/uploadfiles/small/200802/1204180565.jpg 双顶径6.2CM,头围23.9CM,腹围22.4CM,股骨长4.6CM,胎心153次/分,胎盘位于子宫后壁.羊水最大深度4.6CM,脐动脉S/D:2.74,HC/AC:1.07