Hi,
I registered my native FA images to FMRIB58 template and the alignment was
very good. Next, I drew the masks on the template and I would like to
register them back to the native FA space. I used the following invwarp command:
invwarp --ref=../dti_FA.nii.gz
--warp=FA2_FMRIB58_inweight_stroke_nonlinear_transf.nii.gz
--out=FMRIB58_2_FA_inweight_stroke_nonlinear_transf.nii.gz
This only took about 30 min. When I use apply warp to regiter my FMRIB58
masks to the native space the masks come out very small, only a few voxels.
I tried using all three available interpolation methods and all three
produce fairly similar results. Could it be the issue of resolution? My
original FA is 2x2x2mm
Sincerely,
Anastasia
|