Hi pcs_man
Welcome to NeuroTalk
.
This fairly technical article is the most recent that I can find about Diffusion Tensor Imaging in the context of PCS
Diffusion Tensor Imaging Findings in Post-Concussion Syndrome Patients after Mild Traumatic Brain Injury: A Systematic Review .
Echoing what Jo*mar wrote, there does not seem to be any evidence that it leads to improved treatment options.
Best wishes.