Fig. 4.

Groups comparisons of [¹⁸F]-AV45 SUVR between clinical groups and healthy group. A. TBI vs. healthy controls, B. TBI_PTSD vs. healthy control, and C. PTSD vs. healthy control. Red-yellow means higher means higher amyloid in clinical groups while blue-green means higher amyloid in healthy controls. Difference maps were calculated using unpaired t-test amyloid in clinical groups and blue and green test and results were corrected using cluster-based correction (p < 0.05, Z > 2.3, cluster >40 voxels). (For interpretation of the references to color in this figure legend, the reader is referred to the web version of this article.)