摘要
目的监测正常妊娠中晚孕胎肺生长规律。方法599例18～40周正常单胎，按每两周分组，测量右肺在矢状面、横断面径线，描绘生长曲线。计算不同孕龄右肺断积（RLa）与头围（He）、胸围（Tc）及胸腔面积（Ta）的比值。应厢统计分析得出相关系数。结果RLa／Hc及RLa／Tc-与孕龄的增长呈直线关系，同归方程为：（RLa／He：Y=0．948X-1．221，r2=0．898，RLa／Tc：Y=0．944X-1．800，r2=0．894），不同孕龄胎儿RLa／Ta在恒定范围内（0．42～0．55）。胎肺任矢状面及横断面上的径线随孕龄增加，且生长速度前后径（横断嘶）〉上下径（矢状面）〉左右径（横断面）。结论产前超声能评价正常胎肺的生长规律，为胎肺成熟的评估提供依据、
Objective To monitor lung growth rule of normal middle-late pregnancy fetal. Methods 599 cases of 18 and 40 weeks normal singletons were grouped by every two weeks. The length of right lung in the sagittal plane and the cross-sectional plane were measured, and the growth curve was described. The ratio of right lung area （RLa） and head circumference （He） ,chest circumference （Tc） and of the chest area （Ta） in different gestational ages was calealated. The correlation coefficient was obtained by applying statistical analysis. Results There was a linear relationship between RLa/Hc and RLa/Te and growth of gestational age ; the regression equation was ： （ RLa/ He ： 5（= 0. 948X - 1. 221, r2 = 0. 898, the RLa/Te ： Y = 0. 944X - 1. 800, r2 = 0. 894）. RLa/Ta in different gesrational age was in constant range ：0.42 - 0.55. The length of right lung in the sagittal plane and the cross-sectional plane increased along with the gestational age, and the growth speed was ：before and after diameter（the cross-sectional plane） 〉 upper and lower diameter （sagittal plane） 〉 about size （the eross-seetional plane）. Conclusion Prenatal ultrasound can evaluate the growth rule of normal fetal lung and provide the basis for assessment of fetal lung maturity.
出处
《安徽医科大学学报》
CAS
北大核心
2013年第12期1488-1490,共3页
Acta Universitatis Medicinalis Anhui
基金
安徽省卫生厅医学科研课题(编号:2010C056)
关键词
超声检查
产前
胎儿
肺
生长规律
ultrasonography
prenatal
fetus
lung
growth rule
