作者: Max Wintermark , Howard A. Rowley , Michael H. Lev
DOI: 10.1148/RADIOL.2513081073
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摘要: Max Wintermark, MD Howard A. Rowley, Michael H. Lev, A s outlined by Kohrmann and Schellinger in their pro magnetic resonance (MR) imaging article, the two primary goals of acute stroke are to distinguish ischemic from intracranial hemorrhage (ICH) select patients for reperfusion therapies. In this we too will focus on imaging. Although our remains nonhemorrhagic with respect advantages advanced computed tomography (CT) over MR evaluation all comers, wish underscore that CT angiography is becoming increasingly important ICH, as it has ability depict underlying vascular malformations, such aneurysms, could warrant immediate surgery. Moreover, detection active contrast material extravasation at (the recently described spot sign) also predictive value regard both hematoma growth (1,2) mortality (3). This sign potential, future clinical trials, be used ICH who eligible factor VIIa therapy. To knowledge, there no counterpart sign. Also, studies can difficult perform they often critically ill require mechanical support intensive monitoring; furthermore, a need extremely rapid assessment triage, given potential risks herniation, hypertension, death. an available, affordable, and— triage—accurate modality.