"Starr"

Do you know what Tesla level your MRI was ? 1.5 is the usual. Some places now offer 3 Tesla but it takes 5 or 6 T or more to see the microscopic damage common to concussions.

What kind of damage did they find ?

btw, DTI MRI does not show damage. It shows the changes in fluid flow that result from an injury. It is used to differentiate physiological damage causes symptoms from psychological symptoms.