%0 Journal Article
%T Combined native magnetic resonance angiography, flow-quantifying, and perfusion-imaging for impending second-stroke assessment
%A Chia-Wei Li
%A Chia-Yuen Chen
%A Henry Ka Fung Mak
%A Ming-Fang Lin
%A Wing P. Chan
%J SCIE-indexed Journal
%D 2019
%X Atherosclerotic carotid artery disease is the leading cause of ischemic stroke. Spencer and Reid first postulated the hemodynamic impact of stenosis within a vessel as a curve that predicts no substantive decline in flow until approximately 70% stenosis and a steep threshold for flow restriction at approximately 80% stenosis (1). Carotid stenosis risk appears to largely correspond to these thresholds, where moderate (50¨C69%) stenosis has a more benign prognosis than severe stenosis, and a progressive increase in stroke risk is associated with a degree of stenosis beyond 70%. Magnetic resonance imaging (MRI) is used widely in clinical diagnoses to reveal arterial stenosis noninvasively
%U http://qims.amegroups.com/article/view/24845/23357