2565
Reproducibility evaluation on resolving complex fiber orientations using diffusion spectrum imaging at 3T and 7T
Nan-Hao Chen1,2, Kuan-Hung Cho2, Yi-Ping Chao3,4, Sheng-Min Huang2, Norihiro Sadato5, Li-Wei Kuo2,6, and Masaki Fukunaga5
1Biomedical engineering and Environmental sciences, National Tsing Hua University, Hsinchu, Taiwan, 2Institute of Biomedical Engineering and Nanomedicine, National Health Research Institutes, Miaoli, Taiwan, 3Department of Computer Science and Information Engineering, Chang Gung University, Taoyuan, Taiwan, 4Graduate Institute of Biomedical Engineering, Chang Gung University, Taoyuan, Taiwan, 5Division of Cerebral Integration, Department of System Neuroscience, National Institute for Physiological Sciences, Okazaki, Japan, 6Institute of Medical Device and Imaging, National Taiwan University College of Medicine, Taipei, Taiwan
This study investigated the reproducibility of diffusion spectrum imaging (DSI) at different field strengths and found that DSI at 7T could provide relatively better reproducibility than that at 3T for resolving the crossing fibers.
(a) Orientational similarity (SIM) maps of different voxel sizes and field strengths. (b) Averaged SIM of single-fiber and crossing-fiber groups.
(a) Deviation angle (AngleDev) maps of different voxel sizes and field strengths. (b) Averaged AngleDev of single-fiber and crossing-fiber groups.