• Laura Stein, John W Liang, and Jesse Weinberger.
• Department of Neurology, Icahn School of Medicine at Mount Sinai, New York, NY.
• J Neuroimaging. 2017 Jul 1; 27 (4): 376-380.

Background And PurposeWhile the majority of cerebral ischemic events due to carotid occlusive disease result from atherosclerotic plaque rupture, intraluminal carotid artery thrombus occasionally occurs in patients without preexisting carotid atherosclerosis. Identification of nonatherosclerotic thrombus as the cause of the carotid occlusive disease can obviate the need for an interventional procedure, and resolution of thrombus can be monitored with B-mode duplex ultrasonography.MethodsWe reviewed 3 patients treated on The Mount Sinai Hospital Stroke Unit with anticoagulation for nonatherosclerotic carotid thrombi and followed with serial Doppler ultrasonogrpahy for resolution of thrombus.ResultsOcclusive carotid thrombus was successfully treated in all 3 patients with systemic anticoagulation. B-mode duplex ultrasonography allowed for demonstration of resolving thrombus.ConclusionDifferentiation between a stenotic plaque and occlusive thrombus can be achieved by ultrasonographic analysis of thrombus morphology, attachment site potential, and characteristics of a resolving thrombus. Systemic anticoagulation can safely and effectively eliminate the risk for future embolization and complete occlusion of the carotid artery in patients who present with transient ischemic events or completed infarcts of small size.Copyright © 2017 by the American Society of Neuroimaging.

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