radial diffusivity Article 9 human 9 diffusion tensor imaging 8 male 8 Humans 7 Male 7 diagnostic imaging 7 female 7 Female 6 adult 6 axial diffusivity 6 controlled study 6 fractional anisotropy 6 major clinical study 6 neuroimaging 6 priority journal 6 white matter 6 Aged 5 White Matter 5 aged 5 mean diffusivity 5 middle aged 5 procedures 5 Adult 4 Diffusion Tensor Imaging 4 Middle Aged 4 diffusion weighted imaging 4 Aged, 80 and over 3 Mini Mental State Examination 3