Hi Freesurfer experts,

I am wondering if it is possible to remove the original labels after
extending the parcellation by 2mm into the WM for tractography? I don't
wish to have tractography run on both sets of labels considering the
algorithm would take into account the streamlines terminating at nodes
defined by the labels so it doesn't quite make sense to count streamlines
terminating at both the original label separately from the new label
extending into the WM.

I used the following command for growing the parcellation into WM:

mri_aparc2aseg --s subj --annot aparc --wmparc-dmax 2 --labelwm
--hypo-as-wm --o $SUBJECTS_DIR/$subj/mri/aparc+aseg+2mm.nii.gz

Would appreciate help and suggestions!


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