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  • Title: Diagnosing Vasospasm After Subarachnoid Hemorrhage: CTA and CTP.
    Author: Wilson CD, Shankar JJ.
    Journal: Can J Neurol Sci; 2014 May; 41(3):314-9. PubMed ID: 24718816.
    Abstract:
    Cerebral vasospasm is a potentially devastating complication in patients with aneurysmal subarachnoid hemorrhage. The purpose of this article is to review the use of computed tomogram (CT) angiography and CT perfusion in the diagnosis of cerebral vasospasm after aneurysmal subarachnoid hemorrhage and also assess their use in guiding treatment decisions. Both techniques are widely used for other indications but their use in cerebral vasospasm has not been well defined. Computed tomogram angiography can directly visualize arterial narrowing and CT perfusion is able to evaluate differences in perfusion parameters after aneurysmal subarachnoid hemorrhage with high sensitivity and specificity. CT perfusion is better at predicting which patients require endovascular treatment.
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