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Abstract #0167

Susceptibility Weighted Imaging at 3 Tesla Is Superior to Time-Of-Flight-Angiography for the Detection of Peripheral Thrombi in Patients with Acute Stroke

Alexander Radbruch1, 2, Johanna Mucke1, Matthias Roethke2, Heinz-Peter Schlemmer2, Sabine Heiland1, Martin Bendszus1, Stefan Rohde1

1Department of Neuroradiology, Heidelberg University Medical Center, Heidelberg, Germany; 2Department of Radiology, German Cancer Research Center (DKFZ), Heidelberg, Germany

While time of flight (TOF) angiography detects occlusion of arteries in patients with acute ischemic stroke due to the absence of blood flow in the occluded vessel, Susceptibility Weighted Imaging (SWI) enables visualization of the occluding thrombus. In our study we investigated the sensitivity of both methods for the detection of peripheral and central vessel occlusion and found SWI to be superior to TOF-angiography for the detection of peripheral thrombi.

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Keywords

absence accuracy acute additional affected angiography anterior appearance applications arteries artery assessed assessment audience axis blood bolus cancer central cerebral classification clearly clinical clot clots combined contrast correlate correlated deficit definable defined delayed delineation depicted detected detection detects determination determined diagnostic diameter difficulty displayed dynamic enables equal fast field flight flow frame fusion gradient greater hemispheric highlights identification identify impaired included incorporated indicates injection loss major martin medical middle occluded occlusion occurs patient patients peak perfusion peripheral peter physicians planar posterior presence products protocol proving radiology rarefaction regarding reliable respect routine scientists segment segments sensitivity sign since slice solution stroke suggest summarized superior susceptibility symptoms target terms territory third thrombi thrombus tool typical vascular vessel vessels visualized