Hi,

I'm hoping to get some clarity on the gradient failed result under diffusion information that I'm receiving for most of the DWI files I'm processing. This was addressed in a previous forum post with the response being, "The error stems from the mismatch in gradients between the files. I.e. if the DWI file that you use to create the default protocol has different gradients from the DWI that you are QC\'ing then DTIPrep will raise that as an issue. Simply turn off the diffusion gradient information check and DTIPrep will not check that the protocol and the DWI have to have the same gradients." Could you explain why this information check is irrelevant? Or is it only irrelevant in certain cases?

Also, the interlace correlation parameters for every gradient and some of the interlace translation parameters are in red. Does this indicate an error? If so, why were these gradients still included? I've attached a picture for reference.

I'm using the default protocol with the exception of the brain mask settings.

Thank you!
Skylar