Article

Black rims at 7 Tesla MRI: accumulation of iron around perivascular spaces in cerebral amyloid angiopathy

2026-04-23

Abstract excerpt

A prominent radiological manifestation of cerebral amyloid angiopathy (CAA) is enlargement of perivascular spaces (EPVS), which is suggested to result from fluid stagnation due to impaired perivascular clearance. Here, we report a novel observation of hypointense rims in cerebral white matter surrounding EPVS near haemorrhages on in vivo 7T Gradient Echo MRI. We hypothesised that the observed ‘black rim’ pattern...

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Literature Corpus work: 8c6e0060-b506-5a5d-bd9e-eca3ba6717b9
DOI: 10.64898/2026.04.22.26351134

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