Carotid ultrasound is a diagnostic process that is used to test carotid arteries in the neck. This diagnostic process involves the usage of sound waves to evaluate the flow of blood from carotid arteries to the brain. Carotid ultrasound is also known as Doppler ultrasound study and is done by the use of an ultrasound machine. This test detects the presence of plaques in carotid arteries and the presence of carotid artery stenosis. Carotid ultrasound is a noninvasive procedure. It is painless and harmless, and can be done in a clinical setup. High frequency sounds are passed through the carotid arteries and when they bounce back from the carotid artery, the computer collects data. This data is analyzed and evaluated. The images of carotid ultrasound are captured in real-time and the entire structure of carotid artery, and the passage of blood through it is clearly visualized. A carotid ultrasound is prescribed for people who exhibit carotid bruits. They are also done for those who are at an increased risk of having strokes including people with family history of heart disease and stroke, high cholesterol, and diabetes mellitus. People with diabetes are at a higher risk of developing a stroke as they have comorbidities of high cholesterol and blood vessel damage in diabetes leading to buildup of plaque.
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