Hi list,
I have a registration problem. We are doing a fMRI study including 2 runs for
each subject. We got sagittal structural image and axial fMRI data, and we
set full search and 12 DOF for rigistration from fMRI to structural image, full
search and 12 DOF for registrition from structural image to standard image.
Checking the results, we found that the two basic results for the two runs
were OK, however, when we combined the two runs with fixed effects, the
activated areas were beyond the brain image by a few millimeters, which was
very obvious for OFC and occipital area. We tried to convert the sagittal
structural image to axial image, then used normal search and 12 DOF for
rigistration from fMRI to structural image, normal search and 12 DOF for
registrition from structural image to standard image, still got similar results. Did
you guys meet problems like this before? I need some suggestion to relieve
the anxiety which bothers me so much recently.
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