Hi,

Just as a follow up. It is actually not uncommon for the gradient directions to be encoded according to the patient position rather than the scanner coordinate system. As such there is nothing wrong in having a different set of diffusion gradient coordinates for each subject (they are simply rotated according to the patient position, with same number of directions and same b-values).

In this case, would it be possible to know how to change the protocol file on the command line? Or is it still not an option?

Thank you,

Michael