Carotid Doppler Study

Provides a measure of blockage in the carotid artery, which is the main blood vessel leading to the head and brain. Carotid artery stenosis is a narrowing of the carotid artery. This study helps identify individuals at risk of stroke from stenosis.

Stroke is the third leading cause of death in the United States, with 13 percent caused by carotid artery stenosis (narrowing of the carotid arteries). Stroke is the leading cause of severe, long-term disability. Every 45 seconds someone in America has a stroke. According to the National Stroke Association, this year 750,000 people will have a stroke. A stroke is the slowing or disruption of blood to the brain, often caused by plaque build up or blood clots.

Procedure: This screening is completed with the ultrasound unit. An individual lies on a table. An acoustic gel is placed on the neck over the carotid arteries. A small transducer instrument is moved painlessly around the neck. The ultrasound measures the carotid arteries and provides a visual image of blockage or stenosis, if one is present.

Major risk factors for stroke: age (greater than 60), sex (male), high blood pressure (hypertension), tobacco use, coronary artery disease, atrial fibrillation, diabetes, mini strokes (transient ischemic attacks), and high cholesterol.

Benefits of early detection:

• You may begin lifestyle changes that can reduce risk.
• Your physician may provide medical intervention to reduce risk, based on need.
• You can learn the signs and symptoms of stroke to decrease mortality.

You and your doctor can determine if this screening is appropriate for you based on your health history and risks. The U.S. Task Force of Preventive Services does not recommend for or against this screening. Screening is not recommended for individuals who cannot undergo major surgery to repair findings, such as those with severe cardiac or pulmonary disease, or asymptomatic individuals who have a life expectancy of less than five years.