After TBI, secondary injury severity is difficult to determine. The objective of this study was to investigate the capacity of noninvasive APTw MRI to assess TBI injury in different brain regions and predict long-term neurobehavior outcomes. Fifty-five male and female rats were subjected to a controlled cortical impact with one of three different impactor depths to produce different degrees of TBI, and scanned on a 4.7 T horizontal bore animal imager. Our results suggest that APTw imaging can be used for detecting the level of inflammation and as a potential predictor of long-term outcomes from TBI.
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