Hi everyone I am trying to parcellate the thalamus using 6 cortical masks and omatrix1 option.How can I order the fdt_matrix1.dot file afterwards? I guess I can still use kmeans as in matrix2 but without running cross correlation this time? Thanks a lot Francesco Sammartino On Jan 30, 2018 4:03 AM, "Dave Yas" <[log in to unmask]> wrote: Hi, I am getting a blank FA file after running DTIFIT on all my subjects. I ran BET, then Eddy current, then DTIFIT. The previous steps were okay, but I had a problem with this step (DTIFIT). I got no error messages everything ran smoothly which is why i don't know what hints to give. Can someone help please? Dave