Abstract: 【Abstract】 Objective To observe the relationship between carotid arteries ultrasound and cardiovascular risk factors,clinical cardiovascu1ar events as well as the degree of coronary artery disease in high cardiovascular risk patients.Methods Relevant clinical data, including height, weight, BMI, blood pressure, heart rate, history and blood biochemistry test were collected in 131consecutive patients with high cardiovascular risk and needed to be proformed selective coronary angiography(CAG). The patients were divided into 4 groups by Intima-media thickness(IMT) and degree of carotid plague through carotid arteries ultrasound exam. Plaque is defined as a focal structure that encroaches into the arterial lumen ,IMT value or demonstrates a thickness >1.5 mm as measured from the media-adventitia interface to the intima-lumen interface. The number of risk factors and cardiovascular events in four groups were compared.Results Compared within four groups,the cardiovascular events and the number of cardiovascular risk factors were highest in the fourth group (0.00±0.00;0.29±0.47; 0.46±0.66;0.58±0.65; P<0.05and2.35±0.61;3.14±1.35;3.46±1.33;3.75±1.07P<0.05,respectively).Systolic blood pressure are significant difference in four groups. With diffused carotid artery plaque to predict three vessel coronary artery disease,the sensitivity and specificity is 70.37% and 96.77% respectively.Conclusions The patients with higher grade-level carotid artery plaque have high risk of cardiovascular diseases, and cerebrovascular events as wel as higher incidence of cardiovascular risk factors. Application of carotid artery ultrasound classification may be can predict coronary artery disease. 【Key words】carotid arteries ultrasound;cardiovascular risk factors;cardiovascular events;coronary atherosclerosis

Key words: carotid arteries ultrasound, cardiovascular risk factors, cardiovascular events, coronary atherosclerosis