Hi Raouia,
> I would like to show you the output of my coregistration step. It seems
> strange and I don't know what shall I do in this case.
Well, the output looks like a completely failed attemt to coregister
data that does not seem to have much in common. I have no good
suggestions on what to change as I do not know what you started out
with. From what I can see in the image you provided, the image on the
left looks like it could be a T1 dataset of a human brain, while the one
on the right looks like an image with a very restricted field of view
(it almost looks like a rat brain to me :)
> In fact, there is no errors in SPM. (see attached the file)
Technically, it worked, and the algorithm "successfully" minimized the
differences between the images. Unfortunately, that does not mean that
the results make sense... coregistration is meant to co-register
different image modalities from the same subject (e.g., EPI and T1). If
the one is only partly contained in the other (e.g. 2 slices of an EPI
image and a whole-head T1), then the overlap may not be sufficient to
obtain a meaningful solution.
Best,
Marko
--
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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
Tel.: (+49) 07071 29-83416 Fax: (+49) 07071 29-5473
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