产前超声观察大动脉转位胎儿主动脉弓形态变化

发布时间：2018-03-20 19:57

本文选题：超声检查　切入点：产前　出处：《中国医学影像技术》2015年12期 　论文类型：期刊论文

【摘要】：目的观察不同孕周正常胎儿主动脉弓形态的变化规律,并探讨大动脉转位(TGA)胎儿主动脉弓形态变化。方法收集150胎正常胎儿(正常组,21~40周,每4个孕周为一个亚组,每亚组30胎)和29例TGA胎儿(病例组,21~24周12例,25~28周12例,29~36周5例)主动脉弓切面图像,利用曲率测量软件分别测量主动脉弓曲率等指标,分析其与孕周的相关性,并对两组相同孕周的胎儿进行统计学分析。结果正常胎儿主动脉弓最大曲率位置随孕周增加呈上移趋势(P0.05),二者呈直线正相关(r=0.86,P0.001),孕周与最大曲率位置的线性方程为Y=0.86X+15.75。随孕周增加TGA胎儿最大曲率位置也呈上移趋势,二者呈正相关(r=0.88,P0.001),但与相同孕周的正常胎儿相比,其主动脉弓最大曲率位置下移(P均0.05)。结论随着孕周的增长,胎儿主动脉弓形态发生显著变化。采用胎儿主动脉弓切面曲率量化主动脉弓形态,有利于丰富胎儿大动脉转位的诊断信息和提高诊断信心。
[Abstract]:Objective to observe the changes of aortic arch in normal fetuses at different gestational weeks, and to explore the changes of aortic arch in normal fetuses with transposition of great arteries (TGA). Methods 150 normal fetuses (normal group, 21 weeks, 40 weeks, every 4 weeks of gestation) were collected as a subgroup. There were 30 fetuses in each subgroup and 29 TGA fetuses (12 cases with 2528 weeks and 12 cases with 29 36 weeks 5 cases in the case group). The curvature of aortic arch was measured by curvature measurement software, and the correlation between aortic arch curvature and gestational week was analyzed. The results showed that the maximum curvature of aortic arch in normal fetuses showed an upward trend with the increase of gestational age (P0.05), and the linear equation between the position of gestational week and the maximum curvature was as follows: the two groups had a linear positive correlation with the position of maximum curvature. With the increase of gestational weeks, the position of maximum curvature of TGA fetus also showed an upward trend. There was a positive correlation between the two groups, but compared with the normal fetuses of the same gestational week, the maximum curvature position of the aortic arch moved down P 0.05. Conclusion the maximum curvature of aortic arch increases with the gestational week. The shape of the fetal aortic arch changed significantly. It is helpful to enrich the diagnostic information and improve the diagnostic confidence of fetal aortic artery transposition by quantifying the sectional curvature of the fetal aortic arch.
【作者单位】：中国医科大学附属盛京医院超声科;
【分类号】：R445.1;R714.5

【共引文献】