Preliminary research completed at Saint Louis University on military veterans with traumatic brain injury (TBI) showed that changes in brain tissue due to blast injury are apparent in brain images years after the blast. The study looked at data from diffusion tensor imaging, a type of highly sensitive magnetic resonance image (MRI), which was used to examine the way water moves throughout the brain’s white matter. Researchers noted that in the civilian population, cognitive issues related to mild TBI caused by concussion typically resolved within one to three months; however, these issues were more persistent for military patients.

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