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.

[1]  Kimihiko Kichikawa,et al.  Diffusivity and diffusion anisotropy of cerebellar peduncles in cases of spinocerebellar degenerative disease , 2007, NeuroImage.

[2]  John S. Duncan,et al.  Identical, but not the same: Intra-site and inter-site reproducibility of fractional anisotropy measures on two 3.0 T scanners , 2010, NeuroImage.

[3]  Osamu Abe,et al.  Tract-specific analysis of white matter pathways in healthy subjects: a pilot study using diffusion tensor MRI , 2009, Neuroradiology.

[4]  D. Bohning,et al.  Reproducibility, Interrater Agreement, and Age-Related Changes of Fractional Anisotropy Measures at 3T in Healthy Subjects: Effect of the Applied b-Value , 2008, American Journal of Neuroradiology.

[5]  P. V. van Zijl,et al.  Three‐dimensional tracking of axonal projections in the brain by magnetic resonance imaging , 1999, Annals of neurology.

[6]  P. Basser,et al.  Estimation of the effective self-diffusion tensor from the NMR spin echo. , 1994, Journal of magnetic resonance. Series B.

[7]  O. Abe,et al.  MR diffusion tensor imaging: recent advance and new techniques for diffusion tensor visualization. , 2003, European journal of radiology.

[8]  Jessica A. Turner,et al.  MultiCenter Reliability of Diffusion Tensor Imaging , 2012, Brain Connect..

[9]  Arno Klein,et al.  Evaluation of 14 nonlinear deformation algorithms applied to human brain MRI registration , 2009, NeuroImage.

[10]  大内 宏之.  Diffusion anisotropy measurement of brain white matter is affected by voxel size : underestimation occurs in areas with crossing fibers , 2007 .

[11]  Klaas Nicolay,et al.  Reproducibility of Quantitative Cerebral T2 Relaxometry, Diffusion Tensor Imaging, and 1H Magnetic Resonance Spectroscopy at 3.0 Tesla , 2007, Investigative radiology.

[12]  Naoto Hayashi,et al.  Effect of scanner in longitudinal diffusion tensor imaging studies , 2012, Human brain mapping.