A renal Doppler ultrasound is a non-invasive imaging test that uses sound waves to evaluate blood flow in the renal arteries and veins. It helps diagnose conditions such as renal artery stenosis, blood clots, or impaired kidney circulation, which can contribute to high blood pressure and kidney disease.
Procedure Breakdown:
- Preparation:
- Patients may be advised to fast for 6–8 hours before the test to reduce interference from intestinal gas.
- Loose-fitting clothing is recommended for comfort during the procedure.
- Gel Application:
- A water-based gel is applied to the abdomen or lower back to enhance sound wave transmission.
- Ultrasound Imaging:
- A handheld transducer (ultrasound probe) is moved over the abdomen or flanks.
- Standard ultrasound creates images of the kidney structures, while Doppler ultrasound evaluates blood flow patterns.
- Doppler Blood Flow Analysis:
- The Doppler mode measures the speed and direction of blood flow in the renal arteries and veins.
- Color Doppler may be used to visually differentiate blood flow patterns, identifying blockages or narrowing.
- Completion & Results:
- The gel is wiped off, and the procedure is completed within 30–60 minutes.
- A radiologist analyzes the images, and results are sent to the referring doctor to determine if further tests or treatments are needed.
Renal Doppler ultrasound is a safe, radiation-free diagnostic tool that plays a crucial role in detecting kidney-related vascular conditions early.
