摘要
目的应用磁共振弥散张量成像(DTI)对脑神经纤维束定量可重复性进行研究。方法对28名志愿者进行两次磁共振平扫及弥散张量成像,分别为第一次扫描及2周后扫描。应用DSI-studio软件,分别对皮质脊髓束、网状脊髓束,以及胼胝体体部、小脑脚上束四组纤维束的平均扩散率(MD)、各向异性分数(FA)、轴向扩散速率(AD)和径向扩散率(RD)进行测量,对同一纤维束两组相关数据进行可重复研究。统计学方法应用组内相关系数(ICC)进行分析。结果四组运动相关纤维束,FA、MD、AD、RD组间相关系数ICC为0.942-0.994。结论同组纤维束两次测量可重复性较好,方法可靠。
Objective To study the quantitative reproducibility of the pyramidal tract using DTI.MethodsTwo MRI plain scans and DTI were performed on 28 volunteers,one for the first scan and the other two weeks later.Using DSI-studio software,Measure the MD,FA,AD,and RD of four groups of fiber tracts:corticospinal tract,reticular spinal tract,corpus callosum,and superior cerebellar peduncle.Conduct replicable studies on the relevant data of two groups of the same fiber bundle.Statistical methods(ICC)were applied for analysis.ResultsFour groups of motor related fiber bundles,the correlation coefficient(ICC)between FA,MD,AD,and RD groups is 0.942-0.994.ConclusionThe repeatability of two measurements of the same group of fiber bundles is good,and the method is reliable.
作者
赵海
王军
付泳淳
王铁刚
邵滢如
于志刚
梁彤
ZHAO Hai;WANG Jun;FU Yong-chun;WANG Tie-gang;SHAO Ying-ru;YU Zhi-gang;LIANG Tong(Department of MRI,Daqing Hospital of TCM,Daqing 163000,Heilongjiang Province,China;Department of Rehabilitation,Daqing Hospital of TCM,Daqing 163000,Heilongjiang Province,China)
出处
《中国CT和MRI杂志》
2024年第12期35-36,共2页
Chinese Journal of CT and MRI
基金
黑龙江省中医药管理局科研项目(ZHY2022-033)。