Dear John and dear Experts,
I acquired functional images (EPI) with an isotropic voxel size 3.5 x 3.5 x
3.5 and a slice gap equal to 0.5 mm. When I use MRIcro or SPM Display
utility to display these images I get a no-isotropic voxel size 3.5 x 3.5 x
4. My questions are:
1) Do MRIcro and SPM compute a new voxel size as 3.5 x 3.5 x (3.5+0.5)?
2) What should I specify in Normalise-Write options-Voxel sizes in spm5 (or
in Defaults for writing normalised in spm2)? 2 x 2 x 2 (default) or 3.5 x
3.5 x 3.5 or 3.5 x 3.5 x 4?
3) What should I specify in Normalise-Write options-Bounding box in spm5 (or
in Defaults for writing normalised in spm2)? Are default values ok?
Thank you for your invaluable support.
Federico.
--
No virus found in this outgoing message.
Checked by AVG Free Edition.
Version: 7.5.432 / Virus Database: 268.15.26/594 - Release Date: 20/12/2006
15.54
|