关键词: 下肢深静脉血栓, 彩色多普勒超声, 敏感性, 特异性, 准确率

Abstract: Objective To investigate the sensitivity, specificity and accuracy of color Doppler ultrasound in the diagnosis of lower limb deep vein thrombosis. Methods The clinical data of 88 patients with lower limb disorders who had admitted to our hospital from January 2018 to January 2019 were retrospectively analyzed. All the patients were diagnosed by color Doppler ultrasound. The sensitivity, specificity and accuracy of color Doppler ultrasound in the diagnosis of lower limb deep vein thrombosis were evaluated by using digital subtraction angiography as the gold standard. Results Angiography showed that 60 cases of deep venous thrombosis and 28 cases of non-deep venous thrombosis were found in 88 patients with lower extremity disorders. According to the diagnosis of color Doppler ultrasound, 58 cases were lower extremity deep vein thrombosis patients and 30 cases were non-lower limb deep vein thrombosis patients. The accuracy rate was 95.45%, the sensitivity was 95.00%, and the specificity was 96.43%. The accuracy rate of color Doppler venous examination and angiography was 95.00% There was no significant difference in the results of shadow vein examination (χ² = 2.274, P = 0.132). Conclusion Color Doppler ultrasound has good diagnostic efficacy in diagnosing patients with deep venous thrombosis of lower limbs, which is beneficial to provide reference for clinical diagnosis and treatment.

Key words: lower limb deep vein thrombosis, color Doppler ultrasound, sensitivity, specificity, accuracy