Three-dimensional Power Doppler in the Diagnosis of Endometrial Lesions in Patients With Postmenopausal Bleeding

100 women suffering post-menopausal bleeding will be included in the study. All the participants will undergo 3D Transvaginal Ultrasound to assess the endometrium and myometrium (for the presence of any focal lesions e.g. polypi) followed by 3D Power Doppler ultrasound assessment of the vascular indices: vascularization index (VI), flow index (FI) and vascularization-flow index (VFI) and endometrial volumes. The results of the ultrasound and Doppler indices will be correlated to the histopathological examination of specimens collected following fractional curettage or hysterectomy.