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Selection of competent oocytes by morphological criteria for assisted reproductive technologies
Author(s) -
Ozturk Saffet
Publication year - 2020
Publication title -
molecular reproduction and development
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.745
H-Index - 105
eISSN - 1098-2795
pISSN - 1040-452X
DOI - 10.1002/mrd.23420
Subject(s) - perivitelline space , zona pellucida , biology , human fertilization , embryo quality , oocyte , selection (genetic algorithm) , polar body , embryo , assisted reproductive technology , andrology , pregnancy , anatomy , microbiology and biotechnology , computer science , infertility , genetics , medicine , artificial intelligence
Invasive and noninvasive methods are commonly used to select developmentally competent oocytes that can improve the take‐home baby rates in assisted reproductive technology (ART) centers. One of the noninvasive methods conventionally utilized to determine competent oocytes is the morphological analysis of cumulus complex, first polar body, zona pellucida, perivitelline space, meiotic spindle, and ooplasm. Successful fertilization, early embryo development, uterine implantation, and healthy pregnancy depend on the quality of oocytes, and morphological evaluation is one of the options used to predict quality levels. In this review, the morphological criteria being utilized in certain ART centers are comprehensively evaluated with special references to their predictive values and potential contributions to selecting high‐quality oocytes.