The ABI-system 100 is a remarkable device which can measure and predict the risk of stroke, heart attack and mortality. Working in a similar manner to blood pressure measurements, the ABI device takes only one minute to take an accurate measurement. It can reliably diagnose the extent of atherosclerosis. With such quick, easy and reliable testing and diagnosis, the ABI-system 100 can be used to perform routine checks on any patient. This economical device is essential for daily routines and is a vital aid in cardiovascular diagnosis. An additional tool of pulse wave velocity can be used in conjunction with the system to measure arterial stiffness and diagnose PAOD.