Neurovascular imaging

Neurovascular imaging stresses the role of MR angiography and color flow Doppler sonography in selected congenital vascular anomalies, aneurysms, arteriovenous malformations, arteriosclerotic cerebrovascular disease, and dural sinus thrombosis. The application of North American Symptomatic Carotid Endarterectomy Trial criteria to the diagnosis of carotid artery stenosis and the correlations among radiograph arteriography, sonography, and MR angiography are reviewed in detail. The new clinical advisory on endarterectomy for asymptomatic 60% to 99% carotid stenosis is reviewed as well.