Fig. 2: Left: Contrast-enhanced magnetic resonance angiogram of the right carotid artery showing a tight stenosis (> 70%) of the right internal carotid artery just distal to the bifurcation. Right: Formal selective cerebral angiogram showing the same lesion. The patient had had a TIA and was enrolled in a clinical trial in which he received carotid angioplasty and stenting to treat his symptomatic carotid stenosis.