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 Carotid Duplex

Make an Appointment

Make an Appointment

 614-293-7677; 888-293-7677

A carotid duplex (also known as a carotid ultrasound) is a test designed to measure the degree of blockage in your carotid arteries. Carotid arteries are located in the neck and supply blood to your brain. This test is used to detect a blockage or narrowing of the carotid arteries, which may lead to stroke.

Your physician may prescribe a carotid duplex if:

  • You have had a transient ischemic attack (TIA)
  • You have had a stroke
  • You need follow-up testing
  • Your physician hears an abnormal sound over the carotid neck arteries

Why Choose The Ohio State University Medical Center?

Accredited by the Intersocietal Commission for the Accreditation of Vascular Laboratories (ICAVL), The Ohio State University Medical Center Vascular Lab delivers the latest noninvasive tests for a wide range of vascular disorders as well as more advanced testing in the areas of arterial duplex imaging, visceral duplex, aortic duplex and aortic duplex following endovascular aneurysm repair. Our experienced sonographers assist Ohio State’s physicians in the diagnosis and treatment of the full spectrum of vascular diseases such as peripheral vascular disease, carotid artery disease and more complex disorders such as aneurysms.

Since The Ohio State University Medical Center is an academic medical center, our patients benefit from innovative research, a depth of medical expertise and the newest technologies and treatment techniques available.

What Is a Carotid Duplex?

Carotid duplex is a painless ultrasound procedure that shows how well blood is flowing through the carotid arteries. It works by sending sound waves into your body, which bounce back to create an image of the blood vessels and surrounding tissue in your neck. Carotid duplex can detect:

  • Plaque
  • Blood clots
  • Narrowing in the arteries (stenosis)
  • Other problems with blood flow in the carotid arteries  

What to Expect During Your Carotid Duplux

Preparing for Your Procedure

There are no special instructions for preparing for this test. It is helpful to wear a loose fitting shirt that does not have a high neck.

During Your Procedure

The test is performed in a vascular lab and the room is dark. The test is noninvasive and painless.

You are asked to lie on your back. Your head is supported to prevent it from moving.

A water-soluble gel is applied to your skin where a hand-held device called a transducer is placed. The technologist runs the transducer over the area of the carotid arteries in your neck.

The procedure takes about one hour to complete.

After Your Procedure

You can resume normal daily activities immediately following this procedure. A report of the test is sent to your physician, who will contact you to discuss your carotid duplex results.


Ohio State’s Ross Heart Hospital  

Knightsbridge Vascular Surgery and Vein Solutions™


To schedule your appointment, please call 614-293-ROSS or 888-293-ROSS.