Evaluating the atherosclerosis based on blood flow velocity waveform of common carotid artery

Throughout the world, there are a lot of patients who suffer from atherosclerosis leading to myocardial infarction and stroke etc. Cardio-ankle vascular index (CAVI) is well known as a screening tool for atherosclerosis. However, it requires a lot of sensors contacting the body. In this paper, we propose new method to evaluate the atherosclerosis based on four indices (SL, A, A_HR and A_S1I) obtained from blood flow velocity waveform. Working on the healthy volunteer, we investigate the relationship between four indices and CAVI. As a result, we show that AHR in male group has the best correlation with CAVI (correlation coefficient: r = 0.767). The proposed index A_HR is expected to be useful for evaluating the atherosclerosis.