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Diagnosing Vasospasm After Subarachnoid Hemorrhage: CTA and CTP

Published online by Cambridge University Press:  23 September 2014

Craig D. Wilson  and
Jai Jai Shiva Shankar
Craig D. Wilson
Affiliation:
Department of Diagnostic Radiology, Dalhousie University, Halifax, Nova Scotia, Canada
Jai Jai Shiva Shankar*
Affiliation:
Department of Neuroradiology, Dalhousie University, Halifax, Nova Scotia, Canada
*
*Department of Neuroradiology, Dalhousie University, Halifax, Nova Scotia, B3K 6A3, Canada. Email: shivajai1@gmail.com
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Abstract

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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.

Type
Review Article
Information
Canadian Journal of Neurological Sciences , Volume 41 , Issue 3 , May 2014 , pp. 314 - 319
Copyright
Copyright © The Canadian Journal of Neurological 2014

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