Hi,
we are trying to register fmri FEAT data (example_func.nii) to the
anatomical scan (processed in Freesurfer) using bbregister to opt. the
affine registration before running FNIRT.
However, the orientation of the registered image is flipped around and is
incorrect after applying bbregister.
We have tried:
1) bbregister --s subj_501 --mov example_func.nii.gz --reg register.dat
--init-header --bold --o example_func2highres-fs.nii
2) bbregister --s subj_501 --mov example_func.nii.gz --reg register.dat
--init-fsl --bold --o example_func2highres-fs.nii
3) bbregister --s subj_501 --o example_func2highres-fs.nii --feat
"myfeatdirectory"
4) tkregister2 --mov example_func.nii --regheader --reg tkreg.dat (this one
looks correct)
followed by
bbregister --s subj_501 --mov example_func.nii.gz --reg register.dat
--init-reg tkreg.dat --bold --o example_func2highres-fs.nii
5) reorienting to match the highres:
fslorient -swaporient example_func
fslswapdim example_func x -y z example_func_swap (correct orientation)
followed by
bbregister --s subj_501 --mov example_func_swap.nii.gz --reg register.dat
--init-fsl --bold --o example_func_swap2highres-fs.nii
with the output being flipped in wrong orientation for all options.
We would greatly appreciate if you have any suggestions for how to overcome
this problem!
Cheers/Sincerly/All best
Erlend Hodneland
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