Browsing Matematisk institutt by Author "Eide, Per Kristian"

Now showing items 1-7 of 7

  • Apparent diffusion coefficient estimates based on 24 hours tracer movement support glymphatic transport in human cerebral cortex 
    Valnes, Lars Magnus; Mitusch, Sebastian; Ringstad, Geir; Eide, Per Kristian; Funke, Simon Wolfgang; Mardal, Kent-Andre (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
    The recently proposed glymphatic system suggests that bulk flow is important for clearing waste from the brain, and as such may underlie the development of e.g. Alzheimer’s disease. The glymphatic hypothesis is still ...
  • Brain-wide glymphatic enhancement and clearance in humans assessed with MRI 
    Ringstad, Geir; Valnes, Lars Magnus; Dale, Anders; Pripp, Are Hugo; Vatnehol, Svein Are Sirirud; Emblem, Kyrre Eeg; Mardal, Kent-Andre; Eide, Per Kristian (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)
    To what extent does the subarachnoid cerebrospinal fluid (CSF) compartment communicate directly with the extravascular compartment of human brain tissue? Interconnection between the subarachnoid CSF compartment and brain ...
  • Cerebrospinal fluid volumetric net flow rate and direction in idiopathic normal pressure hydrocephalus 
    Lindstrøm, Erika Kristina; Ringstad, Geir; Mardal, Kent-Andre; Eide, Per Kristian (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)
    The aim of the present study was to examine cerebrospinal fluid (CSF) volumetric net flow rate and direction at the cranio-cervical junction (CCJ) and cerebral aqueduct in individuals with idiopathic normal pressure ...
  • CSF circulation and dispersion yield rapid clearance from intracranial compartments 
    Hornkjøl, Martin; Valnes, Lars Magnus; Ringstad, Geir; Rognes, Marie Elisabeth; Eide, Per Kristian; Mardal, Kent-Andre; Vinje, Vegard (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)
    In this paper, we used a computational model to estimate the clearance of a tracer driven by the circulation of cerebrospinal fluid (CSF) produced in the choroid plexus (CP) located within the lateral ventricles. CSF was ...
  • Investigating molecular transport in the human brain from MRI with physics-informed neural networks 
    Zapf, Bastian; Haubner, Johannes; Kuchta, Miroslav; Ringstad, Geir; Eide, Per Kristian; Mardal, Kent-Andre (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)
    Abstract In recent years, a plethora of methods combining neural networks and partial differential equations have been developed. A widely known example are physics-informed neural networks, which solve problems involving ...
  • Non-invasive assessment of pulsatile intracranial pressure with phase-contrast magnetic resonance imaging 
    Ringstad, Geir; Lindstrøm, Erika Kristina; Vatnehol, Svein Are; Mardal, Kent-Andre; Emblem, Kyrre Eeg; Eide, Per Kristian (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
    Invasive monitoring of pulsatile intracranial pressure can accurately predict shunt response in patients with idiopathic normal pressure hydrocephalus, but may potentially cause complications such as bleeding and infection. ...
  • Respiratory influence on cerebrospinal fluid flow – a computational study based on long-term intracranial pressure measurements 
    Vinje, Vegard; Ringstad, Geir; Lindstrøm, Erika Kristina; Valnes, Lars Magnus; Rognes, Marie Elisabeth; Eide, Per Kristian; Mardal, Kent-Andre (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
    Current theories suggest that waste solutes are cleared from the brain via cerebrospinal fluid (CSF) flow, driven by pressure pulsations of possibly both cardiac and respiratory origin. In this study, we explored the ...