Assessment of the virchow-robin spaces in Alzheimer disease, mild cognitive impairment, and normal aging, using high-field MR imaging

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DOIResolve DOI: http://doi.org/10.3174/ajnr.A2541
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TypeArticle
Journal titleAmerican Journal of Neuroradiology
ISSN0195-6108
Volume32
Issue8
Pages14901495; # of pages: 6
Subjectaged; aging; Alzheimer disease; article; basal ganglion; brain atrophy; brain stem; central nervous system; hippocampus; human; major clinical study; mild cognitive impairment; nuclear magnetic resonance imaging; virchow robin space; white matter; Aged; Aging; Alzheimer Disease; Brain; Female; Humans; Magnetic Resonance Imaging; Male; Mild Cognitive Impairment
AbstractBACKGROUND AND PURPOSE: VRSs are the perivascular spaces surrounding the deep perforating arteries in the brain. Although VRS variations with age and disease pathologies have been reported previously, the radiologic characteristics of the VRS in relation to AD are poorly understood. This study investigated the prevalence, spatial distribution, and severity of the VRS in AD, MCI, and older adults who were CN. It also investigated the relationship of the VRS to white matter changes. MATERIALS AND METHODS: Structural MR imaging data were acquired from 158 participants (AD = 37, MCI = 71, CN = 50, mean age = 74.97 ± 7.20 years) who had undergone T1WI at 3T. The severity of VRS in the white matter, basal ganglia, hippocampus, and brain stem structures was evaluated by using a semiquantitative scale, adapted from existing rating scales. A VRS total score summarizing the subscales was calculated to assess the whole-brain VRSs. RESULTS: VRSs were observed in multiple brain regions of all participants, typically presented as <2-mm well-margined symmetric round-, oval- and linear-shaped hypointensities on T1WI. The VRS total score increased with leukoaraiosis, atrophy, and advanced age (P < .001). Individuals with AD and MCI showed greater levels of VRS than control subjects. The VRS total score discriminated individuals with AD and those who were CN with an accuracy of 0.79 (95% CI, 0.69-0.89). CONCLUSIONS: VRSs are common in older adults and are more severe in AD and MCI than in CN. Whether increased VRSs can be reliably used to aid in AD diagnosis warrants further investigation.
Publication date
LanguageEnglish
AffiliationNational Research Council Canada (NRC-CNRC); NRC Institute for Biodiagnostics (IBD-IBD)
Peer reviewedYes
NPARC number21271430
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Record identifierad7cb488-ef4b-4db7-a5a1-e8a4467a44b2
Record created2014-03-24
Record modified2016-05-09
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