The signature injury from the 'War on Terror' is mTBI (concussion, PCS). So many soldiers got mTBI and the powers that be realized conventional mainstream diagnostics and treatment were of no use for rehabilitation. The private sector was brought in to try and solve the problem (this is all in the US) with alternative treatments. Their brain injury diagnostics were based on car industry and sports industry research. Both of these systematically simulated TBI injuries on animals from rats to apes and tested different imaging techniques. Then they did postmortem histopathological analysis, looking at brain sections under a microscope to confirm the damage. Following that they looked at the brains of people who had mTBI but had died of other causes and found damaged axons. Then they used DTI on live patients with mTBI and found damaged axons.
Doing tests with different scanning techniques they found CT scans identified fluid in the brains of 90% severe TBI, 60% moderate TBI and 7% mild TBI. MRI scans are similar. Diffusion tensor imaging (DTI) scans showed all categories of TBI have axonal injuries that are not picked up on CT or MRI.
The sport industry pioneered sensors in helmets (American football) and modeled the impact characteristics of players that got concussions using computer technology. Adding both the car and sports industry research together a whole new picture of mTBI emerged. Axonal injury reduces the connections between the sensory, memory and cognitive regions of the brain. Damage to the head causes visual and vestibular problems.
Private optometrists, sports physiotherapists and chiropractors can solve visual and vestibular issues. Neuroplastic cognitive therapy such as in the Arrowsmith program corrects sensory, emotional and cognitive brain dysfunctions. Preliminary brain functional (EEG, fMRI) scans have been produced to indicate this.
It seems strange that many top sports players and car drivers recover from 'concussions' relatively quickly but normal folk suffer for years. The answer may be that there are two different approaches for treating TBI.
Hopefully the ABI Bill is influenced by results from the 'War on mTBI.'