FIELD: medicine.
SUBSTANCE: determined and measured are an optical expression density of the leukaemia inhibitory factor (LIF) in the germinal and glandular epithelium during an implantation window in the cycle preceding the in vitro fertilisation procedure and the cervical mucus vascular endothelial growth factor (VEGF) on the day of the transvaginal follicular puncture, a systolic-diastolic ratio (S/D) and a spiral artery resistance index (IR) on the day of the trigger shot; that is followed by calculating a regression function (Z) by formula. If Z>0, the endometrium is predicted to be receptive, whereas Z<0 shows the non-receptive endometrium.
EFFECT: using the declared method enables the high-accuracy prediction of the endometrial receptiveness and the pregnancy onset as a result of the in vitro fertilisation cycle.
2 ex
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