Influence of Cerebral Oedema in Intracerebral Haemorrhage

Inclusion Criteria: * With a spontaneous ICH, i.e. non traumatic * Admitted within 12 hours of stroke onset. For wake-up strokes, time of last seen well will be considered as stroke onset * Patient insured under the French social security * Consent form signed Exclusion Criteria: * Pure intraventricular haemorrhages * "secondary" ICH: ICH resulting from intracranial vascular malformation, intracranial venous thrombosis, head trauma or tumour; haemorrhagic transformation within an infarct * Pre-admission modified Rankin score of 4 or 5 * Life expectancy of less than 1 year related to comorbidities (end stage cancer, end stage organ failure) * Pregnancy or breastfeeding or Women of childbearing age without effective contraception (a pregnancy test will be done) * Adults who are deprived of their liberty by judicial or administrative decision * Referral from other hospitals * Contra-indication to MRI : claustrophobia, ocular metallic foreign bodies (accidental or other) or in a risk area (nervous or vascular system);irremovable implanted medical device (pacemaker, neurostimulator, cochlear implants and others);metallic heart valve (mainly old heart valves) or vascular clips previously implanted on cranial aneurysms; gadolinium allergy * No consent form