Dear Mark,
thank you for your answer. I sent somes images on your site: number 883422.
So I try to register "tdm_recal_spect.nii" (tdm resampled with my spect hmpao by flirt 6 dof) with my "irm.nii", by flirt 6 dof.
I tried different cost, and I found -cost mutualinfo wich permitt have better results; I obtained this image "tdm_recal_irm5.nii" when I use flirt 6 dof . But there is a huge discrepancy on bone.
My command is:
flirt -dof 6 -cost mutualinfo -ref irm.nii -in tdm_recal_spect.nii -out tdm_recal_irm5.nii
When I don't register spect and tdm before, I obtain image3:
flirt -dof 6 -cost mutualinfo -ref irm.nii -in tdm_reorient.nii -out tdm_recal_irm3.nii
I don't undersand why I have this problem with ct and mri .
Best regards,
marie
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