Study finds sonographic fetal weight estimation is more accurate in women with high BMI, suggesting its use over clinical methods.
Maternal obesity significantly reduces the accuracy of clinical EFW, whereas sonographic EFW maintains stable performance across BMI strata. Sonographic assessment should therefore be prioritized for fetal weight estimation in women with elevated BMI, particularly in the late third trimester, when weight-based delivery decisions are made.
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Krencel et al. (2026) studied this question.
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