Abstract #2662
The reproducibility of diffusion tensor imaging on brain connectivity measures between cortical regions using probabilistic tractography
Chun-Hao Huang 1 , Woan-Chyi Wang 2 , Yi-Ru Lin 1 , and Shang-Yueh Tsai 2
1
Electronic and Computer Engineering,
National Taiwan University of Science and Technology,
Taipei, Taiwan,
2
Graduate
Institute of Applied Physics, National Chengchi
University, Taipei, Taiwan
In this study we investigate the reproducibility of DTI
and probabilistic tractography on the brain connectivity
measures among 78 grey matter parcellations. Regular DTI
protocols (30 directions, b=1000) were performed twice
on each 14 healthy subject (7 male and 7 female in 20 to
25 years old). Results show that probabilistic
tractography can be successfully applied to calculate
the connectivity between GM regions. The inter-scan
reproducibility is at level of 10% for GM regions with
connectivity strength over 0.2. Therefore, structural
connectivity assessed by diffusion tensor tractogrphy
can be used to study the brain network.
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