How is ultrasonography used to diagnose deep venous thrombosis (DVT) caused by venous insufficiency?

Updated: Sep 25, 2020
  • Author: Robert Weiss, MD; Chief Editor: William D James, MD  more...
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In the diagnosis of deep venous thrombosis (DVT), ultrasonography has been shown to be superior to contrast venography, and it has now replaced venography in this setting. Duplex ultrasonography is the initial diagnostic imaging modality of choice in patients with suspected DVT.

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