Plattner G, Renner W, Went J, Beaudette L, Viau G
Obstet Gynecol. 1983 Apr;61(4):454-8.
Sector real-time ultrasound examinations of the fetal perineal area were done on fetuses ranging in age from 14 weeks to term. An attempt was made to determine fetal sex in 404 consecutive cases. Seventeen cases were lost to follow-up and 20 fetuses under 16 weeks of age were omitted, as only two predictions were made in this group. The fetal sex was predicted in 266 of the remaining 367 fetuses with 93% accuracy. In this series, 194 fetuses were less than 24 weeks of age; within this group, 118 predictions were made with an accuracy rate of 86%.
对14周龄至足月的胎儿进行了会阴区的扇形实时超声检查。对404例连续病例尝试确定胎儿性别。17例失访，16周龄以下的20例胎儿被排除，因为该组仅进行了两次预测。其余367例胎儿中的266例预测了胎儿性别，准确率为93%。在该系列中，194例胎儿年龄小于24周；在该组中，进行了118次预测，准确率为86%。
