Carotid
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 circulating in the bloodstream. Early diagnosis and treatment of a narrowed carotid artery can decrease stroke risk.
Your doctor will recommend a carotid ultrasound if you have transient ischemic attacks (TIAs) or certain types of stroke and may recommend a carotid ultrasound if you have medical conditions that increase the risk of stroke, including:
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High blood pressure
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Diabetes
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High cholesterol
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Family history of stroke or heart disease
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Recent transient ischemic attack (TIA) or stroke
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Abnormal sound in carotid arteries (bruit), detected by your doctor using a stethoscope
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Coronary artery disease