Just run
recon-all -s subject -segstats
and the new ICV should appear in the aseg.stats file

On 11/13/2018 12:08 PM, Gamaliz wrote:
>
>         External Email - Use Caution
>
>
> I have a fewT1 scans that have obvious incorrect registration
> to mni_average_305. I opened tkregister2 --s subjid --fstal --surfs
> and I am able to fix the registration, but I wonder how to use the ew
> registration to recalculate the new ICV. I am interested in doing it
> with Freesurfer (as I know I could get the matrix and calculate the
> determinant. I guess I will have to save the transform and rerun some
> of Freesurfer command to overwrite the old icv value?
>
>
> Thanks
>
>
> Gabriel
>
>
>
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