Abstract:Background and PurposeThe aim of this study was to assess the repeatability of neurite orientation dispersion and density imaging in healthy controls (HCs) and traumatic brain injury (TBI).MethodsSeventeen HCs and 48 TBI patients were scanned twice over 18 weeks with diffusion imaging. Orientation dispersion (ODI), neurite density (NDI), and the fraction of isotropic diffusion (F‐ISO) were quantified in regions of interest (ROIs) from a gray matter, subcortical, and white matter atlas and compared using the co… Show more
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