O-34: Assessment of Endometrial Volume by Four-Dimensional Ultrasound As A Predictor of Pregnancy Outcome in IVF Patient Who Refer to Royan Institute

Background: To investigate whether endometrial volume on the day of HCG (human chorionic gonadotropin) administration is a predictor of ART (assisted reproductive outcome) outcome Materials and Methods: Two hundred and seven patients in ART cycle were included in this prospective study; In order to evaluate endometrial volume and its relationship to ART outcome. Endometrial volume obtained from the sagittal, coronal and transverse plane of the uterus and it was evaluated in multiplaner 3D and multi-slice view mode. Results: The endometrial volume was divided to 3 group <2cc (Group1), 2-4.5cc (Group2), >4.5cc (Group3). Positive pregnancy in group 1, 2 and 3 were 23.5%, 34.8% and 48.8% respectively. Conclusion: There is no statistical significant relationship between endometrial volume on the day of hCG administration and predicting pregnancy outcome in ART cycle (According to chi-square test which was obtained by the data).However comparing 3 groups it has shown the better pregnancy rate in group 3(›4.5cc).