Publications by authors named "Geir Ringstad"

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Intrathecal contrast-enhanced MRI reveals an alternative route for drug delivery and brain tumor visualization.
Kyrre E Emblem, Geir Ringstad, Siri Fløgstad Svensson, Svein Are Sirirud Vatnehol, Trygve Holck Storås

Cancer Lett· January 2026

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Optimized Magnetic Resonance T1 Mapping for Estimation of Intrathecal Contrast Concentrations in Human Brain and Ventricular Cerebrospinal Fluid.
Lars Magnus Valnes, Trygve Holck Storås, Svein Are Sirirud Vatnehol, Geir Ringstad, Kyrre Eeg Emblem

Magn Reson Med· December 2025

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Cranial nerves as pathways for human cerebrospinal fluid efflux: In vivo evidence.
Benedicte Falkenberg-Jensen, Are Hugo Pripp, Geir Ringstad, Per Kristian Eide

J Cereb Blood Flow Metab· November 2025

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T2-Weighted T1 Mapping and Automated Segmentation of CSF: Assessment of Solute Gradients in the Healthy Brain.
Tryggve Holck Storås, Sofie Lysholm Lian, Ingrid Mossige, Jørgen Riseth, Siri Fløgstad Svensson, Geir Ringstad

J Magn Reson Imaging· November 2025

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Geometry Reduced Order Modeling (GROM) with application to modeling of glymphatic function.
Andreas Solheim, Geir Ringstad, Per Kristian Eide, Kent-Andre Mardal

Brain Res Bull· October 2025

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Volume of parasagittal dura is associated with blood markers of systemic inflammation.
Paulina Eide, Erik Melin, Geir Ringstad, Per Kristian Eide, Angelika Sorteberg

Acta Neurochir (Wien)· September 2025

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Predicting lesion reversal in acute cerebral ischaemia via apparent diffusion coefficient threshold on diffusion-weighted MRI.
Thor Håkon Skattør, Atle Bjørnerud, Terje Nome, Kine Mari Bakke, Brian Anthony Enriquez, Geir Ringstad

Eur Radiol· September 2025

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Altered brain fluid dynamics in spontaneous intracranial hypotension.
Per Kristian Eide, Markus Hovd, Are Pripp, Øivind Gjertsen, Grethe Løvland, Geir Ringstad

Fluids Barriers CNS· July 2025

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Gadolinium-Based Imaging and the Study of Neurofluid Dynamics.
Geir Ringstad, Per Kristian Eide, Shinji Naganawa, Nivedita Agarwal

Neuroimaging Clin N Am· May 2025

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U-Net-Based Prediction of Cerebrospinal Fluid Distribution and Ventricular Reflux Grading.
Melanie Rieff, Fabian Holzberger, Oksana Lapina, Geir Ringstad, Lars Magnus Valnes

NMR Biomed· May 2025

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Evidence for cellular and solute passage between the brain and skull bone marrow across meninges: A systematic review.
Helena Eide Therkelsen, Rune Enger, Per Kristian Eide, Geir Ringstad

J Cereb Blood Flow Metab· April 2025

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Impact of Subarachnoid Hemorrhage on Human Glymphatic Function: A Time-Evolution Magnetic Resonance Imaging Study.
Per Kristian Eide, Ragnhild Marie Undseth, Are Pripp, Aslan Lashkarivand, Bård Nedregaard, Geir Ringstad

Stroke· March 2025

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Significant individual variation in cardiac-cycle-linked cerebrospinal fluid production following subarachnoid hemorrhage.
Per Kristian Eide, Ragnhild Marie Undseth, Øyvind Gjertsen, Lars Magnus Valnes, Geir Ringstad

Fluids Barriers CNS· October 2024

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Human brain clearance imaging: Pathways taken by magnetic resonance imaging contrast agents after administration in cerebrospinal fluid and blood.
Matthias J P van Osch, Anders Wåhlin, Paul Scheyhing, Ingrid Mossige, Lydiane Hirschler, Geir Ringstad

NMR Biomed· September 2024

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Unravelling pituitary tumours in medically treated patients with acromegaly: the impact of systematic MRI reassessment.
Shahriar Atai, Martin Knudtzon Andersen, Markus Wiedmann, Daniel Dahlberg, Kristin Astrid B Øystese, Geir Ringstad

Acta Radiol· July 2024

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Glymphatic-stagnated edema induced by traumatic brain injury.
Per Kristian Eide, Geir Ringstad

Trends Pharmacol Sci· May 2024

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Functional analysis of the human perivascular subarachnoid space.
Per Kristian Eide, Geir Ringstad

Nat Commun· March 2024

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Glymphatic-lymphatic coupling: assessment of the evidence from magnetic resonance imaging of humans.
Geir Ringstad, Per Kristian Eide

Cell Mol Life Sci· March 2024

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Glymphatic imaging: a critical look at the DTI-ALPS index.
Geir Ringstad

Neuroradiology· February 2024

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Empowering early career vascular neurosurgeons in the endovascular Era: Managing intraoperative aneurysm rupture through a systematic algorithmic approach.
Aslan Lashkarivand, Geir Ringstad, Markus Wiedmann

J Clin Neurosci· February 2024

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In vivo distribution of cerebrospinal fluid tracer in human upper spinal cord and brain stem.
Erik Melin, Are Hugo Pripp, Per Kristian Eide, Geir Ringstad

JCI Insight· December 2023

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Mechanisms behind changes of neurodegeneration biomarkers in plasma induced by sleep deprivation.
Per Kristian Eide, Aslan Lashkarivand, Are Hugo Pripp, Lars Magnus Valnes, Markus Hovd, Geir Ringstad

Brain Commun· December 2023

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Prevalence of pineal cysts in healthy individuals: Emphasis on size, morphology and pineal recess crowding.
Bogna Warsza, Pernille Due-Tønnessen, Paulina Due-Tønnessen, Are Pripp, Geir Ringstad

J Neurol Sci· October 2023

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Author Correction: In vivo assessment of cerebrospinal fluid efflux to nasal mucosa in humans.
Erik Melin, Per Kristian Eide, Geir Ringstad

Sci Rep· October 2023

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