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List of works by Geirmund Unsgård

(13)C MR spectroscopy study of lactate as substrate for rat brain

scientific article published in September 2000

13C NMR spectroscopy study of cortical nerve cell cultures exposed to hypoxia

scientific article

31 phosphorous nuclear magnetic resonance spectroscopy of rat brain with temporary global cerebral ischemia--methodology

scientific article published on January 1990

3D ultrasound-guided resection of low-grade gliomas: principles and clinical examples

scientific article published on 01 December 2019

A new acoustic coupling fluid with ability to reduce ultrasound imaging artefacts in brain tumour surgery-a phase I study

scientific article published on 18 May 2019

A new system for 3D ultrasound-guided placement of cerebral ventricle catheters

scientific article published on 02 June 2011

ACTH and TSH producing ectopic suprasellar pituitary adenoma of the hypothalamic region: case report

scientific article

Animal study assessing safety of an acoustic coupling fluid that holds the potential to avoid surgically induced artifacts in 3D ultrasound guided operations

scientific article

Aspects of neuroblastoma

scientific article published on September 30, 1981

Atrial natriuretic peptide-LI following subarachnoid haemorrhage in man

scientific article published on 01 January 1990

Automatic Intraoperative Correction of Brain Shift for Accurate Neuronavigation

scientific article published on 11 September 2018

Automatic intraoperative estimation of blood flow direction during neurosurgical interventions

scientific article published on 13 March 2018

Brain metastases in adults

scientific article

Cerebrospinal fluid lactate and glutamine are reduced in multiple sclerosis

scientific article published on 01 January 1997

Changes of glial-neuronal interaction and metabolism after a subconvulsive dose of pentylenetetrazole

scientific article published in October 2004

Characterization of the microcirculation during ischemia and reperfusion in the penumbra of a rat model of temporary middle cerebral artery occlusion: a laser Doppler flowmetry study.

scientific article published on September 1994

Clinical experience with navigated 3D ultrasound angiography (power Doppler) in microsurgical treatment of brain arteriovenous malformations

scientific article published on 19 March 2016

Combined perfusion and diffusion-weighted magnetic resonance imaging in a rat model of reversible middle cerebral artery occlusion

scientific article published in March 1995

Comparison of MR perfusion imaging and microsphere measurements of regional cerebral blood flow in a rat model of middle cerebral artery occlusion

scientific article published in January 1996

Comparison of a strategy favoring early surgical resection vs a strategy favoring watchful waiting in low-grade gliomas

scientific article

Comparison of contrast in brightness mode and strain ultrasonography of glial brain tumours

scientific article

CustusX: an open-source research platform for image-guided therapy

scientific article

Decreased glutamate metabolism in cultured astrocytes in the presence of thiopental

scientific article published in September 1999

Did survival improve after the implementation of intraoperative neuronavigation and 3D ultrasound in glioblastoma surgery? A retrospective analysis of 192 primary operations

scientific article published on 30 March 2012

Differences in neurotransmitter synthesis and intermediary metabolism between glutamatergic and GABAergic neurons during 4 hours of middle cerebral artery occlusion in the rat: the role of astrocytes in neuronal survival

scientific article published in December 2001

Diffuse low-grade gliomas

scientific article published on 23 August 2013

Direct demonstration by [13C]NMR spectroscopy that glutamine from astrocytes is a precursor for GABA synthesis in neurons

scientific article published in January 1993

Effects of aspartame on 45Ca influx and LDH leakage from nerve cells in culture.

scientific article published in January 1995

Effects of pentylenetetrazole and glutamate on metabolism of [U-(13)C]glucose in cultured cerebellar granule neurons

scientific article published in February 2002

Effects of thiopental on transport and metabolism of glutamate in cultured cerebellar granule neurons

scientific article published in August 2000

First direct demonstration of preferential release of citrate from astrocytes using [13C]NMR spectroscopy of cultured neurons and astrocytes

scientific article published on 01 July 1991

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

scientific article published in August 2010

Glutamate decreases pyruvate carboxylase activity and spares glucose as energy substrate in cultured cerebellar astrocytes

scientific article published in December 2001

Higher levels of antibodies against the psoriasis-associated antigen pso p27 in cerebrospinal fluid from patients with low back pain and sciatica

scientific article published on 01 February 1999

Hyperglycemia in global cerebral ischemia and reperfusion: a 31-phosphorous NMR spectroscopy study in rats

scientific article published on January 1, 1992

In vitro and ex vivo 13C-NMR spectroscopy studies of pyruvate recycling in brain

scientific article published in January 1998

In vivo effects of adenosine A1 receptor agonist and antagonist on neuronal and astrocytic intermediary metabolism studied with ex vivo 13C NMR spectroscopy

scientific article published in January 2000

In vivo injection of [1-13C]glucose and [1,2-13C]acetate combined with ex vivo 13C nuclear magnetic resonance spectroscopy: a novel approach to the study of middle cerebral artery occlusion in the rat.

scientific article published in November 1998

Initial experience with stereoscopic visualization of three-dimensional ultrasound data in surgery

scientific article

Intra-operative Imaging with 3D Ultrasound in Neurosurgery

scientific article published on 01 January 2011

Intra-operative correction of brain-shift

scientific article

Intracranial tumors in adults

scientific article

Intracranial tumors in children

scientific article

Intraoperative 3D ultrasound-guided resection of diffuse low-grade gliomas: radiological and clinical results

scientific article published on 01 February 2019

Intrasellar Ultrasound in Transsphenoidal Surgery

scientific article published on 01 January 2010

Lactate formation from [U-13C]aspartate in cultured astrocytes: compartmentation of pyruvate metabolism

scientific article published on 01 November 1997

Low grade gliomas in eloquent locations - implications for surgical strategy, survival and long term quality of life

scientific article

MRS study of glutamate metabolism in cultured neurons/glia

scientific article published in September 1996

Metabolism of [U-13C]glutamate in astrocytes studied by 13C NMR spectroscopy: incorporation of more label into lactate than into glutamine demonstrates the importance of the tricarboxylic acid cycle

scientific article published on 01 September 1993

Microsurgery in lumbar nucleus prolapse

scientific article published in June 1990

Mrs evaluation of brain-metabolites in extracts from cell-cultures, human tumors and normal tissue from brain - cholesteryl ester, choline containing compounds and creatine as markers for development, differentiation and pathology.

scientific article

NBQX (2,3-dihydroxy-6-nitro-7-sulfamoyl-benzo(F)quinoxaline) did not affect recovery of high energy phosphates and pH in early reperfusion in a rat model of transient forebrain ischemia. Or: an in vivo 31P NMR spectroscopy study

scientific article

NMR spectroscopic studies of 13C acetate and 13C glucose metabolism in neocortical astrocytes: evidence for mitochondrial heterogeneity

scientific article published in January 1993

NMR spectroscopic study of cell cultures of astrocytes and neurons exposed to hypoxia: Compartmentation of astrocyte metabolism ⬇️

scientific article published on May 1, 1994

NMR spectroscopy of cultured astrocytes: effects of glutamine and the gliotoxin fluorocitrate.

scientific article

NMR spectroscopy study of the effect of 3-nitropropionic acid on glutamate metabolism in cultured astrocytes

scientific article

Navigated resection of giant intracranial meningiomas based on intraoperative 3D ultrasound

scientific article published on 14 May 2009

Neurophysiological monitoring during surgery

scientific article

Nuclear Magnetic Resonance Spectroscopy of Cerebrospinal Fluid From Patients With Low Back Pain and Sciatica ⬇️

scientific article published on September 15, 1997

Nuclear magnetic resonance spectroscopy: biochemical evaluation of brain function in vivo and in vitro.

scientific article published on January 1994

Pentylenetetrazole decreases metabolic glutamate turnover in rat brain

scientific article published in June 2003

Perfusion and Diffusion-Weighted MR Imaging for In Vivo Evaluation of Treatment With U74389G in a Rat Stroke Model ⬇️

scientific article published on August 1, 1995

Postoperative deterioration in health related quality of life as predictor for survival in patients with glioblastoma: a prospective study

scientific article (publication date: 2011)

Preoperative blood oxygen level-dependent functional magnetic resonance imaging in patients with primary brain tumors: clinical application and outcome

scientific article published in April 2004

Quality of life in patients with intracranial gliomas: the impact of modern image-guided surgery

scientific article

Quicker metabolic recovery after forebrain ischemia in rats treated with the antioxidant U74006F.

scientific article published in September 1991

REtroSpective Evaluation of Cerebral Tumors (RESECT): A clinical database of pre-operative MRI and intra-operative ultrasound in low-grade glioma surgeries

scientific article

Scientific alchemy and proposed gold standards of care

scientific article published on 24 May 2014

SonoWand, an ultrasound-based neuronavigation system

scientific article published on December 2000

Standardized reporting of adverse events after microvascular decompression of cranial nerves; a population-based single-institution consecutive series

scientific article published on 4 June 2016

Surgical resection versus watchful waiting in low-grade gliomas

scientific article published on 5 May 2017

Surgical strategies in low-grade gliomas and implications for long-term quality of life

scientific article published on 3 May 2014

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

scientific article

Surgically acquired deficits and diffusion weighted MRI changes after glioma resection--a matched case-control study with blinded neuroradiological assessment

scientific article

The Diagnostic Properties of Intraoperative Ultrasound in Glioma Surgery and Factors Associated with Gross Total Tumor Resection.

scientific article

The NMDA antagonist MK-801 improved metabolic recovery after 10 minutes global cerebral ischaemia in rats measured with 31 phosphorous magnetic resonance spectroscopy

scientific article published in January 1990

The effects of brain temperature on temporary global ischaemia in rat brain. A 31-phosphorous NMR spectroscopy study ⬇️

scientific article published on July 1, 1992

Three-dimensional ultrasound-guided placement of ventricular catheters

scientific article published on 23 August 2013

Transsellar Ultrasound in Pituitary Surgery With a Designated Probe: Early Experiences

scientific article published on 01 June 2016

Tumor Volume Assessment in Low-Grade Gliomas: A Comparison of Preoperative Magnetic Resonance Imaging to Coregistered Intraoperative 3-Dimensional Ultrasound Recordings

scientific article published on 10 August 2017

UDP-N-acetylhexosamines and hypotaurine in human glioblastoma, normal brain tissue and cell cultures: 1H/NMR spectroscopy study

scientific article published on May 1994

Ultrasound imaging in neurosurgery: approaches to minimize surgically induced image artefacts for improved resection control

scientific article

Ultrasound-guided neurosurgery: a feasibility study in the 3-30 MHz frequency range

scientific article published in April 1996

Ultrasound-guided neurosurgery: experiences from 20 years of cross-disciplinary research in Trondheim, Norway

scientific article published in March 2016

Ultrasound-guided operations in unselected high-grade gliomas--overall results, impact of image quality and patient selection

scientific article

Uptake, release, and metabolism of citrate in neurons and astrocytes in primary cultures.

scientific article published in May 1994

[A 54-year-old man with a large subcutaneous skull erosion and focal epileptic seizures].

scientific article published in September 2006

[Elevated intracranial pressure following brain infarction--therapeutical possibilities]

scientific article published on 01 January 1995

[Familial pheochromocytoma associated with non Hippel-Lindau disease. A family study]

scientific article published on 01 April 1984

[Intracranial tumors in adults (over 15 years)]

scientific article published on 01 April 1993

[Intracranial tumors in children (under 15 years)]

scientific article published on 01 April 1993

[Organization of hospitals in clinical centers]

scientific article published on 01 August 1996

[U-13C] aspartate metabolism in cultured cortical astrocytes and cerebellar granule neurons studied by NMR spectroscopy

scientific article published in July 1998

[U-13C]glutamate metabolism in astrocytes during hypoglycemia and hypoxia

scientific article published in March 1998

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