Yücel, NeşeYücel, Oğuz2021-06-232021-06-2319981121-8339https://hdl.handle.net/20.500.12491/4634https://www.scopus.com/inward/record.uri?eid=2-s2.0-0031965707&partnerID=40&md5=eeacce801cc46ed08e0d8d46cd747443Objective: Color Doppler sonography was used to demonstrate physiology of ovarian haemodynamics during the menstrual cycle. Methods: Doppler measurements of ovarian arteries were performed in 20 cases with regular menstrual cycles in age ranging from 20 to 22 in cycle days 5-7 (early follicular phase), 11-13 (late follicular phase), 15-17 (early luteal phase), 26-28 (late luteal phase) using color Doppler ultrasound. Pulsatility index was assessed. Results: A marked increase in diastolic flow and a significant decrease in pulsatility index from late follicular phase were observed in the ovary carrying the dominant follicle and corpus luteum. In the inactive ovary, no cyclic changes were seen in the diastolic flow and in the values of pulsatility index. There was a significant difference between the value of pulsatility index of the active ovary and the inactive ovary in the late follicular, the early luteal and the late luteal phases (for active ovary 1.48 ± 0.35, 0.86 ± 0.13, 0.84 ± 0.15; for inactive ovary 2.50 ± 0.30, 2.71 ± 0.27, 2.54 ± 0.37, respectively) (p < 0.0005). Conclusions: We demonstrated the physiology of ovarian haemodynamics during the menstrual cycle. This will provide the possibility for studies of ovarian blood flow under pathologic conditions.eninfo:eu-repo/semantics/closedAccessColor Doppler SonographyMenstrual CycleOvarian arteryOvulationArticle10126282-s2.0-0031965707Q3