Regarding"magnetic resonance angiography minimizes need for arteriography after inadequate carotid duplex ultrasound scanning".
Chang
John B
JB
Stein
Theodore A
TA
D016893:Carotid Stenosis / Q000000981:diagnostic imaging*; D002533:Cerebral Angiography; D006801:Humans; D018810:Magnetic Resonance Angiography; D018616:Ultrasonography, Doppler, Duplex