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Korean Journal of Fertility and Sterility 1988;15(1):25-34.
Correlation between Ultra sonic Preovulatory Follicular Appearances and the Retrieval of Mature Oocytes in Stimulated Cycles
Hak-Soon Kim, Chang-Jae Shin, Jung-Gu Kim, Shin-Yong Moon, Jin-Yong Lee, Yoon-Seok Chang
Department of Obstetrics and Gynecology, College of Medicine, Seoul National University
과배란유도후 배란직전 난포의 초음파검사 소견과 성숙난자 획득간의 상관관계에 관한 연구
김학순, 신창재, 김정구, 문신용, 이진용, 장윤석
서울대학교 의과대학 산부인과학교실
The intrafo1licular echoes of cumulus oophoruses within ovarian follicles were assessed with the use of ultrasound in 86 women taking part in an in vitro fertilization(IVF) or gamete intrafallopian transfer(GIFT) program, stimulated with pure follicle-stimulating hormone(FSH)/human menopausal gonadotropin(hMG)/human chorionic gonadotropin (hCG). When intrafo1licular echoes were clearly separated from the follicular wall or relatively dispersed within the follicle, they were considered to be a dissociated cumulus, and when they were only slightly prominent from the follicular wall, they were suspected to be a nondissociated cumulus. A cumulus was seen in 62.1% of the follicles larger than 10 mm diameter and 75.1% of them were dissociated. The larger the follicles in size, the more the cumuluses in number and dissociation. The number of follicles and intrafollicular echoes per woman was not different whether or not she would be pregnant, but the number of dissociated cumuluses was significantly more in pregnant women. The number of observed dissociated cumuluses correlated significantly with the number of recovered mature oocytes. When an intrafollicular echo is seen, it can be taken as evidence of a sign of maturity of that particular follicle and oocyte. Ultrasonographic monitoring of intrafollicular echoes and follicular size is very helpful to predict follicular maturation in ovulation stimulation cycles.
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