Publications by Geir Ringstad
81 publications found
Original articles
Functional analysis of the human perivascular subarachnoid space
Nat Commun, 15 (1), 2001
DOI 10.1038/s41467-024-46329-1, PubMed 38443374
Empowering early career vascular neurosurgeons in the endovascular Era: Managing intraoperative aneurysm rupture through a systematic algorithmic approach
J Clin Neurosci, 120, 229-231
DOI 10.1016/j.jocn.2024.01.006, PubMed 38306902
Glymphatic-stagnated edema induced by traumatic brain injury
Trends Pharmacol Sci (in press)
DOI 10.1016/j.tips.2024.01.005, PubMed 38290921
Mechanisms behind changes of neurodegeneration biomarkers in plasma induced by sleep deprivation
Brain Commun, 5 (6), fcad343
DOI 10.1093/braincomms/fcad343, PubMed 38130841
In vivo distribution of cerebrospinal fluid tracer in human upper spinal cord and brain stem
JCI Insight, 8 (23)
DOI 10.1172/jci.insight.173276, PubMed 38063195
Prevalence of pineal cysts in healthy individuals: Emphasis on size, morphology and pineal recess crowding
J Neurol Sci, 453, 120801
DOI 10.1016/j.jns.2023.120801, PubMed 37741123
Human brain solute transport quantified by glymphatic MRI-informed biophysics during sleep and sleep deprivation
Fluids Barriers CNS, 20 (1), 62
DOI 10.1186/s12987-023-00459-8, PubMed 37596635
Prospective T1 mapping to assess gadolinium retention in brain after intrathecal gadobutrol
Neuroradiology, 65 (9), 1321-1331
DOI 10.1007/s00234-023-03198-7, PubMed 37479768
Plasma neurodegeneration biomarker concentrations associate with glymphatic and meningeal lymphatic measures in neurological disorders
Nat Commun, 14 (1), 2084
DOI 10.1038/s41467-023-37685-5, PubMed 37045847
Prospective Safety Study of Intrathecal Gadobutrol in Different Doses
AJNR Am J Neuroradiol, 44 (5), 511-516
DOI 10.3174/ajnr.A7841, PubMed 37024308
TGFBR3L is associated with gonadotropin production in non-functioning gonadotroph pituitary neuroendocrine tumours
Pituitary, 26 (2), 227-236
DOI 10.1007/s11102-023-01310-x, PubMed 36952069
Human parasagittal dura is a potential neuroimmune interface
Commun Biol, 6 (1), 260
DOI 10.1038/s42003-023-04634-3, PubMed 36906686
Investigating molecular transport in the human brain from MRI with physics-informed neural networks
Sci Rep, 12 (1), 15475
DOI 10.1038/s41598-022-19157-w, PubMed 36104360
CSF circulation and dispersion yield rapid clearance from intracranial compartments
Front Bioeng Biotechnol, 10, 932469
DOI 10.3389/fbioe.2022.932469, PubMed 36172015
Population pharmacokinetic modeling of CSF to blood clearance: prospective tracer study of 161 patients under work-up for CSF disorders
Fluids Barriers CNS, 19 (1), 55
DOI 10.1186/s12987-022-00352-w, PubMed 35778719
Molecular trans-dural efflux to skull bone marrow in humans with CSF disorders
Brain, 145 (4), 1464-1472
DOI 10.1093/brain/awab388, PubMed 34849609
Intrathecal Contrast-Enhanced Magnetic Resonance Imaging of Cerebrospinal Fluid Dynamics and Glymphatic Enhancement in Idiopathic Normal Pressure Hydrocephalus
Front Neurol, 13, 857328
DOI 10.3389/fneur.2022.857328, PubMed 35463139
Altered glymphatic enhancement of cerebrospinal fluid tracer in individuals with chronic poor sleep quality
J Cereb Blood Flow Metab, 42 (9), 1676-1692
DOI 10.1177/0271678X221090747, PubMed 35350917
Cerebrospinal fluid egress to human parasagittal dura and the impact of sleep deprivation
Brain Res, 1772, 147669
DOI 10.1016/j.brainres.2021.147669, PubMed 34587499
Clinical application of intrathecal gadobutrol for assessment of cerebrospinal fluid tracer clearance to blood
JCI Insight, 6 (9)
DOI 10.1172/jci.insight.147063, PubMed 33822769
Sleep deprivation impairs molecular clearance from the human brain
Brain, 144 (3), 863-874
DOI 10.1093/brain/awaa443, PubMed 33829232
Direction and magnitude of cerebrospinal fluid flow vary substantially across central nervous system diseases
Fluids Barriers CNS, 18 (1), 16
DOI 10.1186/s12987-021-00251-6, PubMed 33794929
Impaired glymphatic function in idiopathic intracranial hypertension
Brain Commun, 3 (2), fcab043
DOI 10.1093/braincomms/fcab043, PubMed 34235434
<b>Magnetic resonance imaging biomarkers of cerebrospinal fluid tracer dynamics</b> <b>in idiopathic normal pressure hydrocephalus</b>
Brain Commun, 2 (2), fcaa187
DOI 10.1093/braincomms/fcaa187, PubMed 33381757
In Vivo Evidence for Impaired Glymphatic Function in the Visual Pathway of Patients With Normal Pressure Hydrocephalus
Invest Ophthalmol Vis Sci, 61 (13), 24
DOI 10.1167/iovs.61.13.24, PubMed 33201186
In vivo assessment of cerebrospinal fluid efflux to nasal mucosa in humans
Sci Rep, 10 (1), 14974
DOI 10.1038/s41598-020-72031-5, PubMed 32917953
Off-label intrathecal use of gadobutrol: safety study and comparison of administration protocols
Neuroradiology, 63 (1), 51-61
DOI 10.1007/s00234-020-02519-4, PubMed 32803338
FSH Levels Are Related to E-cadherin Expression and Subcellular Location in Nonfunctioning Pituitary Tumors
J Clin Endocrinol Metab, 105 (8), 2587-94
DOI 10.1210/clinem/dgaa281, PubMed 32421791
Apparent diffusion coefficient estimates based on 24 hours tracer movement support glymphatic transport in human cerebral cortex
Sci Rep, 10 (1), 9176
DOI 10.1038/s41598-020-66042-5, PubMed 32514105
Surgery for Brainstem Cavernous Malformations: Association between Preoperative Grade and Postoperative Quality of Life
Oper Neurosurg (Hagerstown), 18 (6), 590-598
DOI 10.1093/ons/opz337, PubMed 31768544
Cerebrospinal fluid tracer efflux to parasagittal dura in humans
Nat Commun, 11 (1), 354
DOI 10.1038/s41467-019-14195-x, PubMed 31953399
Glymphatic MRI
Tidsskr Nor Laegeforen, 140 (1)
DOI 10.4045/tidsskr.19.0651, PubMed 31948208
Delayed clearance of cerebrospinal fluid tracer from choroid plexus in idiopathic normal pressure hydrocephalus
J Cereb Blood Flow Metab, 40 (9), 1849-1858
DOI 10.1177/0271678X19874790, PubMed 31495299
Intrathecal Use of Gadobutrol for Glymphatic MR Imaging: Prospective Safety Study of 100 Patients
AJNR Am J Neuroradiol, 40 (8), 1257-1264
DOI 10.3174/ajnr.A6136, PubMed 31320462
Respiratory influence on cerebrospinal fluid flow - a computational study based on long-term intracranial pressure measurements
Sci Rep, 9 (1), 9732
DOI 10.1038/s41598-019-46055-5, PubMed 31278278
Chiari malformation type 1- diagnostics and treatment
Tidsskr. Nor. Laegeforen., 139 (10), 931-935
The Human Visual Pathway Communicates Directly With the Subarachnoid Space
Invest Ophthalmol Vis Sci, 60 (7), 2773-2780
DOI 10.1167/iovs.19-26997, PubMed 31247084
Magnitude and direction of aqueductal cerebrospinal fluid flow: large variations in patients with intracranial aneurysms with or without a previous subarachnoid hemorrhage
Acta Neurochir (Wien), 161 (2), 247-256
DOI 10.1007/s00701-018-3730-6, PubMed 30443816
Are volume measurements of non-functioning pituitary adenomas reliable?
Endocrine, 63 (1), 171-176
DOI 10.1007/s12020-018-1752-8, PubMed 30259294
Brain-wide glymphatic enhancement and clearance in humans assessed with MRI
JCI Insight, 3 (13)
DOI 10.1172/jci.insight.121537, PubMed 29997300
Aggressive melanoma in an infant with congenital melanocytic nevus syndrome and multiple, NRAS and BRAF mutation-negative nodules
Pediatr Dermatol, 35 (5), e281-e285
DOI 10.1111/pde.13595, PubMed 29999207
Magnetic resonance imaging provides evidence of glymphatic drainage from human brain to cervical lymph nodes
Sci Rep, 8 (1), 7194
DOI 10.1038/s41598-018-25666-4, PubMed 29740121
Delayed clearance of cerebrospinal fluid tracer from entorhinal cortex in idiopathic normal pressure hydrocephalus: A glymphatic magnetic resonance imaging study
J Cereb Blood Flow Metab, 39 (7), 1355-1368
DOI 10.1177/0271678X18760974, PubMed 29485341
Cerebrospinal fluid volumetric net flow rate and direction in idiopathic normal pressure hydrocephalus
Neuroimage Clin, 20, 731-741
DOI 10.1016/j.nicl.2018.09.006, PubMed 30238917
Non-invasive assessment of pulsatile intracranial pressure with phase-contrast magnetic resonance imaging
PLoS One, 12 (11), e0188896
DOI 10.1371/journal.pone.0188896, PubMed 29190788
Glymphatic MRI in idiopathic normal pressure hydrocephalus
Brain, 140 (10), 2691-2705
DOI 10.1093/brain/awx191, PubMed 28969373
Early postoperative growth in non-functioning pituitary adenomas; A tool to tailor safe follow-up
Endocrine, 57 (1), 35-45
DOI 10.1007/s12020-017-1314-5, PubMed 28516382
Direct numerical simulation of transitional hydrodynamics of the cerebrospinal fluid in Chiari I malformation: The role of cranio-vertebral junction
Int J Numer Method Biomed Eng, 33 (9)
DOI 10.1002/cnm.2853, PubMed 27863152
[Idiopathic intracranial hypertension as a cause of headache]
Tidsskr Nor Laegeforen, 136 (22), 1895-1898
DOI 10.4045/tidsskr.16.0222, PubMed 27929555
Results of surgery in symptomatic non-hydrocephalic pineal cysts: role of magnetic resonance imaging biomarkers indicative of central venous hypertension
Acta Neurochir (Wien), 159 (2), 349-361
DOI 10.1007/s00701-016-3029-4, PubMed 27878615
Increased pulsatile intracranial pressure in patients with symptomatic pineal cysts and magnetic resonance imaging biomarkers indicative of central venous hypertension
J Neurol Sci, 367, 247-55
DOI 10.1016/j.jns.2016.06.028, PubMed 27423599
Phase-contrast magnetic resonance imaging reveals net retrograde aqueductal flow in idiopathic normal pressure hydrocephalus
J Neurosurg, 124 (6), 1850-7
DOI 10.3171/2015.6.JNS15496, PubMed 26636385
MRI T2 characteristics in somatotroph adenomas following somatostatin analog treatment in acromegaly
Endocrine, 53 (1), 327-30
DOI 10.1007/s12020-015-0816-2, PubMed 26615593
MRI with intrathecal MRI gadolinium contrast medium administration: a possible method to assess glymphatic function in human brain
Acta Radiol Open, 4 (11), 2058460115609635
DOI 10.1177/2058460115609635, PubMed 26634147
Quantitative analyses of T2-weighted MRI as a potential marker for response to somatostatin analogs in newly diagnosed acromegaly
Endocrine, 52 (2), 333-43
DOI 10.1007/s12020-015-0766-8, PubMed 26475495
Aqueductal Stroke Volume: Comparisons with Intracranial Pressure Scores in Idiopathic Normal Pressure Hydrocephalus
AJNR Am J Neuroradiol, 36 (9), 1623-30
DOI 10.3174/ajnr.A4340, PubMed 25977480
[Woman with recurrent uveitis and neurological symptoms]
Tidsskr Nor Laegeforen, 134 (12-13), 1245-8
DOI 10.4045/tidsskr.13.0433, PubMed 24989204
Epithelial splicing regulator protein 1 and alternative splicing in somatotroph adenomas
Endocrinology, 154 (9), 3331-43
DOI 10.1210/en.2013-1051, PubMed 23825128
Attenuated RORC expression in the presence of EMT progression in somatotroph adenomas following treatment with somatostatin analogs is associated with poor clinical recovery
PLoS One, 8 (6), e66927
DOI 10.1371/journal.pone.0066927, PubMed 23825587
Intensity of pituitary adenoma on T2-weighted magnetic resonance imaging predicts the response to octreotide treatment in newly diagnosed acromegaly
Clin Endocrinol (Oxf), 77 (1), 72-8
DOI 10.1111/j.1365-2265.2011.04286.x, PubMed 22066905
An unusual case of the syndrome of cervical rib with subclavian artery thrombosis and cerebellar and cerebral infarctions
BMC Neurol, 12, 48
DOI 10.1186/1471-2377-12-48, PubMed 22741548
An autostereoscopic 3D display can improve visualization of 3D models from intracranial MR angiography
Int J Comput Assist Radiol Surg, 5 (5), 549-54
DOI 10.1007/s11548-010-0509-5, PubMed 20652646
Periodic abducens nerve palsy in adults caused by neurovascular compression
J Neurol Neurosurg Psychiatry, 79 (1), 100-2
DOI 10.1136/jnnp.2007.124321, PubMed 17717022
Review articles
Human brain clearance imaging: Pathways taken by magnetic resonance imaging contrast agents after administration in cerebrospinal fluid and blood
NMR Biomed, e5159 (in press)
DOI 10.1002/nbm.5159, PubMed 38634301
Glymphatic-lymphatic coupling: assessment of the evidence from magnetic resonance imaging of humans
Cell Mol Life Sci, 81 (1), 131
DOI 10.1007/s00018-024-05141-2, PubMed 38472405
Current Understanding of the Anatomy, Physiology, and Magnetic Resonance Imaging of Neurofluids: Update From the 2022 "ISMRM Imaging Neurofluids Study group" Workshop in Rome
J Magn Reson Imaging, 59 (2), 431-449
DOI 10.1002/jmri.28759, PubMed 37141288
Low versus High Intracranial Compliance in Adult Patients with Chiari Malformation Type 1-Comparison of Long-Term Outcome After Tailored Treatment
World Neurosurg, 173, e699-e707
DOI 10.1016/j.wneu.2023.02.134, PubMed 36889634
[Chiari malformation type 1 – diagnosis and treatment]
Tidsskr Nor Laegeforen, 139 (10)
DOI 10.4045/tidsskr.18.0455, PubMed 31238671
Radiological imaging in acute ischaemic stroke
Eur J Neurol, 23 Suppl 1, 8-17
DOI 10.1111/ene.12849, PubMed 26563093
[CT colonography: a new method for detecting colorectal cancer and polyps]
Tidsskr Nor Laegeforen, 126 (11), 1470-3
PubMed 16732340
Other articles
Glymphatic imaging: a critical look at the DTI-ALPS index
Neuroradiology, 66 (2), 157-160
DOI 10.1007/s00234-023-03270-2, PubMed 38197950
Author Correction: In vivo assessment of cerebrospinal fluid efflux to nasal mucosa in humans
Sci Rep, 13 (1), 16607
DOI 10.1038/s41598-023-43372-8, PubMed 37789145
The pitfalls of interpreting hyperintense FLAIR signal as lymph outside the human brain
Nat Commun, 14 (1), 4913
DOI 10.1038/s41467-023-40508-2, PubMed 37587121
Physiological alterations of pineal recess crowding in symptomatic non-hydrocephalic pineal cysts
Brain Commun, 5 (2), fcad078
DOI 10.1093/braincomms/fcad078, PubMed 37501910
Safety of Intrathecal Gadolinium-based Contrast Agents and Benefit versus Risk
Radiology, 299 (1), E223-E224
DOI 10.1148/radiol.2021203351, PubMed 33591893
Glymphatic MRI
Tidsskr. Nor. Laegeforen., 140 (1), 69
In Vivo Imaging of Molecular Clearance From Human Entorhinal Cortex: A Possible Method for Preclinical Testing of Dementia
Gerontol Geriatr Med, 5, 2333721419889739
DOI 10.1177/2333721419889739, PubMed 31819895
"Bucket" cerebrospinal fluid bulk flow: when the terrain disagrees with the map
Acta Neurochir (Wien), 161 (2), 259-261
DOI 10.1007/s00701-018-3775-6, PubMed 30560378
Reply: To PMID 25977480
AJNR Am J Neuroradiol, 36 (9), 1633-4
DOI 10.3174/ajnr.A4488, PubMed 26251437
Severe macrophage activation syndrome and central nervous system involvement in juvenile dermatomyositis
Scand J Rheumatol, 43 (2), 171-3
DOI 10.3109/03009742.2013.863968, PubMed 24588361
Theses
Bonitetsutvikling og avvik mellom plan og kontroll
[Forfatterne], Ås, 47 bl.
BIBSYS 040859177