The mean PSVs for patients with normal stented carotid arteries based on CT angiography ... for determining normal (0-< 30% stenosis) versus abnormal (= 30%) in-stent carotid restenosis.

Background: Cardiac syndrome X is defined by a typical angina pectoris with normal or near normal (stenosis <40%) coronary angiogram with ... have indicated some abnormal perfusion scan.