CT is now well established for the initial examination of the ruptured intracranial aneurysm. Aside its role in the detection of subarachnoid blood, its uses include prediction of aneurysm locaton and identification of complications. Altyough its role as an indicator of preperative prognosis is not certain, it might be expected that the extent of bleeding would correlate with the preoperative clinical grade and severityof bvasospasm. CT and angiographic findings in 34 patients with subarachnoid hemorrhage, due to proven intracranial aneurysms were analyzed for prognosticsignificance in relate with the preoperative clinical grade and severityof vasospasm. RESULT: 1. Male to female ratio was 0.9:1 and the most prevalent age group was 41 to 60 years. 2. The locations of the aneurysm, in order of frequency, were; anterior cerebral artery and anterior communicating artery aneurysm in 20 cases, middle cerebral artery in 7 cases posterior comunicating artery and internal carotid art ry in 5 cases. 3. The diameter of themost common of the intracranial aneurysm was 3 to 6 mm in 14 cases. 4 There was direct correlation between CT classification, severity of clinical grade and vasospas. 5. In conclusion, CT is useful as a prognostic indicator in intracranial aneurysm patient.