A carotid ultrasound is performed to test for narrowed carotid arteries, which increase the risk of stroke. Carotid arteries are usually narrowed by a buildup of plaque — made up of fat, cholesterol, calcium and other substances that circulate in the bloodstream.
The Carotid ultrasound was performed in the doctors office.
A carotid duplex scan is a simple and painless test that combines two types of ultrasound to look for blockages in your carotid arteries. An ultrasound is a type of scan that uses sound waves to produce a picture of the inside of your body. Your carotid arteries are located along both sides of your neck. Blocked carotid arteries are a major risk factor for stroke.
The two types of ultrasound used in a carotid duplex scan are conventional ultrasound and Doppler ultrasound. Conventional, or B-mode, ultrasound uses sound waves that bounce off blood vessels to provide a picture of the structure of your blood vessel. Doppler ultrasound uses sound waves that track moving objects. This allows your doctor to see how your blood is moving through your blood vessels.