胎儿双侧锁骨下动脉超声探查324例分析

Analysis of bilateral subclavian arteries by ultrasound examination in 324 fetuses

目的:通过对胎儿双侧锁骨下动脉超声检查情况的分析,探讨锁骨下动脉切面观察在胎儿心血管检查中的意义。方法:选择324例胎儿进行双侧锁骨下动脉超声检查,计算规定时间内双侧锁骨下动脉的显示率。结果:324名胎儿中,有300例在15min内能够显示右锁骨下动脉,显示率92.5%,有253例在15min内能够有效显示左锁骨下动脉,显示率78.1%。在28周后胎儿中左锁骨下动脉显示率较低。结论:在28周前的胎儿中双侧锁骨下动脉均具有较高的显示率,因此双侧锁骨下动脉切面应当是胎儿心血管检查中必须观察的部分,对于胎儿染色体异常的筛查具有较为重要的意义。

Objective：The situation of fetal subclavian arteries examination in recent years was analyzed to estimate the significance of bilateral subclavian arteries observation in fetal cardiovascular ultrasound examination.Methods：The left subclavian artery and right subclavian artery in 324 fetuses were checked with ultrasound.And display ratio of subclavian arteries in specified time was calculated.Results：In all 324 fetuses,the right subclavian artery can be showed in 300 fetuses within 15 minutes,the shown rate was 92.5%.In all 324 fetuses,the right subclavian artery can be showed in 253 fetuses within 15 minutes,the shown rate was 78.1%.The shown rate of left subclavian artery was lower than that in fetuses older than 28 weeks.Conclusion：The shown rate of bilateral subclavian arteries in the fetuses younger than 28 weeks is quite high.So bilateral subclavian arteries observation should be a necessary part of fetal cardiovascular ultrasound examination.It is important to screen fetal chromosomal abnormalities.