FIG. 4.

Radial and mean diffusivities in posterior corona radiata (PCR). Scatter plots show higher RD and MD values in TBI patients (red dots) compared to controls (blue triangles) bilaterally. Only 2 TBI patients had lesions within the left PCR (red dots with black outline in scatterplots, and white arrow, top middle MRI). Three-dimensional representations of the left (yellow) and right (blue) PCR ROIs are shown on an axial MRI (middle bottom panel). See Table 2 and text for corrected p values. ANCOVA, analysis of covariance; MD, mean diffusivity; MRI, magnetic resonance imaging; RD, radial diffusivity; ROI, region of interest; TBI, traumatic brain injury.