Regions showing lower fractional anisotropy (FA) values in HIV-negative chronic meningitis (n = 32) than in normal controls (n = 32).

The diffusivity values describe differences (meningitis vs. normal) in mean diffusivity (MD), axial diffusivity (AD), and radial diffusivities (RD) (mm2/s) multiplied by 10−6.*Significant differences among MD, AD, and RD were adjusted with age, sex, and education as covariates (p≤0.05).ΨNearest Gray Matter was near the center of the 5-mm radius search area.Abbreviations: MNI, Montreal Neurological Institute; BA, Brodmann area.