstract
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Rygh, Ola Morten;
Selbekk, T;
Torp, Sverre Helge;
Lydersen, Stian;
Hernes, Toril A. Nagelhus;
Unsgård, Geirmund.
(2008)
Comparison of navigated 3D ultrasound findings with histopathology in subsequent phases of glioblastoma resection.
Acta Neurochirurgica
Academic article
-
Rygh, Ola Morten;
Unsgård, Geirmund.
(2008)
3D ultrasound based neuronavigation in neurosurgery, A Clinical Evaluation.
Tapir Akademisk Forlag
Tapir Akademisk Forlag
Doctoral dissertation
2007
-
Unsgård, Geirmund;
Ommedal, S;
Rygh, Ola Morten;
Lindseth, Frank.
(2007)
Operation of arteriovenous malformations assisted by stereoscopic navigation-controlled display of preoperative magnetic resonance angiography and intraoperative ultrasound angiography.
Neurosurgery
Academic literature review
-
Rasmussen jr., Inge-Andre;
Lindseth, Frank;
Rygh, Ola Morten;
Berntsen, Erik Magnus;
Selbekk, Tormod;
Xu, Jian.
(2007)
Functional neuronavigation combined with intra-operative 3D ultrasound: Initial experiences during surgical resections close to eloquent brain areas and future directions in automatic brain shift compensation of preoperative data.
Acta Neurochirurgica
Academic article
-
Reinertsen, I;
Lindseth, Frank;
Unsgård, Geirmund;
Collins, DL.
(2007)
Clinical validation of vessel-based registration for correction of brain-shift.
Medical Image Analysis
Academic article
2006
-
Unsgård, Geirmund;
Rygh, Ola;
Selbekk, Tormod;
Müller, T.B.;
Kolstad, Frode;
Lindseth, Frank.
(2006)
Intra-operative 3D ultrasound in neurosurgery.
Acta Neurochirurgica
Academic literature review
-
Kolstad, Frode;
Rygh, Ola;
Selbekk, Tormod;
Unsgård, Geirmund;
Nygaard, Øystein P.
(2006)
Three-dimensional ultrasonography navigation in spinal cord tumor surgery - Technical note.
Journal of Neurosurgery : Spine
Academic article
-
Rygh, Ola;
Hernes, Toril A. Nagelhus;
Lindseth, Frank;
Selbekk, Tormod;
Müller, Tomm Brostrup;
Unsgård, Geirmund.
(2006)
Intraoperative navigated 3-dimensional ultrasound angiography in tumor surgery.
Surgical Neurology
Academic article
-
Hernes, Toril A. Nagelhus;
Lindseth, Frank;
Selbekk, Tormod;
Wollf, Arild;
Solberg, Ole Vegard;
Harg, Erik.
(2006)
Computer-assisted 3D ultrasound-guided neurosurgery: technological contributions, including multimodal registration and advanced display, demonstrating future perspectives.
International Journal of Medical Robotics and Computer Assisted Surgery
Academic article
-
Rygh, Ola;
Cappelen, Johan;
Selbekk, Tormod;
Lindseth, Frank;
Hernes, Toril A. Nagelhus;
Unsgård, Geirmund.
(2006)
Endoscopy guided by an intraoperative 3D ultrasound-based neuronavigation system.
Minimally Invasive Neurosurgery
Academic article
2005
-
Unsgård, Geirmund;
Rygh, Ola;
Selbekk, Tormod;
Müller, T. B.;
Kolstad, Frode;
Lindseth, F.
(2005)
Intra-operative 3D Ultrasound in Neurosurgery.
Acta Neurochirurgica
Academic literature review
-
Unsgård, Geirmund;
Selbekk, Tormod;
Muller, Tomm;
Ommedal, Steinar;
Torp, Sverre Helge;
Myhr, Gunnar.
(2005)
Ability of Navigated 3D Ultrasound to Delineate Gliomas and Metastases - Comparison of Image Interpretations with Histopathology.
Acta Neurochirurgica
Academic article
-
Unsgård, Geirmund;
Ommedal, Steinar;
Rygh, O. M.;
Lindseth, F.
(2005)
Operation of arteriovenous malformations assisted by stereoscopic navigation-controlled display of preoperative magnetic resonance angiography and intraoperative ultrasound angiography.
Neurosurgery
Academic article
-
Meling, Torstein Ragnar;
Helseth, Eirik;
Unsgård, Geirmund;
Lote, Knut;
Nakstad, Per Hjalmar;
Wester, Knut.
(2005)
Brain metastases in adults.
Tidsskrift for Den norske legeforening
Academic article
-
Selbekk, Tormod;
Bang, Jon;
Unsgård, Geirmund.
(2005)
Strain processing of intraoperative ultrasound images of brain tumours: initial results.
Ultrasound in Medicine and Biology
Academic article
2004
-
Eloqayli, Haytham;
Gøtestam, K Gunnar;
Unsgård, Geirmund;
Sonnewald, Ursula.
(2004)
Changes of glial-neuronal interaction and metabolism after a subconvulsive dose of pentylenetetrazole.
Neurochemistry International
Academic article
-
Håberg, Asta Kristine;
Kvistad, Kjell Arne;
Unsgård, Geirmund;
Haraldseth, Olav.
(2004)
Preoperative blood oxygen level-dependent functional magnetic resonance imaging in patients with primary brain tumors: Clinical application and outcome.
Neurosurgery
Academic article
2003
-
Bull, Kirsti Strøm;
Roll-Hansen, Nils;
Kvernmo, Siv;
Unsgård, Geirmund;
Nordby, Andreas;
Tapper, Nina Mår.
(2003)
Granskning av påstander om uetisk medisinsk forskning på mennesker.
Norges offentlige utredninger 2003:33
Report
-
Eloqayli, Haytham;
Dahl, Carl Bredo;
Gøtestam, K Gunnar;
Unsgård, Geirmund;
Hadidi, Hakam;
Sonnewald, Ursula.
(2003)
Pentylenetetrazole decreases metabolic glutamate turnover in rat brain.
Journal of Neurochemistry
Academic article
-
Helseth, Eirik;
Due-Tønnessen, Bernt;
Lundar, Tryggve;
Scheie, David;
Skullerud, Kari Petra;
Wesenberg, Finn.
(2003)
Intrakraniale svulster hos barn.
Tidsskrift for Den norske legeforening
Academic article
-
Helseth, Eirik;
Meling, Torstein;
Lundar, Tryggve;
Scheie, David;
Skullerud, Kari Petra;
Lote, Knut.
(2003)
Intrakraniale svulster hos voksne.
Tidsskrift for Den norske legeforening
Academic article
-
Helseth, Eirik;
Meling, Torstein;
Lundar, Trygve;
Scheie, David;
Skullerud, Kari;
Lote, Knut.
(2003)
Intrakraniale svulster hos voksne.
Tidsskrift for Den norske legeforening
Academic article
-
Helseth, Eirik;
Due-Tønnessen, Bernt J;
Lundar, Trygve;
Scheie, David;
Skullerud, Kari;
Wesenberg, Finn.
(2003)
Intracraniale svulster hos barn.
Tidsskrift for Den norske legeforening
Academic article
-
Helseth, Eirik;
Meling, Torstein Ragnar;
Lundar, Tryggve;
Scheie, David;
Skullerud, Kari Petra;
Unsgård, Geirmund.
(2003)
Intracranial tumors in adults.
Tidsskrift for Den norske legeforening
Academic article
2002
-
Eloqayli, Haytham;
Qu, Hong;
Unsgård, Geirmund;
Sletvold, Olav;
Hadidi, Hakam;
Sonnewald, Ursula.
(2002)
Effects of pentylenetetrazole and glutamate on metabolism of [U-13C]glucose in cultured cerebellar granule neurons.
Neurochemistry International
Academic article
2001
-
Qu, Hong;
Eloqayli, Haytham;
Unsgård, Geirmund;
Sonnewald, Ursula.
(2001)
Glutamate decreases pyruvate carboxylase activity and spares glucose as energy substrate in cultured cerebellar astrocytes.
Journal of Neuroscience Research
Academic article
2000
-
Qu, Hong;
Waagepetersen, Helle S.;
van Hengel, Marike;
Wolt, Saskia;
Dale, Ola;
Unsgård, Geirmund.
(2000)
Effects of thiopental on transport and metabolism of glutamate in cultured cerebellar granule neurons.
Neurochemistry International
Academic article
-
Qu, Hong;
Håberg, Asta Kristine;
Haraldseth, Olav;
Unsgård, Geirmund;
Sonnewald, Ursula.
(2000)
13C MRS study of lactate as cerebral substrate for rat brain.
Developmental Neuroscience
Academic article
-
Håberg, Asta Kristine;
Qu, Hong;
Haraldseth, Olav;
Unsgård, Geirmund;
Sonnewald, Ursula.
(2000)
In vivo effects of adenosine A1 receptor agonists and antagonist on neuronal and astrocytic intermediary metabolism studied with ex vivo %1%3C NMR spectroscopy.
Journal of Neurochemistry
Academic article
-
Zwart, John-Anker;
Børset, Magne;
Sand, Trond;
Bovim, Gunnar;
Unsgård, Geirmund.
(2000)
The levels of hepatocyte growth factor is elevated in cerebrospinal fluid from patients with degenerative spinal stenosis.
John-Anker Zwart: Lumbar nerve root compression Biochemical & Neurophysiological aspects. Ph.D.thesis.
Academic monograph
1999
-
Zwart, John-Anker;
Iversen, OJ;
Sand, Trond;
Dale, LG;
Unsgård, Geirmund.
(1999)
Higher levels of antibodies against the psoriasis-associated antigen Pso p27 in cerebrospinal fluid from patients with low back pain and sciatica.
Spine
Academic article
-
Qu, Hong;
Færø, Erik;
Jørgensen, Paal;
Dale, Ola;
Gisvold, Sven Erik;
Unsgård, Geirmund.
(1999)
Decreased glutamate metabolism in cultured astrocytes in the presence of thiopental.
Biochemical Pharmacology
Academic article
1998
-
Håberg, Asta Kristine;
Qu, Hong;
Bakken, Inger Johanne;
Sande, Leif Magne;
White, Linda;
Haraldseth, Olav.
(1998)
In vitro and ex vivo %1%3C-NMR spectroscopy studies of pyruvate recycling in brain.
Developmental Neuroscience
Academic article
-
Zwart, John-Anker;
Sand, Trond;
Unsgård, Geirmund.
(1998)
Warm and cold sensory thresholds in patients with unilateral sciatica: C fibers are more severely affected than A-delta fibers.
Acta Neurologica Scandinavica
Academic article
-
Bakken, Inger Johanne;
White, Linda;
Unsgård, Geirmund;
Aasly, Jan;
Sonnewald, Ursula.
(1998)
@<U-%1%3C@>glutamate metabolism in astrocytes during hypoglycemia and hypoxia.
Journal of Neuroscience Research
Academic article
-
Bakken, Ingen Johanne;
White, Linda;
Aasly, Jan;
Unsgård, Geirmund;
Sonnewald, Ursula.
(1998)
@<U-%1%3C@> aspartate metabolism in cultured cortical astrocytes and cerebellar granule neurons studied by NMR spectroscopy.
Glia
Academic article
-
Håberg, Asta Kristine;
Qu, Hong;
Haraldseth, Olav;
Unsgård, Geirmund;
Sonnewald, Ursula.
(1998)
In vivo Injection of 1-13C Glucose and 1,2-13C Acetate Combined With Ex Vivo 13C Nuclear Magnetic Resonance Spectroscopy : A Novel Approachto the Study of Middle Cerebral Artery Occlusion in the Rat.
Journal of Cerebral Blood Flow and Metabolism
Academic article
-
Bakken, Inger Johanne;
White, Linda;
Unsgård, Geirmund;
Aasly, Jan;
Sonnewald, Ursula.
(1998)
@<U-%1%3C@>-glutamate Metabolism in Astrocytes During Hypoglycemia and Hypoxia.
Journal of Neuroscience Research
Academic article
1997
-
Bakken, Inger Johanne;
White, Linda;
Aasly, Jan;
Unsgård, Geirmund;
Sonnewald, Ursula.
(1997)
Lactate formation from @<U-%1%3C@>asparatate in cultured astrocytes : compartmentation of pyruvate metabolism.
Neuroscience Letters
Academic article
-
Bakken, Inger Johanne;
Johnsen, Svein F.;
White, Linda;
Unsgård, Geirmund;
Aasly, Jan;
Sonnewald, Ursula.
(1997)
NMR Spectroscopy Study of the Effect of 3-Nitropropionic Acid on Glutamate Metabolism in Cultured Astrocytes.
Journal of Neuroscience Research
Academic article
-
Zwart, John-Anker;
Gårseth, Mari;
Sonnewald, Ursula;
Dale, Leif-Gunnar;
White, Linda;
Aasly, Jan.
(1997)
Nuclear magnetic resonance spectroscopy of cerebrospinal fluid from patients with low back pain and sciatica.
Spine
Academic article
-
Aasly, Jan;
Gårseth, Mari;
Sonnewald, Ursula;
Zwart, John-Anker;
White, Linda;
Unsgård, Geirmund.
(1997)
Cerebrospinal fluid lactate and glutamine are reduced in multiple sclerosis.
Acta Neurologica Scandinavica
Academic article
-
Bakken, Inger Johanne;
Johnsen, Svein F.;
White, Linda;
Unsgård, Geirmund;
Aasly, Jan;
Sonnewald, Ursula.
(1997)
NMR spectroscopy study of the effect of 3-nitropropionic acid on glutamate metabolism in cultured astrocytes.
Journal of Neuroscience Research
Academic article
-
Bakken, Inger Johanne;
White, Linda;
Aasly, Jan;
Unsgård, Geirmund;
Sonnewald, Ursula.
(1997)
Lactate formation from @<U-%1%3C@>aspartate in cultured astrocytes : compartmentation of pyruvate metabolism.
Neuroscience Letters
Academic article
1996
-
Grønningsæter, Åge;
Unsgård, Geirmund;
Ommedal, Steinar;
Angelsen, Bjørn Atle J..
(1996)
Ultrasound-guided neurosurgery : a feasibility study in the 3-30 MHz frequency range.
British Journal of Neurosurgery
Academic article
-
Sonnewald, Ursula;
White, Linda;
Ødegård, Elin;
Westergaard, Niels;
Bakken, Inger J.;
Aasly, Jan.
(1996)
MRS study of glutamate metabolism in cultured neurons/glia.
Neurochemical Research
Academic article
1995
-
Muller, Tomm;
Haraldseth, Olav;
Jones, Richard;
Sebastiani, Giovanni;
Godtliebsen, Fred;
Lindboe, Christian.
(1995)
Combined perfusion MR imaging and diffusion weighted imaging in a rat model of reversible middle cerebral artery occlusion.
Stroke
Academic article
-
Sonnewald, Ursula;
Müller, T.;
Unsgård, Geirmund;
Petersen, Steffen B..
(1995)
Effects of aspartame on 45Ca influx and LDH leakage from nerve cells in culture.
NeuroReport
Academic article
1994
-
Müller, T.B.;
Sonnewald, Ursula;
Westergaard, N.;
Schousboe, Arne;
Petersen, Steffen B.;
Unsgård, Geirmund.
(1994)
13C NMR spectroscopy study of cortical nerve cell cultures exposed to hypoxia.
Journal of Neuroscience Research
Academic article
-
Hassel, Bjørnar;
Sonnewald, Ursula;
Unsgård, Geirmund;
Fonnum, Frode.
(1994)
NMR spectroscopy of cultured astrocytes: effects of glutamine and the gliotoxin fluorocitrate.
Journal of Neurochemistry
Academic article
1993
-
Hassel, Bjørnar;
Sonnewald, Ursula;
Westergaard, Niels;
Muller, TB;
Fonnum, Frode;
Unsgård, Geirmund.
(1993)
NMR spectroscopic studies of 13C acetate and 13C glucose metabolism in neocortical astrocytes: evidence for mitochondrial heterogeneity.
Developmental Neuroscience
Academic article
1992
-
Haraldseth, Olav;
Grønås, Terje;
Southon, Timothy;
Thommessen, Line;
Borchgrevink, Grethe;
Jynge, Per.
(1992)
The effect of brain temperature on temporary global ischaemia in rat brain. A 31-phosphorous NMR spectroscopy study.
Acta Anaesthesiologica Scandinavica
Academic literature review
Journal publications
-
Del Bene, Massimiliano;
DiMeco, Francesco;
Unsgård, Geirmund.
(2021)
Editorial: Intraoperative Ultrasound in Brain Tumor Surgery: State-Of-The-Art and Future Perspectives.
Frontiers in Oncology
Editorial
-
Unsgård, Geirmund;
Sagberg, Lisa Millgård;
Muller, Sebastien;
Selbekk, Tormod.
(2019)
A new acoustic coupling fluid with ability to reduce ultrasound
imaging artefacts in brain tumour surgery - a phase I study.
Acta Neurochirurgica
Academic article
-
Bø, Hans Kristian;
Solheim, Ole;
Kvistad, Kjell Arne;
Berntsen, Erik Magnus;
Torp, Sverre Helge;
Skjulsvik, Anne Jarstein.
(2019)
Intraoperative 3D ultrasound-guided resection of diffuse low-grade gliomas: radiological and clinical results.
Journal of Neurosurgery
Academic article
-
Unsgård, Geirmund;
Lindseth, Frank.
(2019)
3D ultrasound-guided resection of low-grade gliomas: principles and clinical examples.
Neurosurgical Focus
Academic article
-
Iversen, Daniel Høyer;
Wein, Wolfgang;
Lindseth, Frank;
Unsgård, Geirmund;
Reinertsen, Ingerid.
(2018)
Automatic Intraoperative Correction of Brain Shift for Accurate Neuronavigation.
World Neurosurgery
Academic article
-
Munkvold, Bodil Karoline Ravn;
Jakola, Asgeir Store;
Reinertsen, Ingerid;
Sagberg, Lisa Millgård;
Unsgård, Geirmund;
Solheim, Ole.
(2018)
The diagnostic properties of intraoperative ultrasound in glioma surgery and factors associated with gross total tumor resection.
World Neurosurgery
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
-
Xiao, Yiming;
Fortin, Maryse;
Unsgård, Geirmund;
Rivaz, Hassan;
Reinertsen, Ingerid.
(2017)
REtroSpective Evaluation of Cerebral Tumors (RESECT): A clinical database of pre-operative MRI and intra-operative ultrasound in low-grade glioma surgeries.
Medical Physics (Lancaster)
Academic article
-
Munkvold, Bodil Karoline Ravn;
Bø, Hans Kristian;
Jakola, Asgeir Store;
Reinertsen, Ingerid;
Berntsen, Erik Magnus;
Unsgård, Geirmund.
(2017)
Tumor volume assessment in low-grade gliomas: a comparison of preoperative magnetic resonance imaging to coregistered intraoperative 3-dimensional ultrasound recordings.
Neurosurgery
Academic article
-
Jakola, Asgeir Store;
Skjulsvik, Anne Jarstein;
Myrmel, Kristin Smistad;
Sjåvik, Kristin;
Unsgård, Geirmund;
Torp, Sverre Helge.
(2017)
Surgical resection versus watchful waiting in low-grade gliomas.
Annals of Oncology
Academic article
-
Bartek, Jiri;
Gulati, Sasha;
Unsgård, Geirmund;
Weber, Clemens;
Förander, Petter;
Solheim, Ole.
(2016)
Standardized reporting of adverse events after microvascular decompression of cranial nerves; a population-based single-institution consecutive series.
Acta Neurochirurgica
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
-
Unsgård, Geirmund;
Rao, Vidar;
Solheim, Ole;
Lindseth, Frank.
(2016)
Clinical experience with navigated 3D ultrasound angiography (power Doppler) in microsurgical treatment of brain arteriovenous malformations.
Acta Neurochirurgica
Academic article
-
Selbekk, Tormod;
Solheim, Ole;
Unsgård, Geirmund.
(2016)
Ultrasound-guided neurosurgery: Experiences from 20 years of cross-disciplinary research in Trondheim, Norway.
Neurosurgical Focus
Editorial
-
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
-
Askeland, Christian;
Solberg, Ole Vegard;
Bakeng, Janne Beate Lervik;
Reinertsen, Ingerid;
Tangen, Geir Arne;
Hofstad, Erlend Fagertun.
(2015)
CustusX: an open-source research platform for image-guided therapy.
International Journal of Computer Assisted Radiology and Surgery
Academic article
-
Jakola, Asgeir Store;
Senft, Christian;
Unsgård, Geirmund;
Solheim, Ole.
(2015)
Surgical Management of Eloquent Supratentorial Low-Grade Gliomas with Special Emphasis on Intraoperative Imaging.
Central European Neurosurgery
Academic article
-
Jakola, Asgeir S;
Unsgård, Geirmund;
Myrmel, Kristin Smistad;
Kloster, Roar;
Torp, Sverre Helge;
Sagberg, Lisa Millgård.
(2014)
Surgical strategies in low-grade gliomas and implications for long-term quality of life.
Journal of clinical neuroscience
Academic article
-
Jakola, Asgeir S;
Berntsen, Erik Magnus;
Christensen, Pål;
Gulati, Sasha;
Unsgård, Geirmund;
Kvistad, Kjell Arne.
(2014)
Surgically acquired deficits and diffusion weighted MRI changes after glioma resection - A matched case-control study with blinded neuroradiological assessment.
PLOS ONE
Academic article
-
Reinertsen, Ingerid;
Lindseth, Frank;
Askeland, Christian;
Iversen, Daniel Høyer;
Unsgård, Geirmund.
(2014)
Intra-operative correction of brain-shift.
Acta Neurochirurgica
Academic article
-
Reinertsen, Ingerid;
Jakola, Asgeir Store;
Solheim, Ole;
Lindseth, Frank;
Selbekk, Tormod;
Unsgård, Geirmund.
(2014)
Placement of External Ventricular Drains Using an Average Model.
Lecture Notes in Computer Science (LNCS)
Academic article
-
Jakola, Asgeir S;
Jørgensen, Arve;
Selbekk, Tormod;
Michler, Ralf-Peter;
Solheim, Ole;
Torp, Sverre Helge.
(2014)
Animal study assessing safety of an acoustic coupling fluid that holds the potential to avoid surgically induced artifacts in 3D ultrasound guided operations.
BMC Medical Imaging
Academic article
-
Solheim, Ole;
Jakola, Asgeir Store;
Unsgård, Geirmund.
(2014)
Scientific alchemy and proposed gold standards of care.
World Neurosurgery
Letter to the editor
-
Jakola, Asgeir;
Unsgård, Geirmund;
Kloster, Roar;
Solheim, Ole.
(2013)
Diffuse low-grade gliomas.
Journal of Neurosurgery
Reader opinion piece
-
Jakola, Asgeir;
Unsgård, Geirmund;
Myrmel, Kristin Smistad;
Kloster, Roar;
Torp, Sverre Helge;
Losvik, Ole Kristian.
(2013)
Surgical strategy in grade II astrocytoma: a population-based analysis of survival and morbidity with a strategy of early resection as compared to watchful waiting.
Acta Neurochirurgica
Academic article
-
Jakola, Asgeir;
Reinertsen, Ingerid;
Selbekk, Tormod;
Solheim, Ole;
Lindseth, Frank;
Gulati, Sasha.
(2013)
Three dimensional ultrasound guided placement of ventricular catheters.
World Neurosurgery
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
-
Solheim, Ole;
Jakola, Asgeir S;
Lindseth, Frank;
Unsgård, Geirmund.
(2013)
Lavgradige gliom – en hjernekirurgisk balansekunst.
Kirurgen
Article in business/trade/industry journal
-
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
-
Reinertsen, Ingerid;
Jakola, Asgeir S;
Solheim, Ole;
Lindseth, Frank;
Unsgård, Geirmund.
(2013)
Model-guided Placement of Cerebral Ventricular Catheters.
Lecture Notes in Computer Science (LNCS)
Academic article
-
Reinertsen, Ingerid;
Jakola, Asgeir S;
Friderichsen, Peter;
Lindseth, Frank;
Solheim, Ole;
Selbekk, Tormod.
(2012)
A new system for 3D ultrasound-guided placement of cerebral ventricle catheters.
International Journal of Computer Assisted Radiology and Surgery
Academic article
-
Jakola, Asgeir S;
Myrmel, Kristin Smistad;
Kloster, Roar;
Torp, Sverre Helge;
Lindal, Sigurd;
Unsgård, Geirmund.
(2012)
Comparison of a Strategy Favoring Early Surgical Resection vs a Strategy Favoring Watchful Waiting in Low-Grade Gliomas.
Journal of the American Medical Association (JAMA)
Academic article
-
Sæther, Carl Andrew;
Torsteinsen, Magne;
Torp, Sverre Helge;
Sundstrøm, Stein Harald;
Unsgård, Geirmund;
Solheim, Ole.
(2012)
Did survival improve after the implementation of intraoperative neuronavigation and 3D ultrasound in glioblastoma surgery? A retrospective analysis of 192 primary operations.
Minimally Invasive Neurosurgery
Academic article
-
Lindseth, Frank;
Langø, Thomas;
Selbekk, Tormod;
Tangen, Geir Arne;
Hofstad, Erlend Fagertun;
Unsgård, Geirmund.
(2012)
Navigasjonsteknologi blir benyttet innenfor stadig flere kliniske områder.
Kirurgen
Article in business/trade/industry journal
-
Jakola, Asgeir S;
Unsgård, Geirmund;
Myrmel, Kristin Smistad;
Kloster, Roar;
Torp, Sverre Helge;
Lindal, Sigurd.
(2012)
Low Grade Gliomas in Eloquent Locations – Implications for Surgical Strategy, Survival and Long Term Quality of Life.
PLOS ONE
Academic article
-
Selbekk, Tormod;
Brekken, Reidar;
Indergaard, Marit Kristina;
Solheim, Ole;
Unsgård, Geirmund.
(2012)
Comparison of contrast in brightness mode and strain ultrasonography of glial brain tumours.
BMC Medical Imaging
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
-
Jakola, Asgeir S;
Gulati, Sasha;
Weber, Clemens;
Unsgård, Geirmund;
Solheim, Ole.
(2011)
Postoperative deterioration in health related quality of life as predictor for survival in patients with glioblastoma: a prospective study.
PLOS ONE
Academic article
-
Unsgård, Geirmund;
Solheim, Ole;
Lindseth, Frank;
Selbekk, Tormod.
(2011)
Intra-operative imaging with 3D ultrasound in neurosurgery.
Acta Neurochirurgica Supplementum
Academic article
-
Jakola, Asgeir S;
Unsgård, Geirmund;
Solheim, Ole.
(2011)
Quality of life in patients with intracranial gliomas: the impact of modern image-guided surgery.
Journal of Neurosurgery
Academic article
-
Unsgård, Geirmund.
(2010)
GPS til hjernen. St. Olavs Hospital i Trondheim har siden 1990-tallet ligget i front på bruken av tredimensjonal ultralyd ved hjernekirurgi. Nå vil sykehuset teste ut nytten av verktøyet på andre typer operasjoner.
Dagens medisin
Reader opinion piece
-
Solheim, Ole;
Selbekk, Tormod;
Jakola, Asgeir S;
Unsgård, Geirmund.
(2010)
Ultrasound-guided operations in unselected high-grade gliomas-overall results, impact of image quality and patient selection.
Acta Neurochirurgica
Academic article
-
Berntsen, Erik Magnus;
Gulati, Sasha;
Solheim, Ole;
Kvistad, Kjell Arne;
Torp, Sverre Helge;
Selbekk, Tormod.
(2010)
Functional magnetic resonance imaging and diffusion tensor tractography incorporated into an intraoperative 3-dimensional ultrasound-based neuronavigation system: impact on therapeutic strategies, extent of resection, and clinical outcome.
Neurosurgery
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
-
Selbekk, Tormod;
Brekken, Reidar;
Solheim, Ole;
Lydersen, Stian;
Hernes, Toril A. Nagelhus;
Unsgård, Geirmund.
(2010)
Tissue motion and strain in the human brain assessed by intraoperative ultrasound in glioma patients.
Ultrasound in Medicine and Biology
Academic article
-
Gulati, Sasha;
Berntsen, Erik Magnus;
Solheim, Ole;
Kvistad, Kjell Arne;
Håberg, Asta;
Selbekk, Tormod.
(2009)
Surgical resection of high-grade gliomas in eloquent regions guided by blood oxygenation level dependent functional magnetic resonance imaging, diffusion tensor tractography, and intraoperative navigated 3D ultrasound.
Minimally Invasive Neurosurgery
Academic article
-
Berntsen, Erik Magnus;
Gulati, Sasha;
Solheim, O.;
Kvistad, Kjell Arne;
Lindseth, F;
Unsgård, Geirmund.
(2009)
Integrated Pre- and Intraoperative Imaging in a Patient with an Arteriovenous Malformation Located in Eloquent Cortex.
Minimally Invasive Neurosurgery
Academic article
-
Selbekk, Tormod;
Solheim, Ole;
Tangen, Geir Arne;
Solberg, Ole Vegard;
Bø, Lars Eirik;
Unsgård, Geirmund.
(2009)
Navigational high-resolution 3D ultrasound in spine tumour surgery — technical assessment.
International Journal of Computer Assisted Radiology and Surgery
Abstract
-
Solheim, Ole;
Selbekk, Tormod;
Tangen, Geir Arne;
Solberg, Ole Vegard;
Kolstad, Frode;
Unsgård, Geirmund.
(2008)
Ultralyd ved spinalkirurgi - teknologiutvikling.
Vitenskapelige forhandlinger - De norske kirurgiske foreninger
Abstract
-
Rygh, Ola Morten;
Selbekk, T;
Torp, Sverre Helge;
Lydersen, Stian;
Hernes, Toril A. Nagelhus;
Unsgård, Geirmund.
(2008)
Comparison of navigated 3D ultrasound findings with histopathology in subsequent phases of glioblastoma resection.
Acta Neurochirurgica
Academic article
-
Unsgård, Geirmund;
Ommedal, S;
Rygh, Ola Morten;
Lindseth, Frank.
(2007)
Operation of arteriovenous malformations assisted by stereoscopic navigation-controlled display of preoperative magnetic resonance angiography and intraoperative ultrasound angiography.
Neurosurgery
Academic literature review
-
Rasmussen jr., Inge-Andre;
Lindseth, Frank;
Rygh, Ola Morten;
Berntsen, Erik Magnus;
Selbekk, Tormod;
Xu, Jian.
(2007)
Functional neuronavigation combined with intra-operative 3D ultrasound: Initial experiences during surgical resections close to eloquent brain areas and future directions in automatic brain shift compensation of preoperative data.
Acta Neurochirurgica
Academic article
-
Reinertsen, I;
Lindseth, Frank;
Unsgård, Geirmund;
Collins, DL.
(2007)
Clinical validation of vessel-based registration for correction of brain-shift.
Medical Image Analysis
Academic article
-
Unsgård, Geirmund;
Rygh, Ola;
Selbekk, Tormod;
Müller, T.B.;
Kolstad, Frode;
Lindseth, Frank.
(2006)
Intra-operative 3D ultrasound in neurosurgery.
Acta Neurochirurgica
Academic literature review
-
Kolstad, Frode;
Rygh, Ola;
Selbekk, Tormod;
Unsgård, Geirmund;
Nygaard, Øystein P.
(2006)
Three-dimensional ultrasonography navigation in spinal cord tumor surgery - Technical note.
Journal of Neurosurgery : Spine
Academic article
-
Rygh, Ola;
Hernes, Toril A. Nagelhus;
Lindseth, Frank;
Selbekk, Tormod;
Müller, Tomm Brostrup;
Unsgård, Geirmund.
(2006)
Intraoperative navigated 3-dimensional ultrasound angiography in tumor surgery.
Surgical Neurology
Academic article
-
Hernes, Toril A. Nagelhus;
Lindseth, Frank;
Selbekk, Tormod;
Wollf, Arild;
Solberg, Ole Vegard;
Harg, Erik.
(2006)
Computer-assisted 3D ultrasound-guided neurosurgery: technological contributions, including multimodal registration and advanced display, demonstrating future perspectives.
International Journal of Medical Robotics and Computer Assisted Surgery
Academic article
-
Rygh, Ola;
Cappelen, Johan;
Selbekk, Tormod;
Lindseth, Frank;
Hernes, Toril A. Nagelhus;
Unsgård, Geirmund.
(2006)
Endoscopy guided by an intraoperative 3D ultrasound-based neuronavigation system.
Minimally Invasive Neurosurgery
Academic article
-
Unsgård, Geirmund;
Rygh, Ola;
Selbekk, Tormod;
Müller, T. B.;
Kolstad, Frode;
Lindseth, F.
(2005)
Intra-operative 3D Ultrasound in Neurosurgery.
Acta Neurochirurgica
Academic literature review
-
Unsgård, Geirmund;
Selbekk, Tormod;
Muller, Tomm;
Ommedal, Steinar;
Torp, Sverre Helge;
Myhr, Gunnar.
(2005)
Ability of Navigated 3D Ultrasound to Delineate Gliomas and Metastases - Comparison of Image Interpretations with Histopathology.
Acta Neurochirurgica
Academic article
-
Unsgård, Geirmund;
Ommedal, Steinar;
Rygh, O. M.;
Lindseth, F.
(2005)
Operation of arteriovenous malformations assisted by stereoscopic navigation-controlled display of preoperative magnetic resonance angiography and intraoperative ultrasound angiography.
Neurosurgery
Academic article
-
Meling, Torstein Ragnar;
Helseth, Eirik;
Unsgård, Geirmund;
Lote, Knut;
Nakstad, Per Hjalmar;
Wester, Knut.
(2005)
Brain metastases in adults.
Tidsskrift for Den norske legeforening
Academic article
-
Selbekk, Tormod;
Bang, Jon;
Unsgård, Geirmund.
(2005)
Strain processing of intraoperative ultrasound images of brain tumours: initial results.
Ultrasound in Medicine and Biology
Academic article
-
Eloqayli, Haytham;
Gøtestam, K Gunnar;
Unsgård, Geirmund;
Sonnewald, Ursula.
(2004)
Changes of glial-neuronal interaction and metabolism after a subconvulsive dose of pentylenetetrazole.
Neurochemistry International
Academic article
-
Håberg, Asta Kristine;
Kvistad, Kjell Arne;
Unsgård, Geirmund;
Haraldseth, Olav.
(2004)
Preoperative blood oxygen level-dependent functional magnetic resonance imaging in patients with primary brain tumors: Clinical application and outcome.
Neurosurgery
Academic article
-
Eloqayli, Haytham;
Dahl, Carl Bredo;
Gøtestam, K Gunnar;
Unsgård, Geirmund;
Hadidi, Hakam;
Sonnewald, Ursula.
(2003)
Pentylenetetrazole decreases metabolic glutamate turnover in rat brain.
Journal of Neurochemistry
Academic article
-
Helseth, Eirik;
Due-Tønnessen, Bernt;
Lundar, Tryggve;
Scheie, David;
Skullerud, Kari Petra;
Wesenberg, Finn.
(2003)
Intrakraniale svulster hos barn.
Tidsskrift for Den norske legeforening
Academic article
-
Helseth, Eirik;
Meling, Torstein;
Lundar, Tryggve;
Scheie, David;
Skullerud, Kari Petra;
Lote, Knut.
(2003)
Intrakraniale svulster hos voksne.
Tidsskrift for Den norske legeforening
Academic article
-
Helseth, Eirik;
Meling, Torstein;
Lundar, Trygve;
Scheie, David;
Skullerud, Kari;
Lote, Knut.
(2003)
Intrakraniale svulster hos voksne.
Tidsskrift for Den norske legeforening
Academic article
-
Helseth, Eirik;
Due-Tønnessen, Bernt J;
Lundar, Trygve;
Scheie, David;
Skullerud, Kari;
Wesenberg, Finn.
(2003)
Intracraniale svulster hos barn.
Tidsskrift for Den norske legeforening
Academic article
-
Helseth, Eirik;
Meling, Torstein Ragnar;
Lundar, Tryggve;
Scheie, David;
Skullerud, Kari Petra;
Unsgård, Geirmund.
(2003)
Intracranial tumors in adults.
Tidsskrift for Den norske legeforening
Academic article
-
Eloqayli, Haytham;
Qu, Hong;
Unsgård, Geirmund;
Sletvold, Olav;
Hadidi, Hakam;
Sonnewald, Ursula.
(2002)
Effects of pentylenetetrazole and glutamate on metabolism of [U-13C]glucose in cultured cerebellar granule neurons.
Neurochemistry International
Academic article
-
Qu, Hong;
Eloqayli, Haytham;
Unsgård, Geirmund;
Sonnewald, Ursula.
(2001)
Glutamate decreases pyruvate carboxylase activity and spares glucose as energy substrate in cultured cerebellar astrocytes.
Journal of Neuroscience Research
Academic article
-
Qu, Hong;
Waagepetersen, Helle S.;
van Hengel, Marike;
Wolt, Saskia;
Dale, Ola;
Unsgård, Geirmund.
(2000)
Effects of thiopental on transport and metabolism of glutamate in cultured cerebellar granule neurons.
Neurochemistry International
Academic article
-
Qu, Hong;
Håberg, Asta Kristine;
Haraldseth, Olav;
Unsgård, Geirmund;
Sonnewald, Ursula.
(2000)
13C MRS study of lactate as cerebral substrate for rat brain.
Developmental Neuroscience
Academic article
-
Håberg, Asta Kristine;
Qu, Hong;
Haraldseth, Olav;
Unsgård, Geirmund;
Sonnewald, Ursula.
(2000)
In vivo effects of adenosine A1 receptor agonists and antagonist on neuronal and astrocytic intermediary metabolism studied with ex vivo %1%3C NMR spectroscopy.
Journal of Neurochemistry
Academic article
-
Zwart, John-Anker;
Iversen, OJ;
Sand, Trond;
Dale, LG;
Unsgård, Geirmund.
(1999)
Higher levels of antibodies against the psoriasis-associated antigen Pso p27 in cerebrospinal fluid from patients with low back pain and sciatica.
Spine
Academic article
-
Qu, Hong;
Færø, Erik;
Jørgensen, Paal;
Dale, Ola;
Gisvold, Sven Erik;
Unsgård, Geirmund.
(1999)
Decreased glutamate metabolism in cultured astrocytes in the presence of thiopental.
Biochemical Pharmacology
Academic article
-
Håberg, Asta Kristine;
Qu, Hong;
Bakken, Inger Johanne;
Sande, Leif Magne;
White, Linda;
Haraldseth, Olav.
(1998)
In vitro and ex vivo %1%3C-NMR spectroscopy studies of pyruvate recycling in brain.
Developmental Neuroscience
Academic article
-
Zwart, John-Anker;
Sand, Trond;
Unsgård, Geirmund.
(1998)
Warm and cold sensory thresholds in patients with unilateral sciatica: C fibers are more severely affected than A-delta fibers.
Acta Neurologica Scandinavica
Academic article
-
Bakken, Inger Johanne;
White, Linda;
Unsgård, Geirmund;
Aasly, Jan;
Sonnewald, Ursula.
(1998)
@<U-%1%3C@>glutamate metabolism in astrocytes during hypoglycemia and hypoxia.
Journal of Neuroscience Research
Academic article
-
Bakken, Ingen Johanne;
White, Linda;
Aasly, Jan;
Unsgård, Geirmund;
Sonnewald, Ursula.
(1998)
@<U-%1%3C@> aspartate metabolism in cultured cortical astrocytes and cerebellar granule neurons studied by NMR spectroscopy.
Glia
Academic article
-
Håberg, Asta Kristine;
Qu, Hong;
Haraldseth, Olav;
Unsgård, Geirmund;
Sonnewald, Ursula.
(1998)
In vivo Injection of 1-13C Glucose and 1,2-13C Acetate Combined With Ex Vivo 13C Nuclear Magnetic Resonance Spectroscopy : A Novel Approachto the Study of Middle Cerebral Artery Occlusion in the Rat.
Journal of Cerebral Blood Flow and Metabolism
Academic article
-
Bakken, Inger Johanne;
White, Linda;
Unsgård, Geirmund;
Aasly, Jan;
Sonnewald, Ursula.
(1998)
@<U-%1%3C@>-glutamate Metabolism in Astrocytes During Hypoglycemia and Hypoxia.
Journal of Neuroscience Research
Academic article
-
Bakken, Inger Johanne;
White, Linda;
Aasly, Jan;
Unsgård, Geirmund;
Sonnewald, Ursula.
(1997)
Lactate formation from @<U-%1%3C@>asparatate in cultured astrocytes : compartmentation of pyruvate metabolism.
Neuroscience Letters
Academic article
-
Bakken, Inger Johanne;
Johnsen, Svein F.;
White, Linda;
Unsgård, Geirmund;
Aasly, Jan;
Sonnewald, Ursula.
(1997)
NMR Spectroscopy Study of the Effect of 3-Nitropropionic Acid on Glutamate Metabolism in Cultured Astrocytes.
Journal of Neuroscience Research
Academic article
-
Zwart, John-Anker;
Gårseth, Mari;
Sonnewald, Ursula;
Dale, Leif-Gunnar;
White, Linda;
Aasly, Jan.
(1997)
Nuclear magnetic resonance spectroscopy of cerebrospinal fluid from patients with low back pain and sciatica.
Spine
Academic article
-
Aasly, Jan;
Gårseth, Mari;
Sonnewald, Ursula;
Zwart, John-Anker;
White, Linda;
Unsgård, Geirmund.
(1997)
Cerebrospinal fluid lactate and glutamine are reduced in multiple sclerosis.
Acta Neurologica Scandinavica
Academic article
-
Bakken, Inger Johanne;
Johnsen, Svein F.;
White, Linda;
Unsgård, Geirmund;
Aasly, Jan;
Sonnewald, Ursula.
(1997)
NMR spectroscopy study of the effect of 3-nitropropionic acid on glutamate metabolism in cultured astrocytes.
Journal of Neuroscience Research
Academic article
-
Bakken, Inger Johanne;
White, Linda;
Aasly, Jan;
Unsgård, Geirmund;
Sonnewald, Ursula.
(1997)
Lactate formation from @<U-%1%3C@>aspartate in cultured astrocytes : compartmentation of pyruvate metabolism.
Neuroscience Letters
Academic article
-
Grønningsæter, Åge;
Unsgård, Geirmund;
Ommedal, Steinar;
Angelsen, Bjørn Atle J..
(1996)
Ultrasound-guided neurosurgery : a feasibility study in the 3-30 MHz frequency range.
British Journal of Neurosurgery
Academic article
-
Sonnewald, Ursula;
White, Linda;
Ødegård, Elin;
Westergaard, Niels;
Bakken, Inger J.;
Aasly, Jan.
(1996)
MRS study of glutamate metabolism in cultured neurons/glia.
Neurochemical Research
Academic article
-
Muller, Tomm;
Haraldseth, Olav;
Jones, Richard;
Sebastiani, Giovanni;
Godtliebsen, Fred;
Lindboe, Christian.
(1995)
Combined perfusion MR imaging and diffusion weighted imaging in a rat model of reversible middle cerebral artery occlusion.
Stroke
Academic article
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Sonnewald, Ursula;
Müller, T.;
Unsgård, Geirmund;
Petersen, Steffen B..
(1995)
Effects of aspartame on 45Ca influx and LDH leakage from nerve cells in culture.
NeuroReport
Academic article
-
Müller, T.B.;
Sonnewald, Ursula;
Westergaard, N.;
Schousboe, Arne;
Petersen, Steffen B.;
Unsgård, Geirmund.
(1994)
13C NMR spectroscopy study of cortical nerve cell cultures exposed to hypoxia.
Journal of Neuroscience Research
Academic article
-
Hassel, Bjørnar;
Sonnewald, Ursula;
Unsgård, Geirmund;
Fonnum, Frode.
(1994)
NMR spectroscopy of cultured astrocytes: effects of glutamine and the gliotoxin fluorocitrate.
Journal of Neurochemistry
Academic article
-
Hassel, Bjørnar;
Sonnewald, Ursula;
Westergaard, Niels;
Muller, TB;
Fonnum, Frode;
Unsgård, Geirmund.
(1993)
NMR spectroscopic studies of 13C acetate and 13C glucose metabolism in neocortical astrocytes: evidence for mitochondrial heterogeneity.
Developmental Neuroscience
Academic article
-
Haraldseth, Olav;
Grønås, Terje;
Southon, Timothy;
Thommessen, Line;
Borchgrevink, Grethe;
Jynge, Per.
(1992)
The effect of brain temperature on temporary global ischaemia in rat brain. A 31-phosphorous NMR spectroscopy study.
Acta Anaesthesiologica Scandinavica
Academic literature review
Books
-
Sindou, Marc;
Unsgård, Geirmund.
(2009)
Practical Handbook of Neurosurgery.
Springer
Springer
Academic anthology/Conference proceedings
-
Zwart, John-Anker;
Børset, Magne;
Sand, Trond;
Bovim, Gunnar;
Unsgård, Geirmund.
(2000)
The levels of hepatocyte growth factor is elevated in cerebrospinal fluid from patients with degenerative spinal stenosis.
John-Anker Zwart: Lumbar nerve root compression Biochemical & Neurophysiological aspects. Ph.D.thesis.
Academic monograph
Part of book/report
-
Mårvik, Ronald;
Myhre, Hans Olav;
Unsgård, Geirmund.
(2011)
Experimental Surgery in Trondheim.
Academic chapter/article/Conference paper
-
Unsgård, Geirmund.
(2009)
Ultrasound-guided neurosurgery.
Springer
Academic chapter/article/Conference paper
Report
-
Jakola, Asgeir;
Solheim, Ole;
Unsgård, Geirmund.
(2013)
Risks and benefits of brain tumor surgery - a balancing act.
NTNU
Doctoral dissertation
-
Solheim, Ole;
Unsgård, Geirmund;
Nygaard, Øystein Petter.
(2011)
Ultrasound guided surgery in patients with intracranial tumours.
NTNU
Doctoral dissertation
-
Rygh, Ola Morten;
Unsgård, Geirmund.
(2008)
3D ultrasound based neuronavigation in neurosurgery, A Clinical Evaluation.
Tapir Akademisk Forlag
Tapir Akademisk Forlag
Doctoral dissertation
-
Bull, Kirsti Strøm;
Roll-Hansen, Nils;
Kvernmo, Siv;
Unsgård, Geirmund;
Nordby, Andreas;
Tapper, Nina Mår.
(2003)
Granskning av påstander om uetisk medisinsk forskning på mennesker.
Norges offentlige utredninger 2003:33
Report
Knowledge Transfer
2017
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PosterBø, Hans Kristian; Solheim, Ole; Berntsen, Erik Magnus; Unsgård, Geirmund; Jakola, Asgeir Store. (2017) Resection grades after 3D ultrasound guided surgery for low-grade gliomas. Scandinavian Neurosurgical Society 66th Scandinavian Neurosurgical Society Congress 2017 , Copenhagen 2017-05-18 - 2017-05-20
2015
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Academic lectureIversen, 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
2014
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Academic lectureLindseth, Frank; Selbekk, Tormod; Reinertsen, Ingerid; Bakeng, Janne Beate Lervik; Jakola, Asgeir Store; Solheim, Ole. (2014) Ultrasound-based neuronavigation simulations using previous cases for improved interpretation skills. EANS European Association of Neurosurgical Societies (EANS) , Prague, Czech Republic 2014-10-12 - 2014-10-17
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Academic lectureLindseth, Frank; Selbekk, Tormod; Reinertsen, Ingerid; Weie, Stian; Jakola, Asgeir Store; Solheim, Ole. (2014) US-neuro-nav-app: An app for understanding ultrasound-based neuronavigation and learning the art of ultrasound interpretation. EANS European Association of Neurosurgical Societies (EANS) , Prague, Czech Republic 2014-10-12 - 2014-10-17
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Academic lectureSelbekk, Tormod; Brekken, Reidar; Solheim, Ole; Unsgård, Geirmund. (2014) Ultrasound elastography imaging for resection control in brain tumour surgery. EANS European Association of Neurosurgical Societies (EANS) , Prague, Czech Republic 2014-10-12 - 2014-10-17
2013
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Academic lectureJakola, Asgeir; Berntsen, Erik Magnus; Christensen, Pål; Gulati, Sasha; Unsgård, Geirmund; Solheim, Ole. (2013) Acquired deficits and diffusion weighted MRI after glioma resection - a matched case-control study with blinded assessment. Norsk Nevrokirurgisk Forening Nevrokirurgisk høstmøte , Oslo 2013-10-23 - 2013-10-25
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Academic lectureJakola, Asgeir; Berntsen, Erik Magnus; Christensen, Pål; Gulati, Sasha; Unsgård, Geirmund; Kvistad, Kjell Arne. (2013) Surgically acquired deficits and diffusion weighted MRI changes after glioma resection - A matched case-control study with blinded neuroradiological assessment. European Association of Neurosurgical Societies (EANS) Annual meeting of EANS , Tel Aviv 2013-11-11 - 2013-11-14
2012
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Academic lectureSolheim, Ole; Selbekk, Tormod; Bø, Lars Eirik; Cappelen, Johan; Unsgård, Geirmund. (2012) Ultrasound guided transphenoidal surgery. European Asscoiation of European Neurosurgeons EANS Annual Meeting , Bratislava 2012-10-24 - 2012-10-27
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InterviewUnsgård, Geirmund; Jakola, Asgeir S; Solheim, Ole. (2012) Tidlig operasjon bedrer overlevelse ved gliom. Tidsskrift for den norske legeforening Tidsskrift for den norske legeforening [Internet] 2012-10-26
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Academic lectureJakola, Asgeir S; Myrmel, Kristin Smistad; Kloster, Roar; Torp, Sverre Helge; Lindal, Sigurd; Unsgård, Geirmund. (2012) Comparison of a Strategy Favoring Early Surgical Resection vs a Strategy Favoring Watchful Waiting in Low-Grade Gliomas. European assosciation of neurosurgical societies European assosciation of neurosurgical societies Annual meeting , Bratislava 2012-10-24 - 2012-10-27
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Academic lecture
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Academic lectureUnsgård, Geirmund. (2012) 3D ultrasound in neurosurgery. EANS Annual Meeting , Bratislava 2012-10-25 - 2012-10-25
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Academic lectureIversen, 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
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Academic lectureUnsgård, Geirmund. (2012) Use of 3D ultrasound in neurosurgery. University of Torino , Torino 2012-04-27 - 2012-04-27
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Academic lectureSolheim, Ole; Selbekk, Tormod; Bø, Lars Eirik; Cappelen, Johan; Unsgård, Geirmund. (2012) Ultrasound guided transsphenoidal surgery. European Associacion of Neurosurgical Societies EANS, Annual Meeting , Bratislava 2012-10-24 - 2012-10-27
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InterviewUnsgård, Geirmund; Solheim, Ole; Jakola, Asgeir S. (2012) Tidlig operasjon gir lengre levetid for svulstpasienter. NRK NRK [TV] 2012-12-11
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Academic lectureSelbekk, Tormod; Lindseth, Frank; Unsgård, Geirmund. (2012) Acquisition of freehand elastography volumes in brain tumour surgery: preliminary results. University of Texas, University of Rochester International Tissue Elasticity Conference (ITEC) , Deauville 2012-10-02 - 2012-10-05
2011
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Academic lectureJakola, Asgeir S; Reinertsen, Ingerid; Friderichsen, Peter; Selbekk, Tormod; Lindseth, Frank; Solheim, Ole. (2011) 3D ultrasound guided placement of ventricle drain through a standard burr hole. National Centre of 3D US in Neurosurgery/SINTEF/SonoWand 4th International Training Course: 3D Ultrasound and Neuronavigation , Trondheim 2011-06-15 - 2011-06-16
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Academic lectureIversen, 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
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PosterIversen, 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
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
2009
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Academic lectureSelbekk, Tormod; Solheim, Ole; Tangen, Geir Arne; Solberg, Ole Vegard; Bø, Lars Eirik; Unsgård, Geirmund. (2009) Navigational high-resolution 3D ultrasound in spine tumour surgery — technical assessment. 23rd Congress for Computer Assisted Radiology and Surgery (CARS 2009) , Berlin 2009-06-23 - 2009-06-27
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Academic lectureSelbekk, Tormod; Lindseth, Frank; Reinertsen, Ingerid; Solheim, Ole; Tangen, Geir Arne; Solberg, Ole Vegard. (2009) Freehand 3D ultrasound and navigation in neurosurgery — technical requirements. 23rd Congress for Computer Assisted Radiology and Surgery (CARS 2009) , Berlin 2009-06-23 - 2009-06-27
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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 lectureUnsgård, Geirmund; Solheim, Ole; Lindseth, Frank; Selbekk, Tormod. (2009) Intra-operative Ultrasound in Neurosurgery. European Assocciation of Neurosurgical Societies EANS Annual Meeting 2009 , Marseille 2009-03-27 - 2009-03-31
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Academic lectureUnsgård, Geirmund. (2009) Intraoperative ultrasound. World Society for Stereotactic and Functional Neurosurgery , Toronto 2009-03-23 - 2009-03-27
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Academic lectureUnsgård, Geirmund. (2009) Intraoperative ultrasound in neurosurgery. Current applications and future concepts. Moscow Intranational Neurosurgical Forum , Moskva 2009-06-03 - 2009-06-06
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Academic lectureUnsgård, Geirmund. (2009) Ultrasound navigated surgery of brain tumours. 11th Congress of the Baltic Neurosurgical Association , Tartu 2009-03-29 -
-
Academic lectureUnsgård, Geirmund. (2009) New technologies in Glioma surgery. Neuronavigation - Sono Wand. 11th Congress of the Baltic Neurosurgical Association , Estonia 2009-03-28 -
-
Academic lectureUnsgård, Geirmund. (2009) Inoperative imaging in neurosurgery with 3D Ultrasound. European Association of Neurosurgical Societie , Marseille 2009-03-27 - 2009-03-31
2008
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Academic lectureGulati, Sasha; Berntsen, Erik Magnus; Solheim, Ole; Unsgård, Geirmund. (2008) Reseksjon av høygradige gliomer i elokvente områder veiledet av BOLD fMRI, DTI og operativ 3D ultralyd. Kirurgisk høstmøte 2008-10-20 - 2008-10-24
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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 lectureSolheim, Ole; Selbekk, Tormod; Tangen, Geir Arne; Solberg, Ole Vegard; Kolstad, Frode; Unsgård, Geirmund. (2008) Ultralyd ved spinalkirurgi - teknologiutvikling. Norsk Kirurgisk Forening Kirurgisk Høstmøte 2008 , Holmenkollen Park Hotell, Oslo 2008-11-21 - 2008-11-22
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Academic lectureGulati, Sasha; Berntsen, Erik Magnus; Solheim, Ole; Håberg, Asta; Unsgård, Geirmund. (2008) Reseksjon av høygradige giliomer i elokvente områder veiledet av BOLD fMRI, DTI og intraoperativ 3D ultralyd. Norsk Kirurgisk Forening Kirurgisk Høstmøte 2008 , Oslo 2008-11-21 - 2008-11-22
2007
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Academic lectureBerntsen, Erik Magnus; Gulati, Sasha; Rydland, Jana; Kvistad, Kjell Arne; Lindseth, Frank; Unsgård, Geirmund. (2007) Funksjonell MR i prekirurgisk planlegging av pasienter med hjernsvulster. Norsk Kirurgisk Forening Nevrokirurgisk Høstmøte , Oslo 2007-10-24 - 2007-10-26
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Academic lectureBerntsen, Erik Magnus; Gulati, Sasha; Solheim, Ole; Kvistad, Kjell Arne; Lindseth, Frank; Unsgård, Geirmund. (2007) Kombinert pre- og intraoperativ bildediagnostikk av en cerebral arteriovenøs malformasjon lokalisert i primær motorisk cortex. Norsk Kirurgisk Forening Nevrokirurgisk høstmøte , Oslo 2007-10-24 - 2007-10-26
2006
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Academic lectureUnsgård, Geirmund. (2006) Clinical Application of Ultrasound and Navigation in Neurosurgery. The 10th Congress of the Baltic Neurosurgical Association , Lithuania 2006-09-14 - 2006-09-16
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Academic lectureHernes, Toril A. Nagelhus; Kaspersen, John Harald; Langø, Thomas; Lindseth, Frank; Selbekk, Tormod; Wollf, Arild. (2006) Multiradiological 2D and 3D interfaces for Interactive diagnostics, treatment guidance and follow up of patients. EuroPacs Conference , Trondheim 2006-06-15 -
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Academic lectureHernes, Toril A. Nagelhus; Lindseth, Frank; Selbekk, Tormod; Tangen, Geir Arne; Harg, Erik; Rygh, Ola. (2006) Navigated neurosurgery based on multimodal 3D display of intraoperative 3D ultrasound and brain shift corrected preoperative MRI. 18th annual SMIT (Society of Medical Innovation and Technology) , Pacific Grove Monterey 2006-05-11 - 2006-05-14
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Academic lectureUnsgård, Geirmund. (2006) Modern Department of Neurosurgery. The 10th Congress of the Baltic Neurosurgical Association 2006-09-14 - 2006-09-16
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PosterHarg, Erik; Lindseth, Frank; Hernes, Toril A. Nagelhus; Selbekk, Tormod; Tangen, Geir Arne; Rygh, Ola. (2006) Brain Shift Correction Using Volumetric Registration in Navigated Neurosurgery. 18th annual SMIT (Society of Medical Innovation and Technology) , Pacific Grove, Monterey 2006-05-11 - 2006-05-14
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PosterHernes, Toril A. Nagelhus; Myhre, Hans Olav; Mårvik, Ronald; Unsgård, Geirmund; Langø, Thomas; Kaspersen, John Harald. (2006) Ultrasound and MR for improved diagnostics therapy, monitoring, activation and guidance. EU konferanse , Barcelona 2006-09-15 - 2006-09-20
2005
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Academic lectureRygh, Ola; Cappelen, Johan; Selbekk, Tormod; Lindseth, Frank; Hernes, Toril; Unsgård, Geirmund. (2005) Endoskopi med 3D Ultralyd og Nevronavigasjon. Norsk Kirurgisk Forening Årsmøte for Norsk Kirurgisk Forening , Oslo 2005-10-24 - 2005-10-28
2004
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PosterRygh, Ola; Unsgård, Geirmund; Selbekk, Tormod; Lindseth, Frank; Muller, Tomm; Hernes, Toril. (2004) Navigated 3D ultrasound Angiography in Tumor Surgery. Congress of Neurological Surgeons CNS Annual Meeting , San Fransisco, CA 2004-10-16 - 2004-10-21
2001
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PosterHaraldseth, Olav; Torheim, Geir; Bidar, Abdelwahad; Jones, Richard A.; Lindset, Frank; Myhr, Gunnar. (2001) Functional MRI used for presurgiacal mapping of eloquent brain of brain tumor patients and combined with minimal invasive brain surgery. International Society for Magnetic Resonance in Medicine 9th Scientific Meeting 2001 , Glasgow, UK 2001-04-27 -
1999
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PosterQu, Hong; Færø, Erik; Jørgensen, Pål; Dale, Ola; Gisvold, Sven Erik; Unsgård, Geirmund. (1999) Glutamate transport and metabolism in cultured astrocytes and neurons in the presence of thiopental; studied by 13C MR spectroscopy. 30th American Society of Neurochemistry meeting , New Orleans, Louisiana, USA
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PosterQu, Hong; Qu, Hong; Færø, Erik; Jørgensen, Paal; Dale, Ola; Unsgård, Geirmund. (1999) Glutamate transport and metabolism in cultured astrocytes and neurons in the presence of thiopental; studied by %1%3C MR spectroscopy. 30th ASN meeting , New Orleans, La.
1998
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Academic lectureVik, Anne; Hulleberg, Gunn; Zwart, John-Anker; Nygaard, Øystein P; Unsgård, Geirmund. (1998) 8 års oppfølging etter lumbale prolapsoperasjoner. Reoperasjonsfrekvens og resultat hos reopererte pasienter. Nevrokirurgisk Høstmøte 22.10.98 , Oslo
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Academic lectureQu, Hong; Håberg, Asta Kristine; Sæter, Oddbjørn; Haraldseth, Olav; Unsgård, Geirmund; Sonnewald, Ursula. (1998) Pyruvate recycling. European Society of Neurochemistry , St. Petersburg, Russia
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Academic lectureSonnewald, Ursula; Håberg, Asta Kristine; Qu, Hong; Sæter, Oddbjørn; Haraldseth, Olav; Unsgård, Geirmund. (1998) Stroke, the metabolic approach. European Society of Neurochemistry (ESN) , St. Petersberg, Russia
1997
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Popular scientific lectureAasly, Jan; Silfvenius, H.; Aas, T.; Sonnewald, Ursula; Unsgård, Geirmund; White, Linda. (1997) Proton NMR spectroscopy of temporal lobe biopsies from patients with intractable epilepsy. 22nd International Epilepsy Congress , Dublin
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Academic lectureSonnewald, Ursula; Håberg, Asta Kristine; Qu, Hong; Haraldseth, Olav; Müller, Tom B.; Unsgård, Geirmund. (1997) Neuronal/glial metabolism after middle cerebral artery occlusion in rats studied by 13C MRS. International Society of Neurochemistry , Boston, USA