Computer Tomography in the Evaluation of Subarachnoid Hemorrhage

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Abstract
Repeat CT [computer tomography] scanning and cerebral angiography was performed in 68 consecutive patients with subarachnoid hemorrhage. Blood in the subarachnoid cisterns were discerned in 27 of 32 patients provided the examination was performed with 2 days of the bleeding. The distribution of cisternal blood can be identified which, in combination with the localization of a possible intracerebral hematoma, yields a good predictability as to the site of the ruptured aneurysm. The subsequent angiography can be directed to the relevant vessel in most cases. Repeat CT scanning can replace angiography in the evaluation of patients with deterioration of the clinical condition.

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