Therefore, we conducted the present study to revisit duplex ultrasound criteria for determining normal (0-< 30% stenosis) versus abnormal (= 30%) in-stent carotid restenosis.

Carotid Artery Ultrasound Doppler Scan - This is a noninvasive diagnostic test that uses ultrasound to detect narrowing of the arteries in the neck and can estimate the degree of narrowing or ...

Sixty-three percent were done for ≥ 70% asymptomatic carotid stenosis and 37% for strokes/transient ischemic attacks. Table 1 summarizes the clinical and demographic characteristics. The ...