2020 Volume Annual58 Issue Abstract Pages 280
Atherosclerosis is one of the major risk factors of cardiovascular disease. Carotid ultrasonography is widely used to diagnose the atherosclerosis. The authors are examining the applicability of a ultrasonic doppler blood velocimeter as a simple screening device. However, the relationship between the atherosclerosis and blood flow velocity waveforms (BFVW) has not been fully elucidated. In this study, we investigated whether BFVW in common carotid artery was related to the degree of arteriosclerosis in the patients(N=83). The intima-media thickness and plaque index obtained by ultrasonography were used as the degree of atherosclerosis. Two types of BFVW in common carotid artery were determined by the k-means clustering from results of principal component analysis of measured values of ultrasonography. As results of them, there was a significant difference between BFVW types in each index of atherosclerosis. These results suggest that the degree of atherosclerosis can be evaluated by BFVW.
