The diagnostic value of direct dual-source CT venography forlower extremity deep venous in deep venous thrombosis

YI Wen-fang; WU Zhi-feng; E Lin-ning; WU Shan

Journal of China Clinic Medical Imaging ›› 2015, Vol. 26 ›› Issue (7) : 518-522.

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The diagnostic value of direct dual-source CT venography forlower extremity deep venous in deep venous thrombosis

YI Wen-fang1, WU Zhi-feng2, E Lin-ning2, WU Shan2

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Abstract

Objective: To evaluate the diagnostic value of direct dual-source CT venography dual-energy examination for deep venous thrombosis of lower extremity(DVT). Methods: Thirty-four patient who were clinically suspected DVT received a direct DSCTV examination including both two lower extremities. The original image data and image reconstruction with multi-model after processing were obtained. All the patients were taken Doppler ultrasound(DUS) examination with both two lower extremities and inferior vena cava within one week before or after DSCTV, 19 cases were examined with lower extremity deep vein X-ray DSA. Results: Thirty-four patients with 254 abnormal branches were shown, consistency test is used to check the results of DSCTV and DUS. Kappa=0.76, P<0.05. DSA was the gold standard, the sensitivity, specificity of DVT detection by DSCTV were: 97.1%, 90%, respectively, the area under the ROC curve(AUC) was 0.935. Conclusions: Direct dual-source CT venography has an advantage of unique scan and post-processing technology for detecting lower extremity deep venous, so it has a high clinical value in the diagnosis of deep venous thrombosis of lower limb.

Key words

Venous thrombosis / Tomography / spiral computed / Angiography / digital subtraction

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YI Wen-fang;WU Zhi-feng;E Lin-ning;WU Shan. The diagnostic value of direct dual-source CT venography forlower extremity deep venous in deep venous thrombosis[J]. Journal of China Clinic Medical Imaging. 2015, 26(7): 518-522