目前本院采用超声筛查与血清学筛查相结合的方法,筛选出高风险人群,进一步行羊水胎儿染色体诊断。现对在本院产前诊断中心确诊胎儿染色体异常患者临床资料进行总结,分析产前21-三体、18?三体筛查高风险、临界风险及存在胎儿超声软指标异常胎儿染色体异常检出情况。1资料与方法1.1临床资料收集2011年10月~2013年8月在本院产前 At present, our hospital adopts a combination of ultrasound screening and serological screening to screen high-risk groups and further diagnose fetuses with fetal amniotic fluid. Now in our hospital prenatal diagnosis of fetal chromosomal abnormalities were diagnosed in patients with clinical data summary analysis of prenatal 21-trisomy, 18 trisomy screening high risk, critical risk and presence of fetal ultrasound soft index abnormal fetal chromosomal abnormalities detected Happening. 1 Materials and Methods 1.1 Clinical Data Collection October 2011 ~ August 2013 in our hospital prenatal