Figure 3 Fractional anisotropy (FA) and radial diffusivity (RD) values at both visits

Mean FA and RD for the mild traumatic brain injury patients (mTBI; green bars = visit 1, black bars = visit 2) and healthy controls (HC; gray bars = visit 1, brown bars = visit 2). Analyses were limited to ROI that displayed significant effects at visit 1, and included the left superior corona radiata (SCR), the left uncinate fasciculus (UF), the left internal capsule (IC), the left corona radiata (CR), the genu (GNU), and the splenium (SPL). For the y-axis, the units of FA are dimensionless, whereas RD is equivalent to mm²/s.