Dear Freesurfer Experts,

 

I have some experience editing the pial surface with tkmedit. (As in this wiki page: https://surfer.nmr.mgh.harvard.edu/fswiki/FsTutorial/PialEdits_tktools )

As I recall, this process can be time consuming, because the regeneration of the peel needs to be sent back through the processing stream.

Similarly, editing subcortical structures through tkmedit or freeview also requires you to send it back through recon-all ( https://surfer.nmr.mgh.harvard.edu/fswiki/TkMeditGuide/TkMeditWorkingWithData/FreeviewSegmentations )

 

If I am only interested in the volumetric values created through stats2table, is there a quicker way to recalculate the values I have just manually edited?

As I understand it, stats2table just adds up the voxels from the specific labels in the aparc+aseg segmentation, so if I manually edit the voxels of that segmentation and save it, wouldn’t I just need some command to recount all those voxels to update the table?

I just see no reason for having to spend more time with recon-all if I only need such a simple adjustment. Am I wrong?

 

If I am, then I would also like to know which method, freeview or tkmedit, would allow me to edit more quickly, as I have only used tkmedit in the past.

 

Hope your week has been good to you,

Jeff