BJR -- Rilinger et al. 76 (911): 792 Figure 2

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Figure 2. (a) Virtual intra-arterial angioscopy (VIA) and (b) digital subtraction angiography (DSA) of a patient with short segment, high grade stenosis of the internal carotid artery. In VIA this stenosis appears to be an occlusion (*). (• marks the branching off of the external carotid artery.)