Loss of compressibility by ultrasonography in deep venous thrombosis of the lower extremities: a prospective evaluation.
Keywords:
deep vein thrombosis, Ultrasound, venous compressibilityAbstract
Compressibility of the deep veins of the lower extremities by real time ultrasonography, in the cases suspected to have deep vein thrombosis was analyzed, using contrast venography as the standard in the diagnosis of the deep venous thrombosis. A prospective study was performed in 25 cases. There was no false positive cases. Thirteen contrast venography diagnosed DVT showed 11 positive ultrasonography. The sensitivity was 87% and the specificity was 100%. The false negative studies should be avoidable if more careful examination was performed. The diagnosis of DVT by determination of the loss of compressibility by ultrasonography was very simple and accurate. With careful examination, it should obviate the need to performed more traumatic contrast venography, at least in the ultrasonographic DVT positive cases.
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