Publications 2024

Juvodden HT, Alnæs D, Agartz I, Andreassen OA, Server A, Thorsby PM, Westlye LT, Knudsen-Heier S (2024)
Cortical thickness and sub-cortical volumes in post-H1N1 narcolepsy type 1: A brain-wide MRI case-control study
Sleep Med, 116, 81-89
DOI 10.1016/j.sleep.2024.02.031, PubMed 38432031

Server A, Sánchez V, Schmucker E, Mesas Á, Medel J (2024)
Continuous PENG block in an oncologic patient with bilateral femoral avascular necrosis
Rev Esp Anestesiol Reanim (Engl Ed) (in press)
DOI 10.1016/j.redare.2024.02.020, PubMed 38423462

Publications 2023

Juvodden HT, Alnæs D, Lund MJ, Agartz I, Andreassen OA, Server A, Thorsby PM, Westlye LT, Knudsen Heier S (2023)
Larger hypothalamic volume in narcolepsy type 1
Sleep, 46 (11)
DOI 10.1093/sleep/zsad173, PubMed 37463428

Lloret I, Hompland I, Lobmaier IV, Sundseth J, Server A (2023)
Ewing sarcoma of the temporal bone with aneurysmal bone cyst-like changes: A rare case report with an unusual radiological presentation
Neuroradiol J, 19714009231212358 (in press)
DOI 10.1177/19714009231212358, PubMed 37923348

Mendoza Mireles EE, Skaga E, Server A, Leske H, Brandal P, Helseth E, Rønning PA, Vik-Mo EO (2023)
The benefit of complete resection of contrast enhancing tumor in glioblastoma patients: A population-based study
Neurooncol Pract, 10 (6), 555-564
DOI 10.1093/nop/npad037, PubMed 38026582

Misceo D, Lirussi L, Strømme P, Sumathipala D, Guerin A, Wolf NI, Server A, Stensland M, Dalhus B, Tolun A, Kroes HY, Nyman TA, Nilsen HL, Frengen E (2023)
A homozygous POLR1A variant causes leukodystrophy and affects protein homeostasis
Brain, 146 (8), 3513-3527
DOI 10.1093/brain/awad086, PubMed 36917474

Moltu SJ, Nordvik T, Rossholt ME, Wendel K, Chawla M, Server A, Gunnarsdottir G, Pripp AH, Domellöf M, Bratlie M, Aas M, Hüppi PS, Lapillonne A, Beyer MK, Stiris T, Maximov II, Geier O, Pfeiffer H (2023)
Arachidonic and docosahexaenoic acid supplementation and brain maturation in preterm infants; a double blind RCT
Clin Nutr, 43 (1), 176-186
DOI 10.1016/j.clnu.2023.11.037, PubMed 38061271

Nordvik T, Server A, Espeland CN, Schumacher EM, Larsson PG, Pripp AH, Stiris T (2023)
Combining MRI and Spectral EEG for Assessment of Neurocognitive Outcomes in Preterm Infants
Neonatology, 120 (4), 482-490
DOI 10.1159/000530648, PubMed 37290419

Server A, Sánchez V, Mesas Á, Medel J (2023)
Pulsed radiofrequency in a paediatric patient with disabling ACNES
Rev Esp Anestesiol Reanim (Engl Ed), 70 (7), 395-398
DOI 10.1016/j.redare.2022.10.008, PubMed 36940851

Publications 2022

Frič R, Sorteberg A, Wallace S, Alonso AS, Due-Tønnessen BJ, Wiedmann M (2022)
[Moyamoya disease in children]
Tidsskr Nor Laegeforen, 142 (13)
DOI 10.4045/tidsskr.21.0776, PubMed 36164799

Hellstrøm T, Andelic N, Holthe ØØ, Helseth E, Server A, Eiklid K, Sigurdardottir S (2022)
APOE-ε4 Is Associated With Reduced Verbal Memory Performance and Higher Emotional, Cognitive, and Everyday Executive Function Symptoms Two Months After Mild Traumatic Brain Injury
Front Neurol, 13, 735206
DOI 10.3389/fneur.2022.735206, PubMed 35250800

Publications 2020

Latysheva A, Geier OM, Hope TR, Brunetti M, Micci F, Vik-Mo EO, Emblem KE, Server A (2020)
Diagnostic utility of Restriction Spectrum Imaging in the characterization of the peritumoral brain zone in glioblastoma: Analysis of overall and progression-free survival
Eur J Radiol, 132, 109289
DOI 10.1016/j.ejrad.2020.109289, PubMed 33002815

Server Alonso A, Sakinis T, Pfeiffer HCV, Sandvig I, Barlinn J, Marthinsen PB (2020)
Understanding Pediatric Neuroimmune Disorder Conflicts: A Neuroradiologic Approach in the Molecular Era
Radiographics, 40 (5), 1395-1411
DOI 10.1148/rg.2020200032, PubMed 32735475

Sumathipala D, Strømme P, Gilissen C, Einarsen IH, Bjørndalen HJ, Server A, Corominas J, Hassel B, Fannemel M, Misceo D, Frengen E (2020)
Sudden death in epilepsy and ectopic neurohypophysis in Joubert syndrome 23 diagnosed using SNVs/indels and structural variants pipelines on WGS data: a case report
BMC Med Genet, 21 (1), 96
DOI 10.1186/s12881-020-01024-y, PubMed 32381069

Publications 2019

Holthe OO, Hellstrom T, Andelic N, Server A, Sigurdardottir S (2019)
Improvement and Prediction of Memory and Executive Functions in Patients Admitted to a Neurosurgery Service With Complicated and Uncomplicated Mild Traumatic Brain Injury
J Head Trauma Rehabil, 34 (5), E45-E56
DOI 10.1097/HTR.0000000000000463, PubMed 30829814

Latysheva A, Emblem KE, Brandal P, Vik-Mo EO, Pahnke J, Røysland K, Hald JK, Server A (2019)
Dynamic susceptibility contrast and diffusion MR imaging identify oligodendroglioma as defined by the 2016 WHO classification for brain tumors: histogram analysis approach
Neuroradiology, 61 (5), 545-555
DOI 10.1007/s00234-019-02173-5, PubMed 30712139

Storvestre GB, Valnes LM, Jensen A, Nerland S, Tesli N, Hymer KE, Rosaeg C, Server A, Ringen PA, Jacobsen M, Andreassen OA, Agartz I, Melle I, Haukvik UK (2019)
A preliminary study of cortical morphology in schizophrenia patients with a history of violence
Psychiatry Res Neuroimaging, 288, 29-36
DOI 10.1016/j.pscychresns.2019.04.013, PubMed 31071542

Publications 2018

Latysheva A, Emblem KE, Server A, Brandal P, Meling TR, Pahnke J, Hald JK (2018)
Survival Associations Using Perfusion and Diffusion Magnetic Resonance Imaging in Patients With Histologic and Genetic Defined Diffuse Glioma World Health Organization Grades II and III
J Comput Assist Tomogr, 42 (5), 807-815
DOI 10.1097/RCT.0000000000000742, PubMed 29901512

Mughal AA, Zhang L, Fayzullin A, Server A, Li Y, Wu Y, Glass R, Meling T, Langmoen IA, Leergaard TB, Vik-Mo EO (2018)
Patterns of Invasive Growth in Malignant Gliomas-The Hippocampus Emerges as an Invasion-Spared Brain Region
Neoplasia, 20 (7), 643-656
DOI 10.1016/j.neo.2018.04.001, PubMed 29793116

Skogen K, Schulz A, Helseth E, Ganeshan B, Dormagen JB, Server A (2018)
Texture analysis on diffusion tensor imaging: discriminating glioblastoma from single brain metastasis
Acta Radiol, 60 (3), 356-366
DOI 10.1177/0284185118780889, PubMed 29860889

Publications 2017

Hellstrøm T, Westlye LT, Sigurdardottir S, Brunborg C, Soberg HL, Holthe Ø, Server A, Lund MJ, Andreassen OA, Andelic N (2017)
Longitudinal changes in brain morphology from 4 weeks to 12 months after mild traumatic brain injury: Associations with cognitive functions and clinical variables
Brain Inj, 31 (5), 674-685
DOI 10.1080/02699052.2017.1283537, PubMed 28414250

Server A, Bargalló N, Fløisand Y, Sponheim J, Graus F, Hald JK (2017)
Imaging spectrum of central nervous system complications of hematopoietic stem cell and solid organ transplantation
Neuroradiology, 59 (2), 105-126
DOI 10.1007/s00234-017-1804-4, PubMed 28255902

Skranes JH, Løhaugen G, Schumacher EM, Osredkar D, Server A, Cowan FM, Stiris T, Fugelseth D, Thoresen M (2017)
Amplitude-Integrated Electroencephalography Improves the Identification of Infants with Encephalopathy for Therapeutic Hypothermia and Predicts Neurodevelopmental Outcomes at 2 Years of Age
J Pediatr, 187, 34-42
DOI 10.1016/j.jpeds.2017.04.041, PubMed 28549636

Publications 2016

Hellstrøm T, Westlye LT, Server A, Løvstad M, Brunborg C, Lund MJ, Nordhøy W, Andreassen OA, Andelic N (2016)
Volumetric and morphometric MRI findings in patients with mild traumatic brain injury
Brain Inj, 30 (13-14), 1683-1691
DOI 10.1080/02699052.2016.1199905, PubMed 27996331

Skogen K, Schulz A, Dormagen JB, Ganeshan B, Helseth E, Server A (2016)
Diagnostic performance of texture analysis on MRI in grading cerebral gliomas
Eur J Radiol, 85 (4), 824-9
DOI 10.1016/j.ejrad.2016.01.013, PubMed 26971430

Publications 2015

Bolstad I, Andreassen OA, Groote I, Server A, Sjaastad I, Kapur S, Jensen J (2015)
Effects of haloperidol and aripiprazole on the human mesolimbic motivational system: A pharmacological fMRI study
Eur Neuropsychopharmacol, 25 (12), 2252-61
DOI 10.1016/j.euroneuro.2015.09.016, PubMed 26476705

Bolstad I, Andreassen OA, Groote IR, Haatveit B, Server A, Jensen J (2015)
No difference in frontal cortical activity during an executive functioning task after acute doses of aripiprazole and haloperidol
Front Hum Neurosci, 9, 296
DOI 10.3389/fnhum.2015.00296, PubMed 26074803

Reckless GE, Andreassen OA, Server A, Østefjells T, Jensen J (2015)
Negative symptoms in schizophrenia are associated with aberrant striato-cortical connectivity in a rewarded perceptual decision-making task
Neuroimage Clin, 8, 290-7
DOI 10.1016/j.nicl.2015.04.025, PubMed 26106553

Skranes JH, Cowan FM, Stiris T, Fugelseth D, Thoresen M, Server A (2015)
Brain imaging in cooled encephalopathic neonates does not differ between four and 11 days after birth
Acta Paediatr, 104 (8), 752-8
DOI 10.1111/apa.13016, PubMed 25824694

Publications 2014

Brandt CL, Eichele T, Melle I, Sundet K, Server A, Agartz I, Hugdahl K, Jensen J, Andreassen OA (2014)
Working memory networks and activation patterns in schizophrenia and bipolar disorder: comparison with healthy controls
Br J Psychiatry, 204, 290-8
DOI 10.1192/bjp.bp.113.129254, PubMed 24434074

Odland A, Server A, Saxhaug C, Breivik B, Groote R, Vardal J, Larsson C, Bjørnerud A (2014)
Volumetric glioma quantification: comparison of manual and semi-automatic tumor segmentation for the quantification of tumor growth
Acta Radiol, 56 (11), 1396-403
DOI 10.1177/0284185114554822, PubMed 25338837

Ousdal OT, Andreassen OA, Server A, Jensen J (2014)
Increased amygdala and visual cortex activity and functional connectivity towards stimulus novelty is associated with state anxiety
PLoS One, 9 (4), e96146
DOI 10.1371/journal.pone.0096146, PubMed 24755617

Ousdal OT, Specht K, Server A, Andreassen OA, Dolan RJ, Jensen J (2014)
The human amygdala encodes value and space during decision making
Neuroimage, 101, 712-9
DOI 10.1016/j.neuroimage.2014.07.055, PubMed 25094017

Reckless GE, Ousdal OT, Server A, Walter H, Andreassen OA, Jensen J (2014)
The left inferior frontal gyrus is involved in adjusting response bias during a perceptual decision-making task
Brain Behav, 4 (3), 398-407
DOI 10.1002/brb3.223, PubMed 24944869

Server A, Graff BA, Josefsen R, Orheim TE, Schellhorn T, Nordhøy W, Nakstad PH (2014)
Analysis of diffusion tensor imaging metrics for gliomas grading at 3 T
Eur J Radiol, 83 (3), e156-65
DOI 10.1016/j.ejrad.2013.12.023, PubMed 24457139

Publications 2013

Bolstad I, Andreassen OA, Reckless GE, Sigvartsen NP, Server A, Jensen J (2013)
Aversive event anticipation affects connectivity between the ventral striatum and the orbitofrontal cortex in an fMRI avoidance task
PLoS One, 8 (6), e68494
DOI 10.1371/journal.pone.0068494, PubMed 23826392

Thoresen C, Endestad T, Sigvartsen NP, Server A, Bolstad I, Johansson M, Andreassen OA, Jensen J (2013)
Frontotemporal hypoactivity during a reality monitoring paradigm is associated with delusions in patients with schizophrenia spectrum disorders
Cogn Neuropsychiatry, 19 (2), 97-115
DOI 10.1080/13546805.2013.776495, PubMed 23756081

Welander-Vatn A, Jensen J, Otnaess MK, Agartz I, Server A, Melle I, Andreassen OA (2013)
The neural correlates of cognitive control in bipolar I disorder: an fMRI study of medial frontal cortex activation during a Go/No-go task
Neurosci Lett, 549, 51-6
DOI 10.1016/j.neulet.2013.06.010, PubMed 23778236

Publications 2012

Brown AA, Jensen J, Nikolova YS, Djurovic S, Agartz I, Server A, Ferrell RE, Manuck SB, Mattingsdal M, Melle I, Hariri AR, Frigessi A, Andreassen OA (2012)
Genetic variants affecting the neural processing of human facial expressions: evidence using a genome-wide functional imaging approach
Transl Psychiatry, 2 (7), e143
DOI 10.1038/tp.2012.67, PubMed 22828495

Mattingsdal M, Brown AA, Djurovic S, Sønderby IE, Server A, Melle I, Agartz I, Hovig E, Jensen J, Andreassen OA (2012)
Pathway analysis of genetic markers associated with a functional MRI faces paradigm implicates polymorphisms in calcium responsive pathways
Neuroimage, 70, 143-9
DOI 10.1016/j.neuroimage.2012.12.035, PubMed 23274185

Ousdal OT, Reckless GE, Server A, Andreassen OA, Jensen J (2012)
Effect of relevance on amygdala activation and association with the ventral striatum
Neuroimage, 62 (1), 95-101
DOI 10.1016/j.neuroimage.2012.04.035, PubMed 22546319

Rimol LM, Nesvåg R, Hagler DJ, Bergmann O, Fennema-Notestine C, Hartberg CB, Haukvik UK, Lange E, Pung CJ, Server A, Melle I, Andreassen OA, Agartz I, Dale AM (2012)
Cortical volume, surface area, and thickness in schizophrenia and bipolar disorder
Biol Psychiatry, 71 (6), 552-60
DOI 10.1016/j.biopsych.2011.11.026, PubMed 22281121

Thoresen C, Jensen J, Sigvartsen NP, Bolstad I, Server A, Nakstad PH, Andreassen OA, Endestad T (2012)
Arousal Modulates Activity in the Medial Temporal Lobe during a Short-Term Relational Memory Task
Front Hum Neurosci, 5, 177
DOI 10.3389/fnhum.2011.00177, PubMed 22291626

Publications 2010

Dullerud R, Gjertsen O, Server A (2010)
Magnetic resonance imaging of ligaments and membranes in the craniocervical junction in whiplash-associated injury and in healthy control subjects
Acta Radiol, 51 (2), 207-12
DOI 10.3109/02841850903321617, PubMed 19912072

Server A (2010)
Response to a letter by Paul E. Sijens
Acta Radiol, 51 (3), 329-33
DOI 10.3109/02841851003617180, PubMed 20201638

Server A, Graff BA, Orheim TE, Schellhorn T, Josefsen R, Gadmar ØB, Nakstad PH (2010)
Measurements of diagnostic examination performance and correlation analysis using microvascular leakage, cerebral blood volume, and blood flow derived from 3T dynamic susceptibility-weighted contrast-enhanced perfusion MR imaging in glial tumor grading
Neuroradiology, 53 (6), 435-47
DOI 10.1007/s00234-010-0770-x, PubMed 20857284

Server A, Josefsen R, Kulle B, Maehlen J, Schellhorn T, Gadmar Ø, Kumar T, Haakonsen M, Langberg CW, Nakstad PH (2010)
Proton magnetic resonance spectroscopy in the distinction of high-grade cerebral gliomas from single metastatic brain tumors
Acta Radiol, 51 (3), 316-25
DOI 10.3109/02841850903482901, PubMed 20092374

Server A, Kulle B, Gadmar ØB, Josefsen R, Kumar T, Nakstad PH (2010)
Measurements of diagnostic examination performance using quantitative apparent diffusion coefficient and proton MR spectroscopic imaging in the preoperative evaluation of tumor grade in cerebral gliomas
Eur J Radiol, 80 (2), 462-70
DOI 10.1016/j.ejrad.2010.07.017, PubMed 20708868

Server A, Orheim TE, Graff BA, Josefsen R, Kumar T, Nakstad PH (2010)
Diagnostic examination performance by using microvascular leakage, cerebral blood volume, and blood flow derived from 3-T dynamic susceptibility-weighted contrast-enhanced perfusion MR imaging in the differentiation of glioblastoma multiforme and brain metastasis
Neuroradiology, 53 (5), 319-30
DOI 10.1007/s00234-010-0740-3, PubMed 20625709

Publications 2009

Lloret I, Server A, Taksdal I (2009)
Calvarial lesions: a radiological approach to diagnosis
Acta Radiol, 50 (5), 531-42
DOI 10.1080/02841850902795274, PubMed 19353343

Server A, Kulle B, Maehlen J, Josefsen R, Schellhorn T, Kumar T, Langberg CW, Nakstad PH (2009)
Quantitative apparent diffusion coefficients in the characterization of brain tumors and associated peritumoral edema
Acta Radiol, 50 (6), 682-9
DOI 10.1080/02841850902933123, PubMed 19449234

Welander-Vatn AS, Jensen J, Lycke C, Agartz I, Server A, Gadmar ØB, Melle I, Nakstad PH, Andreassen OA (2009)
No altered dorsal anterior cingulate activation in bipolar II disorder patients during a Go/No-go task: an fMRI study
Bipolar Disord, 11 (3), 270-9
DOI 10.1111/j.1399-5618.2009.00680.x, PubMed 19419384

Publications 2008

Erichsen AK, Server A, Landrø NI, Sandvik L, Tallaksen CM (2008)
Proton magnetic resonance spectroscopy and cognition in patients with spastin mutations
J Neurol Sci, 277 (1-2), 124-9
DOI 10.1016/j.jns.2008.10.030, PubMed 19084842

Gilfillan GD, Selmer KK, Roxrud I, Smith R, Kyllerman M, Eiklid K, Kroken M, Mattingsdal M, Egeland T, Stenmark H, Sjøholm H, Server A, Samuelsson L, Christianson A, Tarpey P, Whibley A, Stratton MR, Futreal PA, Teague J, Edkins S, Gecz J, Turner G, Raymond FL, Schwartz C, Stevenson RE et al. (2008)
SLC9A6 mutations cause X-linked mental retardation, microcephaly, epilepsy, and ataxia, a phenotype mimicking Angelman syndrome
Am J Hum Genet, 82 (4), 1003-10
DOI 10.1016/j.ajhg.2008.01.013, PubMed 18342287

Ousdal OT, Jensen J, Server A, Hariri AR, Nakstad PH, Andreassen OA (2008)
The human amygdala is involved in general behavioral relevance detection: evidence from an event-related functional magnetic resonance imaging Go-NoGo task
Neuroscience, 156 (3), 450-5
DOI 10.1016/j.neuroscience.2008.07.066, PubMed 18775476

Publications 2006

Kanavin ØJ, Haakonsen M, Server A, Bajwa TJ, van der Knaap MS, Strømme P (2006)
Microphthalmia and brain atrophy: a novel neurodegenerative disease
Ann Neurol, 59 (4), 719-23
DOI 10.1002/ana.20827, PubMed 16566018

Lloret I, Server A, Bjerkehagen B (2006)
Primary spinal chondrosarcoma: radiologic findings with pathologic correlation
Acta Radiol, 47 (1), 77-84
DOI 10.1080/02841850500406852, PubMed 16498937

Publications 2005

Nakken KO, Eriksson AS, Kostov H, Lossius R, Haakonsen M, Server A, Røste GK (2005)
[Epilepsia partialis continua (Kojevnikov's syndrome)]
Tidsskr Nor Laegeforen, 125 (6), 746-9
PubMed 15776070

Nakken KO, Server A, Kostov H, Haakonsen M (2005)
A patient with a 44-year history of epilepsia partialis continua caused by a perirolandic cortical dysplasia
Epilepsy Behav, 6 (1), 94-7
DOI 10.1016/j.yebeh.2004.10.010, PubMed 15652740

Publications 2004

Matlary A, Prescott T, Tvedt B, Lindberg K, Server A, Aicardi J, Strømme P (2004)
Aicardi syndrome in a girl with mild developmental delay, absence of epilepsy and normal EEG
Clin Dysmorphol, 13 (4), 257-260
DOI 10.1097/00019605-200410000-00012, PubMed 15365465

Nakstad PH, Server A, Josefsen R (2004)
Traumatic cervical injuries in ankylosing spondylitis
Acta Radiol, 45 (2), 222-6
DOI 10.1080/02841850410004085, PubMed 15191110

Publications 2003

Dullerud R, Server A, Berg-Johnsen J (2003)
MR imaging of ventriculus terminalis of the conus medullaris. A report of two operated patients and a review of the literature
Acta Radiol, 44 (4), 444-6
DOI 10.1080/j.1600-0455.2003.00096.x, PubMed 12846697

Server A, Hovda KE, Nakstad PH, Jacobsen D, Dullerud R, Haakonsen M (2003)
Conventional and diffusion-weighted MRI in the evaluation of methanol poisoning
Acta Radiol, 44 (6), 691-5
DOI 10.1080/02841850312331287779, PubMed 14616218

Publications 2002

Server A, Tollesson G, Solgaard T, Haakonsen M, Johnsen UL (2002)
Vertex epidural hematoma - neuroradiological findings and management
Acta Radiol, 43 (5), 483-5
DOI 10.1034/j.1600-0455.2002.430507.x, PubMed 12423458

Publications 2001

Server A, Dullerud R, Haakonsen M, Nakstad PH, Johnsen UL, Magnaes B (2001)
Post-traumatic cerebral infarction. Neuroimaging findings, etiology and outcome
Acta Radiol, 42 (3), 254-60
DOI 10.1080/028418501127346792, PubMed 11350282