What Is an Arterial / Venous Ultrasound?
An arterial and venous ultrasound is a painless imaging test that uses sound waves to evaluate blood flow in your arteries and veins.
It helps your doctor detect blockages, narrowing, or clots that may be affecting circulation in the limbs.
At TTLim Heart Clinic, this test is commonly performed to assess conditions such as Peripheral Artery Disease (PAD), Deep Venous Thrombosis (DVT), or Chronic Venous Insufficiency (CVI) — allowing for early and accurate diagnosis without the need for injections or radiation.
Why Is This Test Important?
Healthy blood circulation is essential for supplying oxygen and nutrients to every part of the body. When an artery or vein is narrowed or blocked, it can cause leg pain, swelling, or even tissue damage.
An arterial / venous ultrasound helps:
- Detect poor circulation or vein valve problems early
- Identify blood clots or plaque build-up
- Monitor recovery after vascular procedures such as angioplasty or stent placement
- Prevent serious complications like ulcers, gangrene, or pulmonary embolism
Early detection gives your doctor the opportunity to treat circulation problems before they become severe.
What’s the Difference Between an Arterial and a Venous Ultrasound?
| Type of Ultrasound | What It Checks | Commonly Used To Diagnose |
|---|---|---|
|
Arterial Ultrasound |
Blood flow from the heart to the limbs
|
Peripheral Artery Disease (PAD), blocked or narrowed arteries |
|
Venous Ultrasound |
Blood flow back to the heart from the limbs |
Deep Venous Thrombosis (DVT), varicose veins, venous reflux |
Both are often performed together to provide a complete picture of your vascular health.
How Is an Arterial / Venous Ultrasound Performed?
The procedure is safe, quick, and non-invasive.
- You will lie comfortably on an examination bed.
- A small amount of gel is applied to your skin.
- The technologist moves a handheld device (called a transducer) over your legs or arms.
- The device sends and receives sound waves that create live images of your blood vessels on a monitor.
The test usually takes 30–45 minutes and does not require any special preparation. You can resume normal activities immediately afterward.
What Do the Results Mean?
Your cardiologist will review the ultrasound images to assess:
- Blood flow speed and direction
- Presence of narrowing or blockages (plaque or clot)
- Valve function in veins
- Signs of reflux or pooling in the lower limbs
If an abnormality is detected, your doctor may recommend further evaluation, medication, or procedures such as angioplasty, stenting, or compression therapy, depending on the cause.
Who Should Have an Arterial / Venous Ultrasound?
You may be advised to undergo this test if you:
- Experience leg pain, cramping, or swelling
- Have cold, pale, or discoloured feet
- Notice visible or bulging veins
- Have a history of blood clots, diabetes, or smoking
- Are recovering from a vascular procedure
Screening is especially important for individuals over 50 or those with cardiovascular risk factors.
Is the Test Safe?
Yes. The test uses sound waves, not radiation. It is completely safe for adults, older patients, and even pregnant individuals when indicated.
Frequently Asked Questions (FAQs)
1. Is an arterial / venous ultrasound painful? No. The procedure is completely non-invasive and painless.
2. How should I prepare for the test? No fasting is needed. Wear loose clothing so your legs or arms can be easily examined.
3. How long does it take to get results? Your doctor can usually review and discuss your results shortly after the test.
4. Can this test detect blood clots? Yes. A venous ultrasound is the most common and accurate way to diagnose deep vein thrombosis (DVT).
5. How often should I repeat this test? If you have ongoing vascular symptoms or risk factors, your cardiologist may recommend repeat screening every 1–2 years.
