| Are CT Angiography Source Images Accurate for Evaluating Infarct Volume? | |
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MedLine Citation:
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PMID: 22233142 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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Noncontrast computed tomography (NCCT) has been considered the standard test for determining eligibility for thrombolysis from the beginning of the thrombolytic era. CT angiography (CTA) reveals the cranio-cervical vessel and the occlusion site. Furthermore, the source image (SI) of the CTA (CTA-SI) reflects cerebral blood volume and can detect the infarct core as hypoattenuated areas with higher sensitivity than ischemic changes on NCCT. However, it was recently reported that the CTA-SI using fast acquisition protocol significantly overestimated the infarct core mostly on the basis of the poor collaterals. On the other hand, CTA-SI using standardized protocol was reported to be good predictor for final infarct extension. Imaging used in the setting of acute stroke should accurately address the presence and size of an irreversible ischemic core. Further studies are required to confirm whether another measure or adjustment in CTA-SI values can be more reliable for evaluating the infarct core. |
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Authors:
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Masaki Watanabe; Adnan I Qureshi |
Publication Detail:
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Type: JOURNAL ARTICLE Date: 2012-1-10 |
Journal Detail:
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Title: Journal of neuroimaging : official journal of the American Society of Neuroimaging Volume: - ISSN: 1552-6569 ISO Abbreviation: - Publication Date: 2012 Jan |
Date Detail:
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Created Date: 2012-1-11 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9102705 Medline TA: J Neuroimaging Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Copyright Information:
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© 2012 by the American Society of Neuroimaging. |
Affiliation:
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From the Zeenat Qureshi Stroke Research Center, University of Minnesota, Minneapolis, MN. |
Export Citation:
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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