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2015 ; 10
(3
): 376-81
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Enlarged perivascular spaces and cerebral small vessel disease
#MMPMID23692610
Potter GM
; Doubal FN
; Jackson CA
; Chappell FM
; Sudlow CL
; Dennis MS
; Wardlaw JM
Int J Stroke
2015[Apr]; 10
(3
): 376-81
PMID23692610
show ga
BACKGROUND AND AIMS: Enlarged perivascular spaces (also known as Virchow-Robin
spaces) on T2-weighted brain magnetic resonance imaging are common, but their
etiology, and specificity to small vessel as opposed to general cerebrovascular
disease or ageing, is unclear. We tested the association between enlarged
perivascular spaces and ischemic stroke subtype, other markers of small vessel
disease, and common vascular risk factors. METHODS: We prospectively recruited
patients with acute stroke, diagnosed and subtyped by a stroke physician using
clinical features and brain magnetic resonance imaging. A neuroradiologist rated
basal ganglia and centrum semiovale enlarged perivascular spaces on a five-point
scale, white matter lesions, recent and old infarcts, and cerebral atrophy. We
assessed associations between basal ganglia-, centrum semiovale- and total
(combined basal ganglia and centrum semiovale) enlarged perivascular spaces,
stroke subtype, white matter lesions, atrophy, and vascular risk factors.
RESULTS: Among 298 patients (mean age 68 years), after adjusting for vascular
risk factors and white matter lesions, basal ganglia-enlarged perivascular spaces
were associated with increasing age (P = 0.001), centrum semiovale-enlarged
perivascular spaces (P < 0.001), cerebral atrophy (P = 0.03), and lacunar stroke
subtype (P = 0.04). Centrum semiovale-enlarged perivascular spaces were
associated mainly with basal ganglia-enlarged perivascular spaces. Total enlarged
perivascular spaces were associated with increasing age (P = 0.01), deep white
matter lesions (P = 0.005), and previous stroke (P = 0.006). CONCLUSIONS:
Enlarged perivascular spaces are associated with age, lacunar stroke subtype and
white matter lesions and should be considered as another magnetic resonance
imaging marker of cerebral small vessel disease. Further evaluation of enlarged
perivascular spaces in studies of ageing, stroke, and dementia is needed to
determine their pathophysiological importance.
|Aged
[MESH]
|Aged, 80 and over
[MESH]
|Cerebral Hemorrhage/diagnosis/*etiology
[MESH]
|Cerebral Small Vessel Diseases/*complications
[MESH]