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27周胎儿双顶径是多少
更新时间: 2020-11-05 00:00:00  

怀孕27周时胎儿双顶径的平均值为6.98士0.57cm。不同的胎儿由于发育差异,可存在一定的区别。双顶经指的是胎儿头部左右两侧之间最宽部位的长度,又叫头部大横径。是评估孩子在宫腔内发育情况的一种指标,还可以用来评估是否有头盆不称,能否通过产道顺利分娩。

关键词: 胎儿 多少

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