I am trying to register both an FOD.mif file (obtained using the dwi2fod command) and its relative tractography result (.tck file) to the MNI template with 1mm resolution. The data are from the Human Connectome Project so the deformation field is already provided (standard2acpc_dc.nii.gz and acpc_dc2standard.nii.gz).
I have already tried to follow the procedure suggested in this post:
but it yields strange results. First, the resulting tracts do not match the MNI template. Moreover, when applying exactly the same method on the FOD image (but using “mrtransform” instead of “tcktransform”), the image is being deformed but it still doesn’t match the template and the resolution is 2mm.
I was wondering if there is any standard procedure that should be followed to register FOD data, as well as tracts, to the MNI template with 1mm resolution.
Thank you very much for your help!