Table 2.

Illustrated in these tables are sample sizes based on annualized rates of change in FA (2.A) and MD (2.B) in select regions of interest where at least one group had a sample size below 100. A total of 48 regions were investigated. Values under 100 are highlighted in yellow for nfvPPA, purple for svPPA, and blue for AD. Sample sizes are in an ascending order and grouped by pathology. The best sample size for each group is bolded. The region with the overall best sample size, all FTD groups included is the corpus callosum, bordered in red.

FA, fractional anisotropy; MD, mean diffusivity; ROI, region of interest; CC, corpus callosum; fasc., fascicule; Sup, superior; Ant, anterior; L, left; R, right; bvFTD, behavioral variant frontotemporal dementia; nfvPPA, non-fluent/agrammatic primary progressive aphasia; svPPA, semantic variant primary progressive aphasia, AD, Alzheimer's disease.