Role of 3D and 3D Power Doppler to Assess Endometrial Receptivity in IUI Cycles

Background: The assessment of the endometrial receptivity at the time of human chorionic gonadotrophin (hCG) is one of the key factors for success of all ART procedures. Aim: To assess, if 3D and 3D power Doppler assessment of endometrial receptivity before giving hCG, helps improving pregnancy rates in superovulation with IUI cycles. Settings and Design: A prospective randomized study of 2500 cycles of IUI was done over a period of twelve months for pre-hCG endometrial assessment. Method: Endometrial assessment was done on Voluson 730 Expert, (Wipro GE) using transvaginal multifrequency volume probe 5 to 9 MHz. When follicles and endometrium were considered mature by 2D US and color Doppler, 3D and 3D power Doppler assessment of the endometrium was done before giving hCG. These values were evaluated for conception and nonconception groups. Results: Conception rates were higher, when endometrial volume was between 3 and 7 cc. In our study, we have found endometrial FI > 20 and endometrial VFI > 40 as most optimum. Conclusions: 3D ultrasound is accurate for volume assessment of endometrium. 3D and 3D PD, when used with 2D US and color Doppler for pre-hCG endometrial assessment, it would definitely improve implantation rates in IUI cycles.