正常足月胎儿主肺动脉超声多普勒AT/ET比值变化趋势的研究  

The trend of AT/ET ratio in normal fetal main pulmonary artery in the third trimester of pregnancy

作　　者：沙恩波 吕志儒 翟晶 荆春丽 王丽旻 李曼 于媛媛 Sha Enbo;Lv Zhiru;Zhai Jing;Jing Chunli;Wang Limin;Li Man;Yu Yuanyuan(Department of Ultrasound,Dalian Maternal and Child Health Hospital,Dalian Liaoning 116033,China)

机构地区：[1]大连市妇幼保健院超声科,辽宁大连116033

出　　处：《影像研究与医学应用》2020年第17期31-33,共3页Journal of Imaging Research and Medical Applications

基　　金：大连市医学科学研究计划项目(项目编号:1711073)。

摘　　要：目的:运用超声多普勒技术观察正常足月胎儿主肺动脉(MPA)多普勒流速曲线收缩期加速时间(AT)/射血时间(ET)比值的趋势,寻找足月胎儿主肺动脉AT/ET与孕周的关系。方法:选取2017年1月至2018年12月在本院就诊的孕37+0周~41+0周的360例孕妇,在分娩前均采用高分辨率多普勒超声测量胎儿主肺动脉(MPA)中段AT/ET 比值,根据分娩后新生儿Apgar评分为10分,新生儿相关评估认定为肺脏成熟儿。结果:正常孕37+0~41+0周胎儿的主肺动脉中段AT/ET比值与孕周的增加无相关性,P>0.05(如表1);正常孕37+0周以后AT/ET最小值为0.228。结论:在产前应用多普勒超声测量胎儿主肺动脉 AT/ET比值,可为无创性推测胎儿肺成熟度提供较为有价值的信息。Objective By observing ultrasonic doppler technology normal late pregnancy fetal main pulmonary artery (MPA) doppler measurement velocity curve systolic acceleration time (AT)/ejection time (ET) ratio trend,find the AT/ET change with gestational age and fetal lung maturity.Methods From January 2017 to December 2018,360 pregnant women who were examined at 37+0~41+0 weeks in the ultrasound department of dalian maternal and child health hospital.Before delivery,high-resolution doppler was used to measure the AT/ET ratio in the middle part of the main pulmonary artery (MPA).Results No correlation between AT/ET ratio in middle section of main pulmonary artery and increase of gestation period at 37+0 ~ 41+0 weeks of normal pregnancy.Conclusions The AT/ET ratio of fetal main pulmonary artery measured by doppler ultrasound in prenatal period can provide valuable information for non-invasive estimation of fetal pulmonary maturity.

关 键 词：多普勒超声 胎儿 主肺动脉 加速时间 射血时间 肺成熟 

分 类 号：R714.5[医药卫生—妇产科学]