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We aim to study radiation induced white matter injury in a pre-clinical model using Diffusion tensor MR imaging (DTI). Nineteen 12-week old Sprague–Dawley rats were irradiated to the right hemisphere using a linear accelerator. The dose distribution map was coregistered to the DTI map to generate the actual radiation dose to each white matter tract. Rats underwent longitudinal DTI scans at five time...
Axonal degeneration has been known to occur in the optic nerve (ON) of rat glaucoma model. Recently, quantitative diffusion tensor imaging (DTI) has been developed to investigate various white matter diseases in vivo. In this study, longitudinal DTI was thus employed to study such animal model in the present study. The results showed that radial diffusivity (lambdaperp) and fractional anisotropy (FA)...
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