Posterior reversible encephalopathy syndrome (PRES) and CT perfusion changes

International Journal of Emergency Medicine, 04/06/2012

Cerebral CT perfusion (CTP) has proved to be a very sensitive measure of cerebral blood flow dynamics, most commonly employed to delineate the infarcted tissue from penumbra (at–risk tissue) in ischemic strokes. But abnormal CTP is also seen in stroke mimics such as seizures, hypoglycemia, tumors, migraines and PRES.

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