We review, systematize and discuss models of diffusion in neuronal tissue, by putting them
into an overarching physical context of coarse‐graining over an increasing diffusion length …

Mapping tissue microstructure with MRI holds great promise as a noninvasive window into
tissue organization at the cellular level. Having originated within the realm of diffusion NMR in …

Stejskal and Tanner's ingenious pulsed field gradient design from 1965 has made diffusion
NMR and MRI the mainstay of most studies seeking to resolve microstructural information in …

Normal brain function depends critically on moment-to-moment regulation of oxygen supply
by the bloodstream to meet changing metabolic needs. Neurovascular coupling, a range of …

Diffusion-weighted imaging (DWI) provides a noninvasive tool to probe tissue microstructure.
We propose a simplified model of neural cytoarchitecture intended to capture the essential …

Due to its unique sensitivity to tissue microstructure, diffusion-weighted magnetic resonance
imaging (MRI) has found many applications in clinical and fundamental science. With few …

… Jespersen 22 showed that, for macroscopically isotropic samples in the long diffusion
time limit, ε is proportional to the measure of eccentricity I MA introduced in 21: I MA = (15/2)ε. …

It is widely accepted that hypoperfusion and changes in capillary morphology are involved
in the etiopathogenesis of Alzheimer's disease (AD). This is difficult to reconcile with the …

… *SN Jespersen is with the Center of Functionally Integrative Neuroscience, Aarhus University
Hospital, Aarhus, Denmark (phone: +45 89493334; fax: +45 89494400; e-mail: sune@cfin.…

Most patients who die after traumatic brain injury (TBI) show evidence of ischemic brain
damage. Nevertheless, it has proven difficult to demonstrate cerebral ischemia in TBI patients. …