摘要
目的 探讨超声检测胎儿动脉导管的方法学.方法 以胎儿四腔心观为基准,移动探头显示由动脉导管及其相邻结构形成的＂V＂形征、三指征、＂Z＂形征、＂曲棍柄＂征等特征性的超声图像,在形成＂V＂形征的切面测量动脉导管的内径、收缩期流速、舒张期流速和阻力指数.结果 动脉导管内径随着胎儿孕周的增长逐渐增宽,流速逐渐加快,阻力指数随孕周增加无明显变化.结论 根据＂V＂形征、三指征、＂Z＂形征、＂曲棍柄＂征等特征性声像图可以快速辨认胎儿动脉导管.
Objective To explor the ultrasonography methodology of the fetal ductus arteriosus.Methods Based on the fetal four-chamber sight, the characteristic ultrasound images were observed by moving probe,such as ＂V-shape＂ sign,＂three-finger＂ sign,＂Z-shape＂ sign and＂hockey-handle＂ sign making up of the ductus arteriosus and the nearby structures were observed by moving probe. The inner diameter,the systole flow velocity,the diastole flow velocity and the resistance index of the ductus arteriosus via the ＂V-shape＂ sign section were measured. Results Among the 365 normal fetus cases,355 ＂V-shape＂ sign cases,237 ＂three-finger＂ sign cases,298 ＂Z-shape＂ sign cases and 331 ＂hockey-handle＂ sign cases were identified. The inner diameter of the fetal ductus arteriosus increases gradually with the growth of the gestational weeks and the flow velocity increases gradually too, while the resistance index had no obvious variation with the growth of the gestational weeks. Conclusions According to the characteristic ultrasound images, such as ＂V-shape＂ sign, ＂three-finger＂ sign, ＂Z-shape＂ sign and ＂hockey-handle＂ sign, the fetal ductus arteriosus can be identified promptly.
出处
《中华超声影像学杂志》
CSCD
北大核心
2011年第1期49-52,共4页
Chinese Journal of Ultrasonography
关键词
超声检查
产前
胎儿
动脉导管
Ultrasonography,prenatal Fetus Ductus arteriosus
