Dear SPM-list
We tried some of your suggested and further compared our registered and normalized pictures. However, we're still puzzled on the normalisation to T1/EPI template.
For a reference I attached a ' compare registration' pic: the upper right picture is normalization using 'segmented' procedure, the middle right picture using a 'T1' normalization (they look approximately the same).
Both normalization appear ok, but given the T1 template (lower left picture), (especially..?) the visual cortex seems somewhat 'shrinked'
However, normalizing epi to epi template (see middle left picture) gives an accurate outer match of the brain.
We reoriented the 0, 0, 0 point in the T1 images to be at the Ant Com. Also realignment between mean-epi and T1 seems fine.
Any ideas on what the T1 vs EPI normalization difference is caused by?
Suggestions and comments are very much appreciated!
Bianca
|