The carotid artery is not smooth, the coronary artery may also have atherosclerosis, specific whether there is no stenosis occlusion, need to do coronary angiography. Carotid artery is not smooth that the carotid artery lining has atherosclerosis, lipid deposition in the blood vessels, causing the lining is not smooth, is the early manifestation of atherosclerosis. The arteries throughout the body are connected, and other blood vessels within the body may already have atherosclerosis, and the coronary arteries have atherosclerosis as well. By doing carotid ultrasound is not able to fully determine the degree of coronary artery stenosis occlusion, in order to understand the coronary artery stenosis, need to go to the hospital to do coronary angiography to determine.