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腹部超声由于受分辨率限制,只能在妊娠16周后发现胎儿心脏畸形。使用高频阴道超声可以在妊娠早期对胎儿心脏进行仔细检查。现对妊娠12～16周使用阴道超声发现10例胎儿心脏畸形进行研究。研究对象为3899例孕妇,孕龄分布:12周81例,13周341例,14周980例,15周1179例,16周1318例。受试者中780例孕妇有导致胎儿畸形的高危因素。这些高危因素包括:孕妇年龄超过37岁,既往生育过畸形儿,有遗传性疾病家族史,孕期感
Abdominal ultrasound due to resolution restrictions, only after 16 weeks of pregnancy found fetal heart malformations. Using high-frequency vaginal ultrasound in the first trimester of pregnancy fetal heart careful examination. Now 12 to 16 weeks of pregnancy using vaginal ultrasound found 10 cases of fetal cardiac malformations were studied. The study population was 3899 pregnant women. The distribution of gestational age was 81 weeks in 12 weeks, 341 cases in 13 weeks, 980 cases in 14 weeks, 1179 cases in 15 weeks and 1318 cases in 16 weeks. The 780 pregnant women in the study had the risk factors for fetal malformations. These high-risk factors include: pregnant women over the age of 37, had previous child-bearing children with anomalies, family history of hereditary diseases, a sense of pregnancy