What is an Arterial Stiffness Index (ASI) screening?
A.The ASI screening of the brachial artery has been demonstrated in studies to correlate with the coronary arteries as to the extent of atherosclerotic lesions. The ASI is a number that correlates with atherosclerosis. Since atherosclerosis reduces flexibility in the arteries, the higher the ASI, the more likely someone is to have hardening of the arteries.