Endometrial receptivity change: ultrasound evaluation on ovulation day and transplantation day during the natural frozen embryo transfer cycle.

Front Endocrinol (Lausanne) · 2023 · PMC10562732 · PMID 37822604

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a decreasing trendno p-value reported

However, under 3D and power Doppler, endometrial and subendometrial blood perfusion showed a decreasing trend from the ovulation day to the transplantation day, indicating that 3D and power Doppler were more sensitive to blood flow assessment than color Doppler.

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