Key result
Colour duplex sonography for detecting deep vein thrombosis in axial and calf veins demonstrated 100% specificity and 79% sensitivity in patients with clinically suspected DVT.
Why the study?
Does colour duplex sonography accurately detect thrombus in patients with clinically suspected deep vein thrombosis?
Does colour duplex sonography accurately detect thrombus in patients with clinically suspected deep vein thrombosis?
Colour duplex sonography demonstrates perfect specificity but moderate sensitivity for detecting deep vein thrombosis in axial and calf veins.
Answers are grounded in this paper and cite their sources.
May confirm DVT when positive but cannot reliably exclude; cross-sectional data leaves open prospective validation.
Results of using colour duplex sonography in 58 patients (60 limbs) with clinically suspected deep vein thrombosis No No Location of thrombus false positive Specificity (%) false negative Sensitivity (%) Axial and calf veins 0 100 6 79 Axial vein 0
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Wright et al. (1991) studied this question. Colour duplex sonography for detecting deep vein thrombosis in axial and calf veins demonstrated 100% specificity and 79% sensitivity in patients with clinically suspected DVT.
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