At London Private Ultrasound, we offer the Renal Artery Stenosis Doppler Ultrasound Scan, a non-invasive diagnostic imaging technique used to assess blood flow in the renal arteries, vital in supplying blood to the kidneys. This procedure utilizes high-frequency sound waves (ultrasound) to create real-time images and determine the velocity of blood flow within the renal arteries.

Doppler ultrasound technology empowers our skilled sonographers to analyze blood flow patterns, including any areas of narrowing or stenosis in the renal arteries. Renal artery stenosis is characterized by a significant constriction in one or both renal arteries, typically caused by the accumulation of plaque or atherosclerosis. During the Doppler ultrasound scan, our sonographers conduct a thorough examination of the renal arteries to identify signs of stenosis, assess blood flow velocity, and detect any abnormalities or blockages. This test is considered safe, painless, and does not involve radiation exposure.

Why This Scan Matters

Renal Artery Stenosis often develops without obvious symptoms. However, if left undetected, it can lead to:

• Resistant high blood pressure

• Progressive kidney damage

• Risk of cardiovascular complications

A Doppler ultrasound is a non-invasive, safe, and accurate method of assessing blood flow velocity through the renal arteries — helping identify narrowing or blockages that may be impairing kidney function.

What This Scan Includes:

• Comprehensive Doppler ultrasound of both renal arteries

• Spectral and colour Doppler assessment of blood flow

• Evaluation of renal size, symmetry, and resistive indices

• Performed by expert clinical vascular scientists with decades of experience

• Same-day verbal results and full diagnostic report within 24 hours

Who Should Have This Scan?

This scan is recommended for individuals who:

• Have high blood pressure that is difficult to control

• Experience a sudden rise in blood pressure after the age of 50

• Have reduced kidney function or unexplained kidney shrinkage

• Are diagnosed with atherosclerosis or peripheral artery disease

• Show signs of fluid retention, swelling or shortness of breath

What to Expect

• The scan is completely non-invasive and takes around 30 minutes

• You’ll lie comfortably while the sonographer applies gel and moves the probe across your abdomen to visualise the renal arteries

• Our vascular experts will assess both structural and flow characteristics to deliver a complete diagnostic picture

Why Choose London Private Ultrasound?

✅ UK’s top vascular scientists performing your scan
✅ Fast access — same-day or next-day appointments
✅ State-of-the-art Doppler imaging equipment
✅ Calm, modern, patient-first clinical environment
✅ No GP referral required