TBSS parametric maps of the subgroups of patients with DLB (VH vs. no-VH) (A) Regions highlighted in red showed tracts with a reduced FA. They localized in right ILF, IFOF and UNC in patients with VH (pFWE <.05) (B) Regions highlighted in red showed greater MD in patients with VH, which was widespread along several white matter tracts (IFOF, ILF, SLF) in the right hemisphere.