Brain images taken from hundreds soldiers diagnosed with mild traumatic brain injuries suggest that methods for diagnosing concussions are inadequate in detecting damage. The results, part of the largest-ever imaging study of traumatic brain injury in the military, provide evidence that even brain injuries commonly classified as mild may lead to long-lasting damage.
Researchers at Walter Reed National Medical Military Center observed abnormalities in the white matter — the part of the brain responsible for transmitting signals between different regions — of more than half the participants, most of whom had been diagnosed with at least one concussion. Gerard Riedy, a neuroradiologist at Walter Reed who led the research, says the large number of abnormalities seen in this study was surprising, and it undermines the conventional wisdom that a person with mild traumatic brain injury should have normal brain images. Read more...
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