COrtical Superficial Siderosis and REcurrent Lobar Intracerebral Hemorrhage in Cerebral Amyloid Angiopathy.
Cerebral amyloid angiopathy (CAA) is a major cause of lobar intracerebral hemorrhage (ICH) in the elderly with high risk of recurrence. The investigators aim to determine the relationship between cortical superficial siderosis (cSS), a MRI hemorrhagic marker of CAA and the risk of symptomatic ICH recurrence in a multicentric prospective cohort of patients with acute lobar ICH related to CAA. The investigators hypothesize that patients with cSS have an increased risk of recurrent symptomatic ICH relative to those without cSS.
• Lobar ICH within 30 days after onset
• Available brain MRI sequences of adequate quality including fluid-attenuated inversion recovery (FLAIR) and T2\*-weighted gradient-recalled echo (T2\*-GRE) sequences.
• Modified Boston criteria for probable or possible CAA
• Age ≥ 55 years
• Written consent