Evaluation of lung growth rule of middle-late pregnancy fetal by utrasonography
- VernacularTitle:中晚孕胎肺生长规律的超声评价
- Author:
Jie ZHANG
;
Fan JIANG
;
Ping LUO
- Publication Type:Journal Article
- Keywords:
ultrasonography;
prenatal;
fetus;
lung;
growth rule
- From:
Acta Universitatis Medicinalis Anhui
2013;(12):1488-1490
- CountryChina
- Language:Chinese
-
Abstract:
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 (Hc),chest circumference (Tc) and of the chest area (Ta) in different gestational ages was calcalated. The correlation coefficient was obtained by applying statistical analysis. Results There was a linear relationship between RLa/Hc and RLa/Tc and growth of gestational age;the regression equation was:(RLa/Hc: ?Y= 0.948X-1.221, r2 =0.898, the RLa/Tc: ?Y=0.944X-1.800, r2 =0.894). RLa/Ta in different ges-tational 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-sec-tional plane) > upper and lower diameter (sagittal plane) > about size (the cross-sectional plane). Conclusion Prenatal ultrasound can evaluate the growth rule of normal fetal lung and provide the basis for assessment of fetal lung maturity.
