artery ultrasound explained

Overview

An artery ultrasound is a safe, painless test that uses sound waves to create pictures of your arteries. It helps doctors see how well blood flows through your arteries and check for blockages or narrowing.

Yes, artery ultrasounds are routine tests used by doctors to evaluate blood flow, especially in people with risk factors like high blood pressure, diabetes, or smoking.

It is most often done in adults over 50, people with diabetes, high cholesterol, high blood pressure, or those who smoke. It can also be used in children for certain inherited conditions.

Symptoms

Common symptoms

• Leg pain or cramping when walking (claudication)
• Numbness or coldness in a leg or arm
• Swelling in a leg or foot
• Slow-healing sores on your feet or legs
• Weak or absent pulse in an arm or leg

Symptoms in children

• A child may have an artery ultrasound if they were born with a heart defect or have an unexplained high blood pressure in one arm
• Signs of poor growth or fatigue during feeding

Symptoms in older adults

• Leg pain that gets better with rest
• Non-healing wounds on toes or heels
• Sudden dizziness or vision changes (if carotid artery is affected)

Causes

Main causes

• Atherosclerosis – buildup of fatty deposits (plaque) in the artery walls
• Blood clots that block blood flow
• Inflammation of artery walls (vasculitis)

Risk factors

• Smoking or using tobacco
• High blood pressure
• High cholesterol
• Diabetes
• Being overweight or obese
• Not being physically active
• A family history of artery disease
• Age (risk increases with age)

When to see a doctor

See a doctor urgently if:

• Sudden, severe pain in a leg or arm with coldness and loss of pulse – call your local emergency number immediately
• Chest pain or stroke symptoms

Book a routine appointment if:

• You have leg pain when walking that goes away with rest
• You have a wound on your leg or foot that is slow to heal
• You have risk factors like diabetes, high blood pressure, or smoking and want to check your blood vessels

Diagnosis

An artery ultrasound is performed by a trained sonographer. You will lie on a bed, and a small handheld device (probe) with gel on it will be moved over the skin above the artery being checked. The sound waves create images of the artery and measure blood flow.

Tests that may be done

• Duplex ultrasound – combines pictures of the artery with Doppler sound waves to show blood flow speed and direction
• Color Doppler – shows blood flow in colour on the screen
• Ankle-brachial index (ABI) – sometimes done before ultrasound to compare blood pressure in your arm and ankle

What to expect at your appointment

You will be asked to wear loose clothing and may need to remove trousers or socks. The test is painless and takes about 30–60 minutes. There is no special preparation needed, though you may be told not to eat for a few hours if the belly arteries are being checked. After the test, you can go back to normal activities.

Treatment

If the artery ultrasound shows a problem, treatment focuses on improving blood flow and reducing your risk of serious events like a heart attack or stroke. Your doctor will suggest lifestyle changes and may recommend medications or procedures.

Self-care at home

• Follow a heart-healthy diet low in saturated fat, salt, and sugar
• Aim for at least 30 minutes of moderate exercise on most days (like brisk walking)
• If you smoke, get support to quit – this is one of the most important steps
• Manage your blood pressure, cholesterol, and diabetes as your doctor advises

Medical treatments

Doctors may prescribe medicines to lower blood pressure, reduce cholesterol, prevent blood clots, or control blood sugar. These are usually taken long-term. Always take them exactly as prescribed and talk to your doctor before stopping any medication.

When is surgery considered?

If an artery is severely narrowed or blocked, a procedure may be needed to open it (angioplasty, often with a small mesh tube called a stent) or to bypass the blockage using a healthy blood vessel. Your specialist will discuss if this is right for you.

Living with this condition

Most people with artery disease can live full lives by making heart-healthy choices and following up regularly with their doctor. Pay attention to any changes in your symptoms and report them promptly.

Lifestyle tips

• Check your feet daily for cuts or sores if you have poor circulation in your legs
• Wear comfortable shoes and avoid going barefoot
• Stay active but rest when your legs hurt
• Keep all medical appointments and take your medicines as directed

Diet and exercise

A diet rich in fruits, vegetables, whole grains, and lean proteins helps. Reduce saturated fats and processed foods. Walking is excellent, but start slowly and build up – stop if you have pain and rest before continuing. A supervised exercise programme may be available through your doctor.

Mental health and emotional wellbeing

Living with a chronic condition can be stressful. It's normal to feel anxious or down. Talk to your doctor about how you're feeling – they can connect you with support. Staying positive and focused on what you can do, rather than what you can't, helps many people.

Prevention

You can reduce your risk of artery disease by adopting a healthy lifestyle early on. While you cannot change your age or family history, you can control many other factors.

Screening programmes

Your doctor may recommend a one-time screening ultrasound if you have risk factors like a strong family history or if you have symptoms. Routine screening is not needed for everyone – talk to your doctor about your personal risk.

Complications

If left untreated

• Worsening pain and difficulty walking
• Non-healing foot or leg wounds that may lead to infection
• Tissue death (gangrene) that may require amputation
• Heart attack or stroke if the arteries to the heart or brain are affected

Long-term outlook

With early detection and proper management, most people with artery disease can prevent serious complications and maintain a good quality of life. Treatment and lifestyle changes can slow or even reverse some buildup of plaque. Stay in close contact with your doctor and follow your treatment plan – this gives you the best chance for a positive outcome.

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