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Section 4 - Diagnostic investigations

Published online by Cambridge University Press:  04 May 2010

J. Ricardo Carhuapoma
Affiliation:
Johns Hopkins Hospital, Baltimore
Stephan A. Mayer
Affiliation:
Columbia University, New York
Daniel F. Hanley
Affiliation:
Johns Hopkins Hospital, Baltimore
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Summary

Computerized tomography scans are rapid, readily available, and relatively inexpensive. Volume of hemorrhage on computerized tomography (CT) is an important predictor of mortality and functional ability after intracerebral hemorrhage (ICH). Computerized tomography angiography (CTA) offers many clinical advantages over cerebral digital subtraction angiography (DSA) for the evaluation of intracranial vascular abnormalities in cases of ICH. CTA must be shown to have similar sensitivity and specificity as DSA in the detection of secondary causes of ICH. The use of non-contrast CT in the initial evaluation of patients presenting with suspected ICH is well established and universally accepted. Recently, advances in CTA have enabled this modality to gain wide acceptance in evaluating possible secondary causes of ICH, such as aneurysm or vascular malformation. As scanner technology and software rendering capabilities continue to improve, CTA appears poised to replace DSA and become the new gold standard for such evaluations.
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Publisher: Cambridge University Press
Print publication year: 2009

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