近年来，国内外许多学者主张用超声多指标预测胎龄和胎儿体重，而目前国内大多数医院仍选用胎儿双顶径（BPD）为常规指标，尤其是基层医院。为此，逐步回归分析我院产前超声测量1386例正常足月妊娠胎儿BPD与实际出生体重间的关系，并用回归方程验证新生儿体重，以再次探讨超声 In recent years, many scholars at home and abroad advocate the use of multiple indicators of ultrasound to predict gestational age and fetal weight, while most hospitals in China still use BPD as a common indicator, especially in primary hospitals. To this end, a stepwise regression analysis of our hospital prenatal ultrasound measurement of 1386 cases of normal full-term gestational fetal BPD and the relationship between the actual birth weight and regression equations to verify the newborn weight to explore the ultrasound