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Spinal cord in vivo diffusion tensor imaging of healthy human and spinalized cats

Introduction Using Diffusion Tensor Imaging (DTI) sequence provided by magnetic resonance imaging system, the diffusion properties of water can be quantified by measuring the diffusion anisotropy within each voxel [1]. Thus, one is able to track axons in white matter since their diffusivity is significantly higher than that of the rest of the tissue. The aim of this work is to use DTI to assess local diffusivity parameters and trajectories of spinal tracts in cats and humans. For instance, it would be valuable to characterize the integrity of spinal tracts and their long-term evolution after spinal lesions [2].