we had the same problem and our solution was to flip the images in
native space and then normalize them to a symetrical template (lest the
non-flipped images are preferred during spatial normalization). I will
send you the pdf off-list. Simply flipping the results will not be
optimal (even if you trick SPM into accepting the images) as the brain
is not symmetrical. This can also be done using unified segmentation, by
specifying symmetrical priors, and for us, this did the job rather nicely.
Hope this helps,
Marine Dupuy wrote:
> Hi everyone,
> I am working on 11 fMRI patients with SPM5 (Matlab 7.3).
> 8 of my patients have a lesion in the right hemisphere and 3 in the left
> I am doing the 2nd level of analyze and I would like to return the scans
> of my 3 patients to have all my lesions in the same side for the analyze.
> I tried to flip my con.map with display by changing the x axe by x = -1
> and reorient images and coregister but when I want to do the specify 2nd
> level it crash.
> Is anyone has any idea to put all my lesion in the same side ?
> Thank you,
> Marine Dupuy
Marko Wilke (Dr.med./M.D.)
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Universitäts-Kinderklinik University Children's Hospital
Abt. III (Neuropädiatrie) Dept. III (Pediatric neurology)
Hoppe-Seyler-Str. 1, D - 72076 Tübingen
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