The carotid arteries include the common carotid artery, internal carotid artery, and external carotid artery, with normal diameters of 6 to 7.5 mm, 5 to 6 mm, and 4.5 to 5.5 mm, respectively.
Since the carotid artery is one of the main arteries supplying blood to the brain, when the carotid artery has endothelial thickening, plaque and lumen stenosis, the diameter of the carotid artery can be reduced, resulting in a decrease in the perfusion of the brain tissue, which can lead to cerebral ischemia, cerebral infarction and other serious conditions.
Regular carotid vascular color Doppler ultrasound can monitor the diameter of the carotid artery and its intima-media thickness, which can lead to early detection, prevention and treatment of cardiovascular and cerebrovascular events.
Carotid artery diameter is how many millimeters there are individual differences, if you must clarify the patient’s carotid artery diameter need to improve the relevant examination, it is recommended to go to the hospital.