SPM should take care of voxel-sizes, providing they are set correctly
in the headers. Just use the data as is - providing the orientations
and position are reasonably close to those of MNI space (within about
30 cm and 15 degrees). You can use the Check Reg button, selecting
your image and one of the MNI-space images released with SPM (eg from
the "canonical" folder).
Best regards,
-John
On 20 February 2013 10:14, Benjamin Albrecht <[log in to unmask]> wrote:
> Dear SPM list,
>
> I have a question regarding the voxel sizes. I want to preprocess data from
> a 3 Tesla Trio. Therefore I have EPI images with a voxel size 3*3*3 mm and a
> MPRAGE image with voxel size 1*1*1 mm. How can I normalize or segment the
> data also with the template image with a voxel size of 2*2*2 mm? Can I
> recalculate the images to the same voxel size or what should I do?
>
> Thanks
> Benjamin
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