Duplex ultrasonography should be used in asymptomatic patients with known or suspected carotid arterial stenosis and should be considered for use in asymptomatic patients who have symptomatic peripheral arterial disease, coronary artery disease, or an atherosclerotic aortic aneurysm, and even in the asymptomatic patients who simply are at high cardiovascular risk.
Duplex ultrasonography should be used in asymptomatic patients with known or suspected carotid arterial stenosis and should be considered for use in asymptomatic patients who have symptomatic peripheral arterial disease, coronary artery disease, or an atherosclerotic aortic aneurysm, and even in the asymptomatic patients who simply are at high cardiovascular risk.
New Guidelines for the Management of Extracranial Carotid Arterial Disease
October 15, 2011