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孕四个月双顶径是多少正常
更新时间: 2020-11-04 00:00:00  

孕四个月双顶径正常值:三厘米到4厘米范围,但是每个胎儿的发育情况和标准长度都是不同的。

双顶径(biparietaldiameter,BPD),医学名词,又称胎头双顶径,是指胎儿头部左右两侧之间最宽部位的长度,又称为“头部大横径”。B超测量BPD>8.5示胎成熟。

关键词: 多少 正常

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