What is the role of Doppler ultrasonography (US) in the workup of venous thromboembolism (VTE)?

Updated: Nov 05, 2020
  • Author: Vera A De Palo, MD, MBA, FCCP; Chief Editor: Vinod K Panchbhavi, MD, FACS  more...
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Answer

Results from Doppler ultrasonography (US) can indicate the presence of thrombus within a vein. A normal vein is free of internal echoes and can be compressed. In acute deep vein thrombosis (DVT), however, internal echoes are present and the vessel is not compressible.

Duplex scanning of the venous system uses Doppler flow assessment combined with B-mode US. The advantage of color flow Doppler US is the ability to determine motion and the direction of flow.


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