然而，常规的获得遗传学分析的胎儿组织的方法是有创伤的并且是对胎儿有一定的风险，这些方法包括羊膜腔穿刺和绒毛活检被称为侵入性产前诊断。

However, conventional methods of obtaining fetal tissues for genetic analysis, including amniocentesis and chorionic villus sampling, are invasive and constitute a finite risk to the unborn fetus.

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该文就介入性宫内诊断技术中的羊膜腔穿刺术、 绒毛活检术、胎儿脐血穿刺术及胎儿镜检查等产前诊断技术的操作和适应症等进行比较和讨论。

Invasive prenatal diagnostic techniques include amniocentesis, chorionic villus sampling(CVS), fetal blood sampling and embryoscopy. In this article, we introduced the procedures of these met…

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