one of the tiny villi that stick out of the fetal chorion and combine with the mother's uterine tissue to form the placenta

objective to evaluate the safety and clinical value of chorionic villus sampling via the cervix for prenatal diagnosis of early pregnancy.

目的探讨早孕期经宫颈吸取绒毛术的安全性及临床价值。

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。

methods 157 samples of chorionic villus in early pregnancy were analyzed by cytogenetic method.

方法对15 7例孕妇早期流产绒毛进行染色体分析。

objective:to investigate the damage of dna in human early chorionic villus cells in uterus induced by diagnostic ultrasound and evaluate the method used for detection of strand breaks in human dna.

目的：探讨诊断超声经腹照射子宫内胚胎是否引起人早孕绒毛细胞的dna链的损伤及评价检测dna单、双链断裂的方法。

chorionic villus sampling (cvs) a procedure in which cells from the chorionic willi are collected with a tube through the cervix is usually performed between the 10th and 12th weeks of pregnancy.

在怀孕第十周和十二周之间可以做一次绒毛膜绒毛样检（cvs），在体测过程中绒毛膜细胞将用试管收集起来。

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。

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…

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癥等进行比较和讨论。

antenatal diagnosis by chorionic villus sampling can be done.

产前诊断由绒毛采样是可以做到的。

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。

objective: to compare the relative safety of two methods of chorionic villus sampling.

目的：比较两种术式绒毛取材的相对安全性。

the next step in improving the current test will include analysis of dna from direct chorionic villus sampling or amniotic fluid to further reduce the tat.

接下来，进一步减少tat的改进措施包括从绒毛膜绒毛或羊水直接取样用于dna分析。

treatment some forms of cah can be detected in prenatal tests like amniocentesis or chorionic villus sampling.

治疗一些类型的先天性肾上腺增生性肥大能够运用诸如羊水诊断或绒毛膜取样的产前检查被发现。

results: 72-100% of peripheral blood lymphocyte metaphases or inter-phases, 60- 70% of amniocyte interphases, and 95-99% of chorionic villus cell interphases showed expected signals.

结果：72～100％外周血淋巴细胞中期相或间期核、60～70％羊水细胞间期核、95～99％绒毛细胞间期核显示预期信号。

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。

women in high risk groups tend to undergo a combination of scans and hormone level tests in order to determine if they need to have an invasive test such as amniocentesis or chorionic villus sampling.

高危产妇一般接受扫描和荷尔蒙检查，以确定是否需要进行羊膜穿刺术和绒毛取样等侵入性检查。

a chorionic villus is a minute vascular projection on the fetal chorion.

绒膜绒毛是胎儿绒毛膜上的一种微小的血管凸出物。

objective: to explore a method of efficient direct chromosome analysis and chorionic villus cultivation in first trimester pregnancy.

前言：目的：摸索建立一种快速简便的孕早期绒毛膜细胞原位培养和染色体制备方法。