For years, concussions were described as temporary disruptions in brain function that could not be seen on any medical test.

n this composite image of white matter pathways in the brains of infants at risk for autism, warmer colors represent higher fractional anistropy readings that were detected using diffusion tensor ...

Diffusion tensor imaging (DTI) tracts and cerebral blood vessels within the brain. DTI is an MRI‑based neuroimaging technique that makes it possible to estimate white matter tracts of the brain.