Anisotropic Asymmetry Analysis in Diffusion Tensor Images of Healthy and Heroin-dependent Subjects

摘要：

We apply a promising voxel-based method to the left/right anisotropic asymmetric analysis of fractional anisotropy (FA) in diffusion tensor images. Firstly, we calculated the FA values for each subject voxel-by-voxel. Secondly, we expanded the method of optional voxel-based morphometry (OVBM) 1 to create a better template to normalize FA images in the preprocessing step. Finally the asymmetric analyzing approach we developed earlier was used to directly detect the different asymmetries between healthy and heroin-dependent subjects 2, 3. Results showed the abnormal asymmetries in heroin-dependent subjects.

关键词： anisotropic asymmetry fractional anisotropy (FA) heroin-dependent diffusion tensor imaging (DTI)

作者: Xing Huang Hui Shen Zongtan Zhou Xuyi Wang Wei Hao Dewen Hu

作者单位: Department of Automatic Control, College of Mechatronics and Automation, National University of Defe The Second Xiangya Hospital of Center South University, Changsha, Hunan, 410008, P.R.C

会议类型: 国际会议

会议名称: 2007 IEEE/ICME International Conference on Complex Medical Engineering-CME2007(CME2007 第二届国际复合医学工程学术大会)

会议地点: 北京

会议语种:英文

页码: 944-947

在线出版日期: 2007-05-23（万方平台首次上网日期，不代表论文的发表时间）