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12周一般胎儿crl是多少
更新时间: 2020-11-04 00:00:00  

孕12周crl径长约53mm,胎儿crl指的是头臀径。孕妇在怀孕6-13周之间,可以通过测量头臀径来估算孕龄。孕6周头臀径长约4mm。孕7周头臀径长约8-9mm。孕8周头臀径约14-15mm。孕9周头臀径长约22mm。孕10周头臀径长约31mm。孕11周头臀径长约41-42mm。孕12周头臀径长约53mm。孕13周头臀径长约66mm。

关键词: 一般 胎儿 crl 多少

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