title: Prediction of delayed cerebral ischaemia after subarachnoid haemorrhage by computed tomography.
abstract: Computed tomography was performed in 100 patients within 4 days of aneurysmal subarachnoid haemorrhage. The CT appearances have been divided into five grades by the thickness and extent of the subarachnoid blood. Delayed cerebral ischaemia occurred in 62.5% of patients with most blood on CT, in 33.3% of those in the next grade and in none of the other grades with less amounts of blood. The outcome from delayed ischaemia was worse in those with most CT blood.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002545:Brain Ischemia / Q000000981:diagnostic imaging / Q000209:etiology*; D002648:Child; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011859:Radiography; D012306:Risk; D013345:Subarachnoid Hemorrhage / Q000150:complications / Q000000981:diagnostic imaging*