Test: Doppler Ultrasound Scanning

Doppler ultrasound scanning is an imaging technique commonly used to measure the blood flow through a blood vessel in circulatory disorders such as thrombosis and embolism. It may also be used to measure blood pressure in the limbs. The technique produces an image of the blood flow through the vessel so that narrowing and blockages of the vessel can be detected. A routine Doppler ultrasound scan can take up to 20 minutes to perform and is completely painless and safe.

Having a scan

Gel is placed on the skin and a transducer is moved over the area to be examined. The result is displayed on a monitor.


Doppler scan

This ultrasound image shows blood flow through vessels in the leg and confirms a blockage in the artery. Doppler ultrasound scans allow the precise position and severity of a blockage to be determined.

From the 2010 revision of the Complete Home Medical Guide © Dorling Kindersley Limited.

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