Intersite Reliability of Diffusion Tensor Imaging on Two 3T Scanners.
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.
Department of Radiology, Juntendo University School of Medicine.
Koji
K
Kamagata
Keigo
K
Shimoji
Masaaki
M
Hori
Akira
A
Nishikori
Kohei
K
Tsuruta
Mariko
M
Yoshida
Kouhei
K
Kamiya
Ryusuke
R
Irie
Michimasa
M
Suzuki
Shinsuke
S
Kyogoku
Yuriko
Y
Suzuki
Noriko
N
Sato
Shigeki
S
Aoki
D000328:Adult; D016880:Anisotropy; D001921:Brain / Q000033:anatomy & histology*; D038524:Diffusion Magnetic Resonance Imaging / Q000295:instrumentation* / Q000379:methods*; D056324:Diffusion Tensor Imaging / Q000295:instrumentation* / Q000379:methods*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D015203:Reproducibility of Results