Abstract
The crux of the question addressed by our protagonists is whether the benefits of carotid angiography (CAA) outweigh the potential risks of the procedure compared with the noninvasive but less precise use of carotid Doppler ultrasound (DU) and lack of information about the intracranial circulation. The interpretation of the existing data can be, in part, philosophical: as Rothwell outlined, the net increase in risk for angiography is about 1 stroke for every 200 cases studied. Does this outweigh the benefits of intracranial vascular imaging provided by CAA? …
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