RESUMEN
Objective@#To investigate the clinical value of transvaginal three-dimensional ultrasonography in the differential diagnosis of benign and malignant endometrial diseases after menopause.@*Methods@#From April 2015 to April 2017, the imaging data of transvaginal three-dimensional ultrasonography of 184 patients with benign and malignant breast tumors in the Second People's Hospital of Yuhang District were retrospectively analyzed.The peak systolic flow velocity, resistance index, peak systolic velocity, intimal arterial resistance index and blood flow display rate of uterine artery of benign and malignant endometrial diseases were compared.@*Results@#The accuracy, sensitivity and specificity of transvaginal three-dimensional ultrasonography in the diagnosis of endometrial diseases were 91.30%(168/184), 92.00%(46/50), 91.04%(122/134), respectively.There were no statistically significant differences in the peak systolic flow velocity, resistance index, peak systolic velocity of patients with benign and malignant endometrial diseases by transvaginal three-dimensional ultrasonography(t=1.17, 0.88, 0.51, all P>0.05). The intimal arterial resistance index of patients with malignant endometrial diseases by transvaginal three-dimensional ultrasonography was significantly lower than patients with benign endometrial diseases(t=2.59, P<0.05). The blood flow display rates of uterine artery of patients with malignant endometrial diseases by transvaginal three-dimensional ultrasonography were 19.40%(26/134), 92.00%(46/50). The blood flow display rate of uterine artery of patients with malignant endometrial diseases by transvaginal three-dimensional ultrasonography was significantly higher than patients with benign endometrial diseases(χ2=7.26, P<0.05).@*Conclusion@#Transvaginal three-dimensional ultrasonography in the differential diagnosis of benign and malignant endometrial diseases after menopause has higher accuracy, sensitivity and specificity.