Hi everyone,
we are trying to implement DTIPrep in our study. Unfortunately we are unsure of how to interpret the output of the Diffusion Gradient Check. 5-10% of subjects are excluded due to a mismatch in diffusion gradients in some dw-directions. What does that mean? When visually inspecting the images, we found no changes or artifacts. How should we proceed? Exclude these participants from analysis alltogether, exclude the affected directions or ignore the error in absense of observable artifacts?

Thanks in advance!
Susanne