O-006 Annotation-free embryo score calculated by iDAScore® correlated with live birth and has no correlation with neonatal outcomes after single vitrified-warmed blastocyst transfer

Abstract Study question Does the embryo score calculated by annotation-free embryo scoring system based on deep learning and time-lapse sequence images correlate with live birth (LB) and neonatal outcomes? Summary answer Annotation-free embryo score calculated by iDAScore correlates with decreased miscarriage and increased LB and has no correlation with neonatal outcomes. What is known already Embryo ranking models have recently been developed based on artificial intelligence (AI) and deep learning to rank embryos according to their potential for pregnancy. The practicability and usability of such models have been reported. And the previous report suggested iDAScore which is one of the deep learning models for embryo scoring was superior to traditional morphological assessment methods and morphokinetic embryo assessment models. However, few studies have used independent datasets to analyze the correlation between the score calculated by AI models, LB, and neonatal outcomes. Study design, size, duration A total of 3,010 single vitrified-warmed blastocyst transfer (SVBT) cycles were analyzed retrospectively. The quality and scoring of embryos were assessed using iDAScore v1.0 (iDAScore, Vitrolife, Sweden). The cohort was divided into four groups based on the iDAScore according to the percentile (9.9-9.3, 9.2-8.7, 8.6-7.3 and, 7.2-1.0). Participants/materials, setting, methods Scores were calculated using the iDAScore software module in the Vitrolife Technology Hub (Vitrolife, Gothenburg, Sweden). The correlation between iDAScore, LB rates and total miscarriage (TM), including 1st and 2nd trimester miscarriage, were analysed using a trend-test and multivariable logistic regression analysis. Furthermore, similarly, correlation between the iDAScore and neonatal outcomes were analysed. Main results and the role of chance LB rates decreased as the iDAScore decreased (P