Assessment of leptomeningeal collaterals using dynamic CT angiography in patients with acute ischemic stroke.

ABSTRACT: Whole-brain dynamic time-resolved computed tomography angiography (CTA) is a technique developed on the new 320-detector row CT scanner capable of generating time-resolved cerebral angiograms from skull base to vertex. Unlike a conventional cerebral angiogram, this technique visualizes pial arterial filling in all vascular territories, thereby providing additional hemodynamic information. Ours was a retrospective study of consecutive patients with ischemic stroke and M1 middle cerebral artery +/- intracranial internal carotid artery occlusions presenting to our center from June 2010 and undergoing dynamic time-resolved CTA and perfusion CT within 6 hours of symptom onset. Leptomeningeal collateral status was assessed by determining relative prominence of pial arteries in the ischemic regio

SUBMITTER: Menon BK 

PROVIDER: S-EPMC3587807 | biostudies-literature | 2013 Mar

REPOSITORIES: biostudies-literature