2025

• Mazurek, Mercy H.; Bassa, Mohamed J.; Padayachy, Llewellyn; Wetzel, Ethan A.; Moiyadi, Aliasgar; Perin, Alessandro; Quintana, Cristian de; Prada, Francesco; Nahed, Brian V.; DiMeco, Francesco. (2025) An International Course on Intraoperative Ultrasound in Neurosurgery: Evaluation of a Multicenter, Hands-On Course in Promoting Familiarity and Use of Intraoperative Ultrasound in Neurosurgery. World Neurosurgery
  Academic article

2024

• Cavallo, S.M.; Pellencin, E.; Carone, G.; Castelli, N.; Ayadi, R.; Olldashi, F.; Anazi, Anazi Al; Kanaan, I.; Colmena, Colmena Garcia; Ajler, P.. (2024) Non-technical skills for neurosurgeons: An international survey. Brain and Spine
  Academic article

2021

• Bene, Massimiliano Del; DiMeco, Francesco; Unsgård, Geirmund. (2021) Editorial: Intraoperative Ultrasound in Brain Tumor Surgery: State-Of-The-Art and Future Perspectives. Frontiers in Oncology
  Editorial

2019

• 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
• Unsgård, Geirmund; Lindseth, Frank. (2019) 3D ultrasound-guided resection of low-grade gliomas: principles and clinical examples. Neurosurgical Focus
  Academic article
• Bø, Hans Kristian; Solheim, Ole; Kvistad, Kjell Arne; Berntsen, Erik Magnus; Torp, Sverre Helge; Skjulsvik, Anne Jarstein; Reinertsen, Ingerid; Iversen, Daniel Høyer; Unsgård, Geirmund; Jakola, Asgeir S. (2019) Intraoperative 3D ultrasound-guided resection of diffuse low-grade gliomas: radiological and clinical results. Journal of Neurosurgery
  Academic article

2018

• 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
• 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
• 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

2017

• Munkvold, Bodil Karoline Ravn; Bø, Hans Kristian; Jakola, Asgeir Store; Reinertsen, Ingerid; Berntsen, Erik Magnus; Unsgård, Geirmund; Torp, Sverre Helge; Solheim, Ole. (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; Åberg, Kristin; Berg, Thomas; Hong, Yan Dai; Johnsen, Knut. (2017) Surgical resection versus watchful waiting in low-grade gliomas. Annals of Oncology
  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
  Academic article

2016

• 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
• Bartek, Jiri; Gulati, Sasha; Unsgård, Geirmund; Weber, Clemens; Förander, Petter; Solheim, Ole; Jakola, Asgeir Store. (2016) Standardized reporting of adverse events after microvascular decompression of cranial nerves; a population-based single-institution consecutive series. Acta Neurochirurgica
  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

• 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
• Askeland, Christian; Solberg, Ole Vegard; Bakeng, Janne Beate Lervik; Reinertsen, Ingerid; Tangen, Geir Arne; Hofstad, Erlend Fagertun; Iversen, Daniel Høyer; Våpenstad, Cecilie; Selbekk, Tormod; Langø, Thomas. (2015) CustusX: an open-source research platform for image-guided therapy. International Journal of Computer Assisted Radiology and Surgery
  Academic article
• Iversen, Daniel Høyer; Lindseth, Frank; Unsgård, Geirmund; Torp, Hans; Løvstakken, Lasse. (2015) Improved quality of freehand 3-D ultrasound color flow imaging by multi-angle compounding. Proceedings - IEEE Ultrasonics Symposium
  Academic article

2014

• Jakola, Asgeir S; Jørgensen, Arve; Selbekk, Tormod; Michler, Ralf-Peter; Solheim, Ole; Torp, Sverre Helge; Sagberg, Lisa Millgård; Aadahl, Petter; Unsgård, Geirmund. (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
• 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
• Reinertsen, Ingerid; Lindseth, Frank; Askeland, Christian; Iversen, Daniel Høyer; Unsgård, Geirmund. (2014) Intra-operative correction of brain-shift. Acta Neurochirurgica
  Academic article
• Solheim, Ole; Jakola, Asgeir Store; Unsgård, Geirmund. (2014) Scientific alchemy and proposed gold standards of care. World Neurosurgery
  Commentary
• Jakola, Asgeir S; Unsgård, Geirmund; Myrmel, Kristin Smistad; Kloster, Roar; Torp, Sverre Helge; Sagberg, Lisa Millgård; Lindal, Sigurd; Solheim, Ole. (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; Solheim, Ole. (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

2013

• 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
• Selbekk, Tormod; Jakola, Asgeir S; Solheim, Ole; Johansen, Tonni Franke; Lindseth, Frank; Reinertsen, Ingerid; Unsgård, Geirmund. (2013) Ultrasound imaging in neurosurgery: approaches to minimize surgically induced image artefacts for improved resection control. Acta Neurochirurgica
  Academic literature review
• Jakola, Asgeir; Solheim, Ole; Unsgård, Geirmund. (2013) Risks and benefits of brain tumor surgery: A balancing act. Norges teknisk-naturvitenskapelige universitet
  Doctoral thesis
• Solheim, Ole; Jakola, Asgeir S; Lindseth, Frank; Unsgård, Geirmund. (2013) Lavgradige gliom – en hjernekirurgisk balansekunst. Kirurgen
  Professional 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
• Jakola, Asgeir; Unsgård, Geirmund; Kloster, Roar; Solheim, Ole. (2013) Diffuse low-grade gliomas. Journal of Neurosurgery
  Commentary
• Jakola, Asgeir; Reinertsen, Ingerid; Selbekk, Tormod; Solheim, Ole; Lindseth, Frank; Gulati, Sasha; Unsgård, Geirmund. (2013) Three dimensional ultrasound guided placement of ventricular catheters. World Neurosurgery
  Academic article
• Jakola, Asgeir; Unsgård, Geirmund; Myrmel, Kristin Smistad; Kloster, Roar; Torp, Sverre Helge; Losvik, Ole Kristian; Lindal, Sigurd; Solheim, Ole. (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

2012

• Jakola, Asgeir S; Myrmel, Kristin Smistad; Kloster, Roar; Torp, Sverre Helge; Lindal, Sigurd; Unsgård, Geirmund; Solheim, Ole. (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
• 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
• Jakola, Asgeir S; Unsgård, Geirmund; Myrmel, Kristin Smistad; Kloster, Roar; Torp, Sverre Helge; Lindal, Sigurd; Solheim, Ole. (2012) Low Grade Gliomas in Eloquent Locations – Implications for Surgical Strategy, Survival and Long Term Quality of Life. PLOS ONE
  Academic article
• Reinertsen, Ingerid; Jakola, Asgeir S; Friderichsen, Peter; Lindseth, Frank; Solheim, Ole; Selbekk, Tormod; Unsgård, Geirmund. (2012) A new system for 3D ultrasound-guided placement of cerebral ventricle catheters. International Journal of Computer Assisted Radiology and Surgery
  Academic article
• Lindseth, Frank; Langø, Thomas; Selbekk, Tormod; Tangen, Geir Arne; Hofstad, Erlend Fagertun; Unsgård, Geirmund; Manstad-Hulaas, Frode; Amundsen, Tore; Mårvik, Ronald; Hernes, Toril A. Nagelhus. (2012) Navigasjonsteknologi blir benyttet innenfor stadig flere kliniske områder. Kirurgen
  Professional article

2011

• Unsgård, Geirmund; Solheim, Ole; Lindseth, Frank; Selbekk, Tormod. (2011) Intra-operative imaging with 3D ultrasound in neurosurgery. Acta Neurochirurgica Supplementum
  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
• Mårvik, Ronald; Myhre, Hans Olav; Unsgård, Geirmund. (2011) Experimental Surgery in Trondheim.
  Academic chapter
• Solheim, Ole; Unsgård, Geirmund; Nygaard, Øystein Petter. (2011) Ultrasound guided surgery in patients with intracranial tumours. NTNU
  Doctoral thesis
• 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
• 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

2010

• Solheim, Ole; Selbekk, Tormod; Løvstakken, Lasse; Tangen, Geir Arne; Solberg, Ole Vegard; Johansen, Tonni Franke; Cappelen, Johan; Unsgård, Geirmund. (2010) Intrasellar ultrasound in transsphenoidal surgery: a novel technique. 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
  Commentary
• 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
• Berntsen, Erik Magnus; Gulati, Sasha; Solheim, Ole; Kvistad, Kjell Arne; Torp, Sverre Helge; Selbekk, Tormod; Unsgård, Geirmund; Håberg, Asta. (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; 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

2009

• Unsgård, Geirmund. (2009) Ultrasound-guided neurosurgery.
  Academic chapter
• 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; Nygård, Øystein. (2009) Navigational high-resolution 3D ultrasound in spine tumour surgery — technical assessment. International Journal of Computer Assisted Radiology and Surgery
  Conference abstract
• Sindou, Marc; Unsgård, Geirmund. (2009) Practical Handbook of Neurosurgery. Springer
  Anthology
• Gulati, Sasha; Berntsen, Erik Magnus; Solheim, Ole; Kvistad, Kjell Arne; Håberg, Asta; Selbekk, Tormod; Torp, Sverre Helge; Unsgård, Geirmund. (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

2008

• 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. Norges teknisk-naturvitenskapelige universitet
  Doctoral thesis
• 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
  Conference abstract

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
• 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
• jr., Inge-Andre Rasmussen; Lindseth, Frank; Rygh, Ola Morten; Berntsen, Erik Magnus; Selbekk, Tormod; Xu, Jian; Hernes, Toril A. Nagelhus; Harg, Erik; Håberg, Asta; Unsgård, Geirmund. (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

2006

• 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, Frank; Hernes, Toril A. Nagelhus. (2006) Intra-operative 3D ultrasound in neurosurgery. Acta Neurochirurgica
  Academic literature review
• Hernes, Toril A. Nagelhus; Lindseth, Frank; Selbekk, Tormod; Wollf, Arild; Solberg, Ole Vegard; Harg, Erik; Rygh, Ola; Tangen, Geir Arne; jr., Inge-Andre Rasmussen; Augdal, Sigmund. (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
• 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

2005

• Meling, Torstein Ragnar; Helseth, Eirik; Unsgård, Geirmund; Lote, Knut; Nakstad, Per Hjalmar; Wester, Knut. (2005) Brain metastases in adults. Tidsskrift for Den norske legeforening (Tidsskriftet)
  Academic article
• Unsgård, Geirmund; Selbekk, Tormod; Muller, Tomm; Ommedal, Steinar; Torp, Sverre Helge; Myhr, Gunnar; Bang, Jon; Hernes, Toril A. Nagelhus. (2005) Ability of Navigated 3D Ultrasound to Delineate Gliomas and Metastases - Comparison of Image Interpretations with Histopathology. Acta Neurochirurgica
  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
• Unsgård, Geirmund; Rygh, Ola; Selbekk, Tormod; Müller, T. B.; Kolstad, Frode; Lindseth, F; Hernes, Toril A. Nagelhus. (2005) Intra-operative 3D Ultrasound in Neurosurgery. Acta Neurochirurgica
  Academic literature review
• 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

2004

• 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; 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

2003

• Helseth, Eirik; Meling, Torstein Ragnar; Lundar, Tryggve; Scheie, David; Skullerud, Kari Petra; Unsgård, Geirmund; Kloster, Roar; Langmoen, Iver Arne; Wester, Knut. (2003) Intracranial tumors in adults. Tidsskrift for Den norske legeforening (Tidsskriftet)
  Academic article
• Helseth, Eirik; Meling, Torstein; Lundar, Trygve; Scheie, David; Skullerud, Kari; Lote, Knut; Unsgård, Geirmund; Kloster, Roar; Langmoen, Iver Arne; Wester, Knut. (2003) Intrakraniale svulster hos voksne. Tidsskrift for Den norske legeforening (Tidsskriftet)
  Academic article
• Helseth, Eirik; Due-Tønnessen, Bernt J; Lundar, Trygve; Scheie, David; Skullerud, Kari; Wesenberg, Finn; Lote, Knut; Cappelen, Johan; Unsgård, Geirmund; Stokland, Tore. (2003) Intracraniale svulster hos barn. Tidsskrift for Den norske legeforening (Tidsskriftet)
  Academic article
• 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
  Research 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; Lote, Knut; Cappelen, Johan; Unsgård, G; Stokland, Tore. (2003) Intrakraniale svulster hos barn. Tidsskrift for Den norske legeforening (Tidsskriftet)
  Academic article
• Helseth, Eirik; Meling, Torstein; Lundar, Tryggve; Scheie, David; Skullerud, Kari Petra; Lote, Knut; Unsgård, G; Kloster, R.; Langmoen, Ivar A.; Wester, K. (2003) Intrakraniale svulster hos voksne. Tidsskrift for Den norske legeforening (Tidsskriftet)
  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

• 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. Tapir trykkeri
  Academic monograph
• 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
• Qu, Hong; Waagepetersen, Helle S.; Hengel, Marike van; Wolt, Saskia; Dale, Ola; Unsgård, Geirmund; Sletvold, Olav; Schousboe, Arne; Sonnewald, Ursula. (2000) Effects of thiopental on transport and metabolism of glutamate in cultured cerebellar granule neurons. Neurochemistry International
  Academic article

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; Sonnewald, Ursula. (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; Unsgård, Geirmund; Aasly, Jan; Sonnewald, Ursula. (1998) In vitro and ex vivo %1%3C-NMR spectroscopy studies of pyruvate recycling in brain. Developmental Neuroscience
  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
• 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
• 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, 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

1997

• 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
• Zwart, John-Anker; Gårseth, Mari; Sonnewald, Ursula; Dale, Leif-Gunnar; White, Linda; Aasly, Jan; Unsgård, Geirmund. (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; 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

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; Unsgård, Geirmund; Schousboe, Arne. (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; Unsgård, Geirmund. (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; Hertz, Leif; Schousboe, Arne. (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; Gisvold, Sven Erik; Unsgård, Geirmund. (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