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Neuroimaging Clin N Am. 2011 May;21(2):303-13, x. doi: 10.1016/j.nic.2011.01.013.

Transient ischemic attack: definition, diagnosis, and risk stratification.

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  • 1Department of Radiology, A.A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Harvard Medical School, 13th Street, CNY149-2301, Boston, MA 02129, USA.

Abstract

Transient ischemic attack (TIA) can convey a high imminent risk for the development of a major stroke and is therefore considered to be a medical emergency. Recent evidence indicates that TIA with imaging proof of brain infarction represents an extremely unstable condition with early risk of stroke that is as much as 20 times higher than the risk after TIA without tissue damage. The use of neuroimaging in TIA is therefore critical not only for diagnosis but also for accurate risk stratification. In this article, recent advances in diagnostic imaging, categorizations, and risk stratification in TIA are discussed.

Copyright © 2011 Elsevier Inc. All rights reserved.

PMID:
21640301
[PubMed - indexed for MEDLINE]
PMCID:
PMC3109304
Free PMC Article

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