Coastal Cardiology Association Corpus Christi Texas

Carotid Ultrasound

The primary purpose of a carotid ultrasound is to screen for a narrowing of the carotid arteries that indicates an increased risk of stroke. Narrowing is usually caused by plaques — a buildup of fats, cholesterol, calcium and other substances that circulate in the bloodstream. Early detection of narrowing of the carotid arteries enables your doctor to begin treatments that improve blood flow to the brain and decrease your risk of stroke.
Other uses of carotid ultrasound: your doctor also may order a carotid ultrasound to:

Evaluate the structure and function of the artery after surgery to remove plaques (carotid endarterectomy)

Evaluate the placement and treatment effect of a stent, a mesh tube used to improve blood flow through an artery and support a weakened artery

Detect other abnormalities in the structure of a carotid artery that may disrupt blood flow

You can take the following steps to prepare for your appointment: Wear a comfortable shirt with no turtleneck and don’t wear a necklace. During the procedure you'll likely lie down on your back during the procedure. The ultrasound technician (sonographer) may gently adjust the position of your head to improve access to the side of your neck. The sonographer will apply a warm gel to your skin above the site of each carotid artery. The gel helps eliminate the formation of air pockets between your skin and the transducer. The sonographer then gently presses the transducer against the side of your neck in order for the instrument to send and receive sound waves. You shouldn't feel any discomfort during the procedure. If you do, tell the sonographer. A carotid ultrasound usually takes about 15 to 30 minutes.