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Fig. 4 | Reproductive Health

Fig. 4

From: Ovarian stimulation with human and recombinant gonadotropin – comparison of in vitro fertilization efficiency with use of time-lapse monitoring

Fig. 4

Timing of subsequent embryo development stages depending on the type of gonadotropin used for ovarian stimulation in the group of women who achieved pregnancy (a) and in the group of women in whom pregnancy was not achieved (b). (data are expressed as mean time in hours; time stages statistically significantly different were marked with dotted lines; Group A – women who achieved pregnancy; Group B – women in whom pregnancy has not been achieved; tF – time of the first frame in which both pronuclei could be observed; tC – the frame with the last observation of both pronuclei; t1-t9 – times for corresponding numbers of cells; tM – the first frame in which the embryos were compacting into the morula stage; tB – the frame in which a crescent-shaped area began to emerge from the morula)

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