摘要
目的:探讨未用镇静剂条件下胎儿颅脑DWI成像技术。方法:纳入60例单胎孕妇行胎儿颅脑扩散加权成像(DWI)。所有孕妇及胎儿未用镇静处理。通过改良常规DWI参数,缩短扫描时间,于呼气末屏气采集。所获得的图像经两名放射科医生独立进行评分,大于3分认为图像质量良好。采用组内相关系数进行统计学分析。结果:经过使用改良后的DWI序列,同时结合孕妇屏气配合,60例胎儿颅脑DWI均采集成功。所有胎脑DWI图像评分均大于3分,图像质量良好。两名放射科医生图像质量评分的组内相关系数为0.998(P<0.001)。结论:在不采用镇静的条件下结合孕妇屏气配合,使用改良的DWI序列对胎儿颅脑DWI成像是可行的。
Objective: To investigate fetal brain diffusion weighted imaging (DWI) without sedation for pregnant women and/or fetuses. Methods: 60 pregnant women with single birth were enrolled in this study. The fetal brain had modi-fied DWI examination without sedation. The conventional DWI were modified to reduce scanning time and the data were ac-quired during end-expiration breath-holding. Two radiologists evaluated the DWI images of fetal brain by images quality sco- ring system. More than 3 scores was considered acceptable image. Intra-class correlation coefficient (ICC) was used to calcu-late the agreement of the two radiologists. Results: All the 60 pregnant women underwent fetal brain DWI examination suc-cessfully by modifying DWI sequence combined with breath-holding cooperation. Two radiologists evaluated the images quality of all fetal brain DWI images. The scores of DWI images were more than 3 and all the images were acceptable. The ICC of images quality scores evaluated by the two radiologists was 0. 998 (P〈0. 001). Conclusion: It is feasible to acquire good images of the fetal brain by modified DWI with pregnant women breath-holding cooperation without sedation.
出处
《放射学实践》
2013年第11期1169-1171,共3页
Radiologic Practice
关键词
胎儿
颅脑
磁共振成像
扩散加权成像
Fetus
Brian
Magnetic resonance imaging
Diffusion weighted imaging