[Evaluation of transvaginal ultrasonography-color Doppler energy imaging in surveillance of gynecologic malignant tumors after operation].

BACKGROUND & OBJECTIVE: Transvaginal ultrasonography (TVS) and color Doppler energy imaging (CDE) have been already applied in ultrasonography diagnosis extensively, but articles about the methods in surveillance of gynecologic malignant tumors after operation are few. The objective of this study was to evaluate TVS-CDE in surveillance of gynecologic malignant tumors after operation. METHODS: Fifty-four cases of gynecologic malignant tumors after operation, which were doubted as recurrent malignant tumors in clinic, were scanned with transabdominal ultrasonography (TAS), TVS, and TVS-CDE. The results were compared with that of pathology. Then their sensitivity, specificity,and accuracy were calculated, and the accuracy was compared by Chi-square test. RESULTS: Forty-three cases were diagnosed as malignant tumors by TAS; Forty-six cases were diagnosed as malignant tumors by TVS,and the positions, sizes, characteristics of the recurrent malignant tumors could be depicted visually. Forty-seven cases were diagnosed as malignant tumors by TVS-CDE; Not only the blood flow characteristics of masses,but also more diagnostic information than TVS were provided. The sensitivity was 81.3%, 91.7%, and 95.9%, respectively; the specificity was 33.3%,66.7%, and 83.3%, respectively; the accuracy was 75.9%, 88.9%, and 94.4%, respectively. Obviously, the accuracy of both TVS and TVS-CDE was higher than that of TAS(P< 0.05), but the accuracy of TVS and TVS-CDE was similar (P >0.05). CONCLUSION: TVS-CDE is helpful in the diagnosis of gynecologic malignant masses. It will be more effective in surveillance of recurrent gynecologic malignant tumors if it combined with CDE.