chorionic villus sampling

1. Objective To determine value of chorionic villus sampling ( CVS) in early diagnosis of severe thalassemia.
   目的探讨绒毛活检在重型地中海贫血早期诊断的应用价值。
2. Application of ultrasound-guided transabdominal chorionic villus sampling in the prenatal diagnosis
   超声引导下经腹绒毛活检在产前诊断中的价值
3. Examples of diagnostic tests include amniocentesis and chorionic villus sampling.
   的例子，诊断测试，包括羊膜穿刺术和绒毛取样。
4. Methods: After obtaining fetal DNA by chorionic villus sampling and amniocentesis, using PCR method to detect genotypes and testing Hb Bart's level of cord blood after birth.
   方法：通过绒毛膜穿刺、羊膜腔穿刺及脐带血穿刺获取胎儿DNA，应用聚合酶链反应（PCR）等方法进行α地贫产前基因诊断，并于分娩后取胎儿脐带血检测HbBart's含量。
5. At present, the diagnosis of DS mainly depends on cytogenetic analysis through amniocentesis, chorionic villus sampling or puncture of umbilical vein to recovery fetal cell.
   目前该病的诊断是通过羊水穿刺、绒毛膜活检或脐静脉穿刺术获取胎儿细胞，经培养后进行染色体核型分析。
6. Conclusion: The present method of chorionic villus sampling is safe and reliable in the early stage antenatal diagnosis of the α-thalassemia of SEA.
   结论：绒毛取样是诊断缺失型α－地中海的一种安全可靠的孕早期产前诊断方法。
7. Application of trans-abdominal chorionic villus sampling and cytogenetic analysis in the prenatal diagnosis of chromosomal diseases in first trimester of gestation
   早孕期经腹绒毛活检及细胞遗传学分析在染色体疾病产前诊断中的应用
8. First-trimester fetal reduction to a singleton infant or twins: Outcome in relation to the final number and karyotyping before reduction by transabdominal chorionic villus sampling
   妊娠早期行多胎向单胎或双胎的减胎术：手术结局与最终胎儿数目和术前经腹绒毛膜活检核型分析结果相关
9. Chorionic villus sampling for prenatal diagnosis: clinical analysis of 36 cases
   绒毛活检应用于产前诊断36例临床分析
10. 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.
    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。
11. Invasive prenatal diagnosis include Chorionic villus sampling^ Amniocentesis et al. Though having a high accuracy, these methods have significant risk of fetal loss.
    有创性产前诊断包括绒毛活检、羊膜腔穿刺、胎儿宫内取血等，这些手段虽然诊断准确率较高，但对胎儿有一定的危害，且有导致孕妇发生流产的可能。

noun

1. a prenatal test to detect birth defects at an early stage of pregnancy

   Synonym:    chorionic villus biopsy