DTI观察胼胝体纤维束与联络纤维、投射纤维的联系研究  

Study of the relationship between the corpus callosum fiber tracts and the associative/projection fibers by DTI

作　　者：姜洪新 张洪丽 张萍 陈昭燃[3,4] 姬国敏 胡建新 居艳梅 JIANG Hongxin;ZHANG Hongli;ZHANG Ping;CHEN Zhaoran;JI Guomin;HU Jianxin;U Yanmei(Department of Radiology,Gucheng Hospital,Gucheng,253800,China;Center for Higher Brain Functions,Capital Medical University,Beijing Institute for Brain Disorders,Beijing,100069,China)

机构地区：[1]河北省故城县医院放射科,河北故城253800 [2]深圳大学总医院功能检查中心,广东深圳518060 [3]首都医科大学高级脑功能中心,北京100069 [4]北京脑重大疾病研究院,北京100069 [5]首都医科大学三博脑科医院神经影像科,北京100051

出　　处：《中国中西医结合影像学杂志》2018年第2期114-117,共4页Chinese Imaging Journal of Integrated Traditional and Western Medicine

基　　金：北京脑重大疾病研究院院级课题(BIBD-PXM2013_014226_07_000084)

摘　　要：目的:采用DTI观察胼胝体与联络纤维、投射纤维的毗邻关系。方法:收集69例健康志愿者行MRI扫描,颅内未见异常信号,后行DTI扫描,应用独立成分分析法分别筛选出不同纤维束成分,并分析差异,采用Extended MR Workspace工作站上的DTI Studio软件对所得DTI原始数据进行预处理,显示胼胝体及其邻近相关纤维束。结果:胼胝体在脑内连接广泛,尤其胼胝体压部,有前联合环路通过。结论:胼胝体位于纵裂底部,连接左右两侧大脑半球,是最大的横行神经纤维束,主要联系左右半球新皮质各部,其纤维联系额、顶、枕、颞叶,下面构成侧脑室顶,前部和后部进入额叶及枕叶,形成前钳、后钳,与脑内其他传导束有着密切联系。Objective:To observe the relationship between the corpus callosum and the contact fibers or the projection fibers using DTI tractography.Methods:DTI tractography was performed on 69 healthy volunteers.The corpus callosum and its adjacent fibre tracts were showed by the workstation processing.The relationship between callosum corpus and other fiber bundles and between the upper and lower pathway displayed by DTI.Results:The corpus callosum was widely connected with other area in the brain,especially,the anterior commissure looped through the splenium of corpus callosum.Conclusion:The corpus callosum as the brain’s largest commissural fibers,is located at the bottom of longitudinal fissure,including the superior longitudinal fasciculus,superior occiptofrontal fasciculus,the anterior commissure,arched,inferior longitudinal fasciculus,inferior occiptofrontal fasciculus,short bow fiber,long bow fiber,corticospinal tract,corticopontile tracts,corticocerebellar tracts,corticonuclear tract,central thalamic radiations and so on.

关 键 词：弥散张量成像 扩散张量纤维束成像 胼胝体 前联合 穹隆 

分 类 号：R445.2[医药卫生—影像医学与核医学]