fyi,

The University of Utah had a 6 Tesla MRI almost 2 decades ago. It was used for research with the football team. It showed damage from even moderate or less concussions. The players became so concerned about getting any level of concussion that their play suffered. The athletic department discontinued the study to avoid further scaring the players. Unfortunately, the psychology department took over the MRI and did not have the funds and where-with-all to properly maintain it and the coil overheated and burned out

The challenge with high Tesla MRI's is the risk of showing damage to the non-concussed. That could make the positive MRI imaging of the concussed patient have little value.

There is a system with high accuracy rates. qEEG's have shown to be 97-98% accurate but have been discounted due to one irresponsible article in a medical journal over a decade ago. They are reasonably affordable and the equipment costs less than $3000.