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Cartoid Ultrasound

Carotid ultrasound is a painless and harmless test that uses high-frequency sound waves to create pictures of the insides of your carotid arteries.You have two common carotid arteries, one on each side of your neck. They each divide into internal and external carotid arteries.The internal carotid arteries supply oxygen-rich blood to your brain. The external carotid arteries supply oxygen-rich blood to your face, scalp, and neck.

Carotid ultrasound shows whether a waxy substance called plaque has built up in your carotid arteries. The buildup of plaque in the carotid arteries is called carotid artery disease.Over time, plaque can harden or rupture (break open). Hardened plaque narrows the carotid arteries and reduces the flow of oxygen-rich blood to the brain.If the plaque ruptures, a blood clot can form on its surface. A clot can mostly or completely block blood flow through a carotid artery, which can cause a stroke.

A piece of plaque or a blood clot also can break away from the wall of the carotid artery. The plaque or clot can travel through the bloodstream and get stuck in one of the brain's smaller arteries. This can block blood flow in the artery and cause a stroke.A standard carotid ultrasound shows the structure of your carotid arteries. Your carotid ultrasound test might include a Doppler ultrasound. Doppler ultrasound is a special test that shows the movement of blood through your blood vessels.Your doctor might need results from both types of ultrasound to fully assess whether you have a blood flow problem in your carotid arteries.

Who Needs Carotid Ultrasound?

A carotid ultrasound shows whether you have plaque buildup in your carotid arteries. Over time, plaque can harden or rupture (break open). This can reduce or block the flow of oxygen-rich blood to your brain and cause a stroke.

Our Doctor may recommend a carotid ultrasound if you:
Had a stroke or mini-stroke recently. During a mini-stroke, you may have some or all of the symptoms of a stroke. However, the symptoms usually go away on their own within 24 hours.
Have an abnormal sound called a carotid bruit (broo-E) in one of your carotid arteries. The doctor can hear a carotid bruit using a stethoscope. A bruit might suggest a partial blockage in your carotid artery, which could lead to a stroke.
Anyone has an increased risk of stroke, if you have diabetes and/or high blood pressure.

What To Expect Before Carotid Ultrasound?

Carotid ultrasound is a painless test. Typically, there is little to do in advance of the test. Your doctor will tell you how to prepare for your carotid ultrasound.

What To Expect After Carotid Ultrasound?

You usually can return to your normal activities as soon as the carotid ultrasound is over.