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. 2016 Dec;47(12):3041-3044.
doi: 10.1161/STROKEAHA.116.014418. Epub 2016 Nov 10.

Early Magnetic Resonance Imaging and Cognitive Markers of Hereditary Cerebral Amyloid Angiopathy

Sanneke van Rooden  1 , Anna M van Opstal  1 , Gerda Labadie  1 , Gisela M Terwindt  1 , Marieke J H Wermer  1 , Andrew G Webb  1 , Huub A M Middelkoop  1 , Steven M Greenberg  1 , Jeroen van der Grond  2 , Mark A van Buchem  1
Affiliations

Early Magnetic Resonance Imaging and Cognitive Markers of Hereditary Cerebral Amyloid Angiopathy

Sanneke van Rooden et al. Stroke. 2016 Dec.

Abstract

Background and purpose: Early markers for cerebral amyloid angiopathy are largely unknown. We aimed to identify which magnetic resonance imaging (MRI) (performed at 7 and 3T) and cognitive markers are an early sign in (pre) symptomatic subjects with hereditary cerebral hemorrhage with amyloidosis-Dutch type.

Methods: Twenty-seven DNA-proven Dutch-type mutation carriers (15 symptomatic and 12 presymptomatic) (mean age of 45.9 years) and 33 controls (mean age of 45.6 years) were included. 7T and 3T MRI was performed, cerebral amyloid angiopathy and small-vessel disease type MRI markers were estimated, and cognitive performance was assessed. Univariate general linear modeling analysis was used to assess the association between MRI markers and cognitive performance on the one hand and on the other, mutation status, adjusted for age, sex, and education.

Results: In symptomatic patients, all established cerebral amyloid angiopathy MRI markers (microbleeds, intracerebral hemorrhages, subarachnoid hemorrhages, superficial siderosis, microinfarcts, volume of white matter hyperintensities, and dilated perivascular spaces in centrum semiovale) were increased compared with controls (P<0.05). In presymptomatic subjects, the prevalence of microinfarcts and median volume of white matter hyperintensities were increased in comparison to controls (P<0.05). Symptomatic patients performed worse on all cognitive domains, whereas presymptomatic subjects did not show differences in comparison with controls (P<0.05).

Conclusions: White matter hyperintensities and microinfarcts are more prevalent among presymptomatic subjects and precede cognitive and neuropsychiatric symptoms and intracerebral hemorrhages.

Keywords: cerebral amyloid angiopathy; cognition; hemorrhage; magnetic resonance imaging; siderosis.

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Figures

Figure 1
Figure 1
Graphs of A) ICHs, B) microbleeds, C) microinfarcts and D) WMH volume against age in the three different groups.
See this image and copyright information in PMC

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