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双顶径和股骨长度差多少正常
更新时间: 2020-11-04 00:00:00  

正常情况下,双顶径与股骨长相差范围可以是18mm-28mm的,双顶径83mm符合孕33周左右大大小,股骨长52mm符合孕28周左右的大小,一般小于或大于都不能超过2周的,双顶径和股骨长相差5周的太大,有可能是双顶径过大,也有可能股骨长过小的。

关键词: 股骨 长度 多少 正常

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