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Intersite Reliability of Diffusion Tensor Imaging on Two 3T Scanners

2015; Japan Society of Magnetic Resonance in Medicine; Volume: 14; Issue: 3 Linguagem: Inglês

10.2463/mrms.2014-0077

1880-2206

Koji Kamagata, Keigo Shimoji, Masaaki Hori, Akira Nishikori, Kohei Tsuruta, Mariko Yoshida, Kouhei Kamiya, Ryusuke Irie, Michimasa Suzuki, Shinsuke Kyogoku, Yuriko Suzuki, Noriko Sato, Shigeki Aoki,

Advanced MRI Techniques and Applications

We report the intersite scan reliability of diffusion tensor imaging (DTI) parameters using identical 3T scanners and acquisition protocols at 2 sites. Voxel-based analysis revealed several regions with significant intersite differences. The intersite reliability of DTI measures showed coefficients of variation below 4% in tract-specific analysis (TSA) and below 6% in atlas-based analysis. Given the excellent reliability of TSA, our results suggest it as a promising and useful tool for multicenter DTI studies.