Characterization of the uterine junctional zone prior to IVF/ICSI: an observational study

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This observational study found that a significantly enlarged uterine junctional zone, as measured by MRI, correlated with lower pregnancy rates in women undergoing IVF/ICSI.

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This observational study assessed whether uterine junctional zone (JZ) myometrium dimensions measured by MRI before IVF/ICSI relate to ART outcomes in 113 infertile women. Women were stratified by the presence versus absence of metaphase I and germinal vesicle oocytes (MI/GV), and MRI measurements were correlated with oocyte maturation features, embryo morphology, and pregnancy outcomes. In the MI/GV = 0% group, the JZ myometrium was significantly enlarged and clinical pregnancy rates were significantly lower, while baby take-home rates showed a non-significant tendency in the same direction; other parameters were not directly influenced by JZ size. This paper is centrally about endometriosis or adenomyosis; it is not centrally about endometriosis or adenomyosis, but adenomyosis is discussed in the context of uterine junctional zone imaging and related uterine disorders in the paper’s reference list.

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Abstract

PURPOSE: The uterine junctional zone as documented by magnetic resonance imaging (MRI) has shown to be of significance with respect to the early process of human reproduction. In this study, MRI findings were related to the outcome of an IVF/ICSI program. MATERIALS AND METHODS: In 113 infertile women, the diameter of the anterior and posterior junctional zone (JZ) myometrium was documented by MRI prior to the use of ART. Each group of women was also subdivided according to the presence (MI/GV>0%) or absence (MI/GV=0%) of metaphase I(MI) and germinal vesicle (GV) oocytes. The MRI measurements were related to these and further parameters like expansion of the cumulus oophorus, pronuclei stages, embryo morphology and pregnancy rates. RESULTS: In all women with MI/GV=0%, the JZ myometrium was significantly enlarged (p<0.004) and the clinical pregnancy rate was significantly lower (p0%. The baby take home rates tended to the same results, but were not significantly different. No direct influence of the JZ on all other parameters could be observed. CONCLUSIONS: The JZ, as documented by MRI, might interfere with follicular function.
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Abstract

Purpose The uterine junctional zone as documented by magnetic resonance imaging (MRI) has shown to be of significance with respect to the early process of human reproduction. In this study, MRI findings were related to the outcome of an IVF/ICSI program.

Materials and methods

In 113 infertile women, the diameter of the anterior and posterior junctional zone (JZ) myometrium was documented by MRI prior to the use of ART. Each group of women was also subdivided according to the presence (MI/GV > 0%) or absence (MI/GV = 0%) of metaphase I(MI) and germinal vesicle (GV) oocytes. The MRI measurements were related to these and further parameters like expansion of the cumulus oophorus, pronuclei stages, embryo morphology and pregnancy rates.

Results

In all women with MI/GV = 0%, the JZ myometrium was significantly enlarged (p < 0.004) and the clinical pregnancy rate was significantly lower (p 0%. The baby take home rates tended to the same results, but were not significantly different. No direct influence of the JZ on all other parameters could be observed.

Conclusions

The JZ, as documented by MRI, might interfere with follicular function. Similar content being viewed by others

References

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Conflict of interest statement The author does not have any financial or commercial interest in this paper. Author information Authors and Affiliations Corresponding author Rights and permissions About this article Cite this article Kunz, G., Beil, D. Characterization of the uterine junctional zone prior to IVF/ICSI: an observational study. Arch Gynecol Obstet 281, 945–953 (2010). https://doi.org/10.1007/s00404-009-1285-8 Received: Accepted: Published: Issue date: DOI: https://doi.org/10.1007/s00404-009-1285-8

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Condition tags

endometriosis

MeSH descriptors

Blastocyst Infertility, Female Myometrium Adult Blastocyst Endometriosis Endometriosis Female Humans Infertility, Female Infertility, Female Infertility, Female Magnetic Resonance Imaging Metaphase Myometrium Pregnancy Pregnancy Rate Sperm Injections, Intracytoplasmic Treatment Outcome Young Adult

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