Presence of adenomyosis at MRI reduces live birth rates in ART cycles for endometriosis.

Study Question: What is the impact of adenomyosis on the live birth rate (LBR) in women affected by endometriosis women undergoing ART?

Summary Answer: For women undergoing ART, the presence of adenomyosis at MRI, especially T2 high-signal intensity spots within the myometrium, has a negative impact on the LBR.

What Is Known Already: Adenomyosis is a common gynecological disease. The development of imaging techniques for the diagnosis has led to several adenomyosis phenotypes being described, and fertility issues appear to vary according to the characteristics of the lesions.

Focal adenomyosis is associated with primary infertility.

Objective: To study the association between adenomyosis and infertility, according to the adenomyosis phenotype as diagnosed by magnetic resonance imaging (MRI).

Design: A single-center, cross-sectional study.

Setting: University hospital-based research center.