Figure 6

Density histograms from initial CT images of TBI subjects. Notice that two histograms (severe TBI subjects and subjects with delayed cerebral edema) show different distributions from mild TBI subjects. Color-mapped CT images are from (A) a mild TBI subject, (B) a subject who developed delayed cerebral edema, and (C) a severe TBI patient. (D), (E), (F) are their corresponding raw CT images. CT, computed tomography; TBI, traumatic brain injury.