Hi Maurizio

the orig.mgz has been converted to 1 byte/pixel and 256^3 1mm isotropic.
You can use mri_convert to go back to your original data space via:


mri_convert -rl orig/001.mgz <input volume> <output volume>

cheers
Bruce


On Tue,
18 Dec 2018, Maurizio Bergamino wrote:

>
>         External Email - Use Caution        
>
> Hello,I am trying to run a VBM analysis by using the white matter and the grey matter masks from
> Freesurfer, because, often, other tools are not able to calculate a correct white matter and grey matter
> masks.
> When I have these masks, I have to apply them to my original T1 images. However, the original T1 is in
> different space. I can resample the ROIs (WM and GM) in order to apply them to my original T1, but my
> question is:
> Can I use the orig.mgz from Freesurfer as my T1 for VBM, or does it have different intensity from my real
> T1 acquisition? 
>
> Thanks,
> Maurizio
>
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