小脑齿状核MRI功能成象研究  

FUNCTIONAL MAGNETIC RESONANCE IMAGING OF CEREBELLAR DENTATE NUCLEI

作　　者：蒲永林[1] 罗德馨[1] 张斯琴[1] 高健[1] 李庆丰[1] 洪楠[1] 王永恒 冯义濂[2] 叶安培[2] 李锦琦 

机构地区：[1]北京医科大学人民医院放射科,100044 [2]北京大学电子学系,100873 [3]ResearchImagingCenter,UniversityofTexasHealthScienceCenteratSanAntonio)

出　　处：《波谱学杂志》1997年第1期19-24,共6页Chinese Journal of Magnetic Resonance

摘　　要：通过测量齿状核T1弛豫时间，设计出齿状核功能成象破坏稳态梯度回波序列的成象参数，并用此序列在一正常志愿者，在静止和刺激时交替扫描3次，进行齿状核功能成象，刺激时齿状核信号平均强度是静止时的1．2倍．Based on the measurements of T1 relaxation time of cerebellar dentate nuclei, we determined thebest parameters of a gradient echo MRI sequence for functional imaging of cerebellar dentate nuclei.With the sequence we performed functional MRI of cerebellar dentatc nuclei in a normal volunteer.The average increase of signal intensity was 20 % during activation state compared with that in restingstate. And there was no overlap in signal intensity between resting state and during hand toy matchingtask.

关 键 词：磁共振 脑功能成象 小脑齿状核 

分 类 号：R741.044[医药卫生—神经病学与精神病学] R445.2[医药卫生—临床医学]