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- W1995208791 abstract "Purpose: to evaluate the accuracy of triplex ultrasound (TUS) compared with venography as a screening test for deep venous thrombosis (DVT), and to evaluate interobserver variation in the interpretation of the venographic studies. Material and Methods: A total of 133 postoperative hip fracture patients, asymptomatic of DVT, were prospectively examined with TUS and venography. All venograms were reviewed blindly and in case of disagreement a consensus was arrived at. Results: the incidence of DVT was 20%, with isolated calf vein thrombi in 63% of the cases. There were 7 false-negative and one false-positive result/s at TUS, with a sensitivity of 74%, specificity of 99% and accuracy of 97%. the kappa values ranged from 0.58 to 0.82. the false-negative results were all caused by missed calf vein thrombi in technically inadequate examinations. at sonography 2% of vein segments were noninterpretable, compared to 29% at venography. Conclusion: Venous US is less sensitive as a test for DVT in this study of asymptomatic patients than in earlier studies on symptomatic patients. Still, sonographic screening of high-risk patients would be both effective and cost effective. Fresh thrombi may cause a false-negative compression test." @default.
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- W1995208791 date "1997-03-01" @default.
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- W1995208791 title "Triplex us in the diagnosis of asymptomatic deep venous thrombosis" @default.
- W1995208791 doi "https://doi.org/10.1080/02841859709172073" @default.
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