摘要
近年来,产前超声在降低围生儿出生缺陷率上起着重要作用。在早孕期如果超声发现胎儿结构异常,如颈项透明层增厚等,尤其经介入性检查证实胎儿有染色体异常,孕妇即可进行流产终止妊娠,从而避免妊娠中晚期引产对产妇造成更大的创伤,因此在孕11～13+6周进行胎儿超声检查发现胎儿异常的意义重大。为了明确超声测定胎儿颈项透明层厚度在产前诊断中的意义,现就国内外文献对胎儿颈项透明层与产前超声的关系进行综述。
In recent years, prenatal ultrasound scan has become the most important method of reducing birth defects. If chromosomal abnormalities and other defects, such as increased nuchal translucency thick- ness,could be detected in a fetus by scanning, especially by invasive procedure, then the termination of a pregnancy could be carried out to avoid the trauma caused by the third trimester induction of labor. Thus it is extremely important to carry out a prenatal ultrasound scan at 11-13^＋6 week pregnancy. Here is to make a review and summary of both international and domestic researches in this area to figure out the importance of the fetal nuchal translucency thickness in the prenatal diagnosis.
出处
《医学综述》
2012年第15期2473-2476,共4页
Medical Recapitulate
关键词
超声检查
产前诊断
颈项透明层
染色体异常
出生缺陷
Ultrasound scan
Prenatal diagnosis
Nuchal translucency
Chromosomal abnormalities
Birth-defect
