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Great study & fair review. However, it missed the more important findings of its brain study part--many patients sustain a brain injury, and once the symptoms are gone, they go back to work or the athletic field or whatever they were doing, and potentially expose themselves to re-injury or a new brain injury or extension of the old asymptomatic injury. Because huge numbers of patients do not get the correct brain studies before and after brain injury! Any symptomatic brain can potentially become asymptomatic after a time, but that does not mean the brain has healed!...Normal MRI may show what this study shows, but it does NOT show injury to the source of the symptoms of many brain injuries-concussion and mTBI!
Those injuries demand better radiologic evaluation, and that is by either fMRI which measure vascular response to mTBI/concussion, diffusion tensor MRI (DTI) imaging, in depth cognitive studies. which also show damage to the axonal tracts between different part of the asymptomaticbrain, and/ or HDFT MRI-High density fiber tracking, which overcomes some of the difficulties of DTI interpretation. Radiologists must learn and apply these newer techniques lest they are remiss in appropriately diagnosing asymptomatic brain injuries!
It is incumbent upon us as physicians to do and learn the newest and best diagnostic tools in order to avoid further damage to our asymptomatic brain injured and mTBI/concussion suffering patients. What is more important--the cost and time spent in developing these newer and needed techniques or the cost of them?... I suggest that we decide on the side of our asymptomatic brain injured patients and remain true to our oath as physicians!....