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J Neuroradiol. 2015 Feb;42(1):21-9. doi: 10.1016/j.neurad.2014.11.003. Epub 2015 Jan 27.

Perfusion CT and acute stroke imaging: foundations, applications, and literature review.

Author information

1
Division of Neuroradiology, University of Virginia, Charlottesville, VA, United States.
2
Division of Neuroradiology, University of Virginia, Charlottesville, VA, United States; Department of Radiology, Division of Neuroradiology, Stanford University, 300, Pasteur Drive, Room S047, Stanford, CA 94305-5105, United States. Electronic address: max.wintermark@gmail.com.

Abstract

Multimodal CT features prominently in the rapidly evolving field of acute stroke triage, with perfusion CT applications at the forefront of many clinical research efforts. Perfusion CT offers a time sensitive and widely practicable assessment of cerebral hemodynamics and parenchymal viability that is key in acute stroke management. The following article reviews perfusion CT foundations and technical considerations while highlighting recent modality advances and frontline clinical applications. Ischemic penumbra and other prognostic imaging biomarkers are discussed in the context of results of recent clinical trials (MR-RESCUE, IMS III, Tenecteplase, etc.), with an emphasis on evidence based image guided stroke triage.

KEYWORDS:

Acute ischemic stroke imaging; Cerebrovascular accident; Cerebrovascular circulation; Perfusion imaging

PMID:
25636991
DOI:
10.1016/j.neurad.2014.11.003
[Indexed for MEDLINE]

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