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Detection of Carotid Artery Disease by Duplex Ultrasound

Department of Surgery, University of Massachusetts Medical Center, 55 Lake Avenue North, Worcester, MA 01605.

Bruce S. Cutler, M.D.

H. Brownell Wheeler, M.D.

Department of Surgery, University of Massachusetts Medical Center, Worcester, Massachusetts.

Carotid duplex ultrasonography is a common noninvasive technique for evaluating cases of suspected extracranial carotid artery occlusive disease. This manuscript describes the procedure, with an emphasis on positive findings. A review of 16 published studies, totaling 2,168 arteriogram correlations, demonstrates a sensitivity, specificity, and overall accuracy of 95%, 73%, and 91%, respectively, for the detection of stenosis. The ability of the technique to predict the presence of plaque ulceration and intraplaque hemorrhage is less well defined. Carotid duplex ultrasonography is a highly accurate technique for the detection of extracranial carotid artery occlusive disease.

Key Words: carotid artery disease • duplex ultrasound • B-mode imaging

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