On 3/4/19 10:11 AM, Hengameh Marzbani wrote:
>
>         External Email - Use Caution
>
> Hi Freesurfers,
>
> I want to do group analysis on four groups and use the volume values 
> in aseg,stats.
> 1- Is it correct that each subcortical segmentation is based on a 
> "volumetric segmentation atlas" created by Freesurfer?
Yes
> 2- Are the volume values expressed in the space of this atlas?
No, they are in native space units.
> 3- Can I compare these absolute values between 4 groups ?
Yes.
> 4- Should I apply correction to the volume measures by eTIV (also 
> called ICV)?
Probably so, but you should know better than us
>
>
> Thanks you in advance!
>
> Best regards,
> Hengameh
>
> _______________________________________________
> Freesurfer mailing list
> Freesurfer@nmr.mgh.harvard.edu
> https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer


_______________________________________________
Freesurfer mailing list
Freesurfer@nmr.mgh.harvard.edu
https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer

Reply via email to