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• W2011058648 abstract "<h3>Objective:</h3> We investigated whether severe, MRI-visible perivascular spaces (PVS) in the cerebral hemisphere white matter (centrum semiovale) are more common in patients with pathology-proven cerebral amyloid angiopathy (CAA) than in those with pathology-proven non–CAA-related intracerebral hemorrhage (ICH). <h3>Methods:</h3> Using a validated 4-point scale on axial T2-weighted MRI, we compared PVS in patients with pathology-proven CAA to PVS in those with spontaneous ICH but no histopathologic evidence of CAA. In a preliminary analysis restricted to patients with T2*-weighted gradient-recalled echo MRI, we also investigated whether including severe centrum semiovale PVS increases the sensitivity of existing diagnostic criteria for probable CAA. <h3>Results:</h3> Fourteen patients with CAA and 10 patients with non–CAA-related ICH were included. Eight of the patients with CAA were admitted for symptomatic, spontaneous lobar ICH, 1 because of ischemic stroke, 1 with transient focal neurologic episodes, and 4 due to cognitive decline. Severe (>20) centrum semiovale PVS were more frequent in patients with CAA compared to controls (12/14 [85.7%; 95% confidence interval (CI): 57.2%–98.2%] vs 0/10 [1-sided 95% CI: 0%–30.8%], <i>p</i> < 0.0005); this was robust to adjustment for age. The original Boston criteria for probable CAA showed a sensitivity of 76.9% (95% CI: 46.2%–95%), which increased to 92.3% (95% CI: 64%–99.8%), without loss of specificity, after including severe centrum semiovale PVS. <h3>Conclusions:</h3> Severe centrum semiovale PVS on MRI may be a promising new neuroimaging marker for the in vivo diagnosis of CAA. However, our findings are preliminary and require confirmation and external validation in larger cohorts of pathology-proven CAA." @default.
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• W2011058648 date "2013-11-27" @default.
• W2011058648 modified "2023-09-30" @default.
• W2011058648 title "White matter perivascular spaces: An MRI marker in pathology-proven cerebral amyloid angiopathy?" @default.
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• W2011058648 doi "https://doi.org/10.1212/01.wnl.0000438225.02729.04" @default.
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