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- W2364854027 abstract "Objective To compare the detection rate and diagnostic accuracy of the incompetent perforating veins between color Doppler ultrasonography and phlebography in patients with venous ulcers of lower limbs.Methods During the period from Sep.2008 to Aug.2011,a total of 35 cases with venous ulcers in lower limbs were admitted to authors' hospital.Both Doppler ultrasonography and phlebography were performed in all the patients.The detection rate and diagnostic accuracy of the incompetent perforating veins were recorded and the results were compared between the two methods.Results Of 35 cases with venous ulcers(44 diseased lower limbs),a total of 238 perforating veins were demonstrated by phlebography(n = 233) or by Doppler ultrasonography(n = 236),with P = 1.0.Phlebography detected 100 incompetent perforating veins(42.0%),while Doppler ultrasonography revealed 34(14.4%) or 111(48.0%) incompetent perforating veins when reflux time of 0.5 second or 0.35 second was taken as the standard critical point respectively.Most perforating veins and incompetent perforating veins were located at the lower part of the leg.Taking phlebography findings as reference,the specificity of 0.5 second and 0.35 second reflux time was 100% and 83.2% respectively,and the sensitivity of 0.5 second and 0.35 second reflux time was 34% and 89% respectively,and the Kappa value was 0.37 and 0.71 respectively.When combination use of 0.35 second reflux time and 3 mm diameter was employed as standard critical point,the specificity,sensitivity and Kappa value were 95.4%,82% and 0.79,respectively.Conclusion For the evaluation of the incompetence of perforating veins in patients with venous ulcers of lower limbs,Doppler ultrasonography carries higher detection rate of incompetent perforating veins,and is in accord with phlebography findings.The diagnostic accuracy of incompetent perforating veins will be further improved if combination use of 0.35 second reflux time and 3 mm diameter is employed as standard critical point." @default.
- W2364854027 created "2016-06-24" @default.
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- W2364854027 date "2012-01-01" @default.
- W2364854027 modified "2023-09-24" @default.
- W2364854027 title "Evaluation of the incompetence of perforating veins in patients with venous ulcers of lower limbs: a comparative study between color Doppler ultrasonography and phlebography" @default.
- W2364854027 hasPublicationYear "2012" @default.
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