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8周双顶径多少正常
更新时间: 2020-11-05 00:00:00  

8周双顶径一般小于3厘米,因为孕周太小,一般测量不出具体的双顶径数据。

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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