ANKLE BRACHIAL INDEX (ABI)

ABI is a form of physiological measurement that provides valuable information about the functional status of peripheral arteries and predicts the risk of cardiovascular disease. It works by calculating ratio of systolic blood pressure of one of the arteries of ankle and that of brachial artery in the arm. Normal values have been established by various multi centric trials and values above or below normal have been demonstrated to be associated with specific cardiovascular diseases like lower extremity peripheral arterial disease. The following review article shades some light on the topic.