MR ASSESSMENT OF LUNG DEVELOPMENT IN FETAL ANOMALIES USING RATIO OF LUNG TO LIVER SIGNAL INTENSITIES

作     者：刘明 张玉珍 冯赟 李玉华 LIU Ming, ZHANG Yu-zhen, FENG Yun, LI Yu-hua Deparment of Radiology, Xinhua Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai 200092, China

作者机构：Deparment of Radiology Xinhua Hospital School of Medicine Shanghai Jiaotong University 

出 版 物：《Journal of Shanghai Second Medical University(Foreign Language Edition)》 (上海第二医科大学学报（英文版）)

年 卷 期：2007年第19卷第2期

页      面：151-153页

学科分类：1002[医学-临床医学] 100210[医学-外科学(含：普外、骨外、泌尿外、胸心外、神外、整形、烧伤、野战外)] 10[医学] 

主　　题：urinary malformation pulmonary hypoplasia MR fetus 

摘      要：Objective To evaluate the monitoring and diagnostic potential of MR in fetal lung development using lung signal intensity changes in the fetus. Methods The lung-to-liver intensity ratio was calculated by means of region-of-interest analysis in all 35 fetuses including 7 bilateral urinary anomalies, 9 unilateral urinary anomalies, 5 pulmonary anomalies, and 14 others. Results All fetuses with urinary anomalies and pulmonary anomalies showed low ratio of lung-to-liver signal intensity. Conclusion Low ratio of lung-to-liver signal intensity on MR imaging indicates pulmonary hypoplasia after 22 weeks’ gestation.