Diagnostics·Diagnostics
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A carotid duplex ultrasound is a safe, painless test that uses sound waves to create pictures of the carotid arteries in your neck. These arteries carry blood to your brain. The test checks for narrowing or blockages that could increase your risk of a stroke.
Key facts
Yes, carotid duplex ultrasound is a very common test for people who have symptoms of a transient ischaemic attack (TIA) or stroke, or who have risk factors for carotid artery disease.
It is typically used for adults, especially those over 50, smokers, people with high blood pressure, diabetes, or high cholesterol, and anyone who has had a stroke or TIA.
A carotid duplex ultrasound is performed by a specially trained sonographer or vascular technician. They apply a cool gel to your neck and gently move a small handheld device (transducer) over the skin. The sound waves create images on a screen. The test shows if your carotid arteries are narrowed and how much blood can flow through them.
You will lie on your back with your head slightly turned. The sonographer will press the transducer lightly on your neck. There is no pain, only a slight pressure. You may hear whooshing sounds from the machine. The whole appointment usually takes 30 to 60 minutes. Afterward, you can go back to your normal activities immediately.
Treatment after a carotid duplex ultrasound depends on the results. If the arteries are only slightly narrowed, lifestyle changes and medication may be enough. If there is severe narrowing, more active treatments may be needed to prevent a stroke.
If you have carotid artery disease, you will need to manage your risk factors for the rest of your life. This means taking medications as prescribed, making healthy lifestyle choices, and attending regular check‑ups. Most people can live a full, active life.
Aim for a diet low in saturated fat, salt, and sugar. Include plenty of fibre, vegetables, and fish. Regular physical activity, such as brisk walking, swimming, or cycling, helps keep your blood vessels healthy. Always check with your doctor before starting a new exercise program.
You cannot always prevent carotid artery disease, but you can lower your risk by not smoking, eating well, staying active, and keeping your blood pressure, cholesterol, and diabetes under control.
Routine screening for carotid artery disease is not recommended for everyone. However, your doctor may suggest a carotid duplex ultrasound if you have risk factors or have had a TIA or stroke.
With proper treatment and lifestyle changes, the outlook is very good. Most people with carotid artery disease can prevent a stroke and continue to live a normal, healthy life. The earlier the problem is found, the better the chances of avoiding serious complications.
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Always verify with your doctor
Health guidelines vary by country and region. The information in this article is based on international clinical guidelines but may not reflect the specific guidelines, medications, or practices in your country. Always discuss your health concerns with your own doctor or healthcare provider, and refer to your local national health guidelines where available.
Important notice This information is for educational purposes only. It does not replace professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider about your specific situation. If you are experiencing a medical emergency, call your local emergency services immediately.
This article is educational and is prepared with reference to recognized health information and clinical guidance sources where available. Specific source links may vary by topic.
Last updated: July 8, 2026
Educational note: This information is for education only and is not a diagnosis.
Use it to support, not replace, advice from a licensed clinician.
If symptoms are severe, worsening, or urgent, call your local emergency number or seek emergency care.
Your doctor may prescribe medicines to lower blood pressure, reduce cholesterol, or prevent blood clots. It is important to take them exactly as directed. Never change or stop your medicines without talking to your doctor.
If the narrowing is severe (usually greater than 70‑80%) and you have had symptoms, your doctor may recommend a procedure to open the artery. Options include carotid endarterectomy (surgery to remove the plaque) or carotid artery stenting (placing a small mesh tube to keep the artery open). Your doctor will explain the risks and benefits for your specific situation.
Being told you have narrowed arteries in your neck can be worrying. It is normal to feel anxious or down. Talk to your healthcare team about your feelings – they can offer support or refer you to a counsellor. Remember that treatment is effective and you are taking steps to protect your brain.