MedlinePlus Medical Encyclopedia: Doppler ultrasonography of an extremity

Medical Encyclopedia

Doppler ultrasonography of an extremity

Doppler ultrasonography examines the blood flow in the major arteries and veins in the arms and legs with the use of ultrasound (high-frequency sound waves that echo off the body). It may help diagnose a blood clot, venous insufficiency, arterial occlusion (closing), abnormalities in arterial blood flow caused by a narrowing, or trauma to the arteries.

Update Date: 7/10/2008

Updated by: Benjamin Taragin M.D. Department of Radiology, Montefiore Medical Center Bronx, N.Y. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.

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