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To measure the accuracy of different ultrasound endometrial patterns to predict successful embryo implantation during assisted conception; in vitro fertilisation (IVF) or intracytoplasmic sperm injection (ICSI).
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Ultrasound appearance of the endometrium may predict successful implantation in assisted conception, but studies have yielded conflicting results.
The explanation may be different timing of, and classification systems for, the scan, different treatment protocols, and different definitions of success. Also scan quality has improved over time.
This is a prospective study looking at the endometrial pattern as a predictor of IVF/ICSI outcome, adjusting for embryo quality, ease of transfer, and fresh or frozen cycles. The study will focus on good quality single embryo transfer at the blastocyst stage. Other endometrial ultrasound parameters such as thickness, volume and Doppler will also be measured. Reliability studies will also be conducted to assess and account for inter- and intra-observer variation.
200 women will be recruited. They will include approximately 100 undergoing fresh and 100 undergoing frozen embryo transfer. There will be no change to routine clinical care. A single operator will analyse all ultrasound images to reduce inter-observer variation. When there is uncertainty about the pattern the chief investigator will be consulted to reach an agreement.
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155 participants in 2 patient groups
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Central trial contact
Hiba Elhassan, MBBS BSc (Hons) MRCOG; Nicholas Raine-Fenning, MBChB MRCOG PhD
Data sourced from clinicaltrials.gov
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