Morphometric analyses of embryos

Jennifer Kahn, Thomas Elliott, P. Nagy

Research output: Chapter in Book/Report/Conference proceedingChapter

1 Citation (Scopus)

Abstract

Morphological assessment of embryos is evaluated on days 0, 1, 2, or 3. Assessment on days 5 and 6 (or occasionally on day 4) is associated with extended culture to the blastocyst stage. Day 0 evaluation is based on oocyte morphology and only used when intracytoplasmic sperm injection (ICSI) is performed when cumulus and corona cells are removed. A normal zygote forms on day 1 and should have two pro-nuclei (PN) that are of equal size, closed, and in the center of the cytoplasm; possess at least three nucleolar precursor bodies (NPBs) in each PN; and NPB that are polarized (preferentially) or nonpolarized in both PN. Transferring embryos at the blastocyst stage has become an option for most assisted reproductive clinics due to the development of sequential culture media. Different monitoring systems allow embryologists to visualize the changes that occur while in culture, such as cleavage, fragmentation, and blastulation.

Original languageEnglish
Title of host publicationHuman Assisted Reproductive Technology: Future Trends in Laboratory and Clinical Practice
PublisherCambridge University Press
Pages248-259
Number of pages12
ISBN (Print)9780511734755, 9781107001121
DOIs
Publication statusPublished - Jan 1 2011

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Blastocyst
Embryonic Structures
Cumulus Cells
Intracytoplasmic Sperm Injections
Zygote
Oocytes
Culture Media
Cytoplasm

ASJC Scopus subject areas

  • Medicine(all)

Cite this

Kahn, J., Elliott, T., & Nagy, P. (2011). Morphometric analyses of embryos. In Human Assisted Reproductive Technology: Future Trends in Laboratory and Clinical Practice (pp. 248-259). Cambridge University Press. https://doi.org/10.1017/CBO9780511734755.023

Morphometric analyses of embryos. / Kahn, Jennifer; Elliott, Thomas; Nagy, P.

Human Assisted Reproductive Technology: Future Trends in Laboratory and Clinical Practice. Cambridge University Press, 2011. p. 248-259.

Research output: Chapter in Book/Report/Conference proceedingChapter

Kahn, J, Elliott, T & Nagy, P 2011, Morphometric analyses of embryos. in Human Assisted Reproductive Technology: Future Trends in Laboratory and Clinical Practice. Cambridge University Press, pp. 248-259. https://doi.org/10.1017/CBO9780511734755.023
Kahn J, Elliott T, Nagy P. Morphometric analyses of embryos. In Human Assisted Reproductive Technology: Future Trends in Laboratory and Clinical Practice. Cambridge University Press. 2011. p. 248-259 https://doi.org/10.1017/CBO9780511734755.023
Kahn, Jennifer ; Elliott, Thomas ; Nagy, P. / Morphometric analyses of embryos. Human Assisted Reproductive Technology: Future Trends in Laboratory and Clinical Practice. Cambridge University Press, 2011. pp. 248-259
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