摘要
目的探讨超声经后脑横断面观察孕11~13+6周胎儿后脑结构的可行性。方法随机选择2695例孕11~13+6周胎儿,行颅脑正中矢状面及经后脑横断面超声检查,观察后脑结构并测量后脑透明层厚度;分析两切面检测颅内透明层厚度的一致性。结果 2695例胎儿中,2402例均获得颅脑正中矢状切面及经后脑横断面(其中1例两切面后脑结构均显示异常),239例仅获得经后脑横断面,54例未获得两切面。正常胎儿后脑在颅脑正中矢状切面及经后脑横断面均显示为"二高三低回声带"结构。两切面所测的胎儿透明层厚度一致性较好(一致性偏倚为0.0219,一致性界限为-0.2740~0.2874)。结论孕11~13+6周经后脑横断面观察胎儿后脑结构可作为一种安全、快速、有效的方法筛查胎儿神经系统畸形。
Objective To explore the feasibility of using transverse of posterior brain with ultrasound for observing the intracranial posterior brain structure of fetuses in 11~13+6 gestational weeks.Methods Two thousand six hundred and ninety-five normal fetuses of 11~13+6 gestational weeks were randomly selected to obtain the mid-sagittal and posterior transverse sections of the brain.The structure of the posterior brain was observed and the thickness of the intracranial transparent layer was measured to analyze the consistency of the thickness of the intracranial transparent layer detected by the two sections.Results Among the 2695 fetuses,2402 cases received mid-sagittal and posterior transverse sections of the brain(1 case showed abnormal posterior brain structure),and 239 cases received only posterior transverse sections of the brain but no mid-sagittal sections.54 cases failed to receive any two kinds of sections of brain.The structure of "two high and three low echo cords" in normal fetal posterior brain was observed on sagittal section and transverse section.The values of intracranial translucency thickness measured in the two sections were in good agreement(the consistency bias was 0.0219,consistency boundaries was-0.2740-0.2874).Conclusion The using of posterior transverse section in first trimester to observe fetal posterior brain structure can be a safe,rapid and effective method for screening fetal nervous system malformations.
作者
张雪梅
冉素真
张晓航
ZHANG Xuemei;RAN Suzhen;ZHANG Xiaohang(Department of Ultrasound,Chongqing Maternal and Child Health Hospital,Chongqing 400021,China)
出处
《临床超声医学杂志》
CSCD
2020年第4期304-306,共3页
Journal of Clinical Ultrasound in Medicine
基金
重庆市卫生计生委2015年医学科研项目(2015ZBXM026)
重庆市妇幼保健院2019年院级科研项目(2019YJMS10)。
关键词
超声检查
产前
早孕期
颅内透明层
Ultrasonography,prenatal
First trimester,intracranial translucency
