Advantages of MRI on Fetal Central Nervous System Anomalies
Objective: To explore the advantages of MRI on fetal central nervous system anomalies. Materials and methods: Fouty-two women with complicated pregnancies, age from 22 to 35 years, gestation from 16-36 weeks, were studied with a 1.5 T superconductive MR unit within 48 hours after ultrasound (US) studies. Half-Fourier acquisition single-shot turbo spin-echo (HASTE) T<,2>-weighted imaging (T<,2>WI) sequence were performed in all patients, and fast low angle shot (FLASH) T<,1>- weighted imaging (T<,1>WI) sequence were applied sequentially in eight of them. Comparison of the results was made between the MRI and US findings as well as autopsy or postnatal follow-up MRI findings. Results: Twenty cases and only one case were made missed diagnoses by US and MRI respectively. US has limits and low specificity to demonstrate anomalies of fetal central nervous system (especially in fetal brain tissue and spine cots). Conclusion: MR has advantages in displaying fetal central nervous system anomalies than ultrasound, MR imaging is a valuable complement to sonography in difficult cases, it can conforming, completing, even more correcting the diagnosis made by ultrasound.
fetus central nervous system anomaly magnetic resonance imaging ultrasonography
Guangbin Wang Ruiqin Shan Yuxiang Ma Taifei Yu Liguang Chen Huihua Li Lei Qu
Shandong Medical Imaging Research Institute, Jinan 250021, China Jinan Maternity and Child Care Hospital, Jinan 250001, China
国际会议
首届国际断层影像解剖学研讨会(The 1st International Symposium on Sectional and Inaging Anatomy)
青岛
英文
99-103
2007-12-15(万方平台首次上网日期,不代表论文的发表时间)