There is not a single command to do it, but you could do something like

mri_binarize --i aparc+aseg.mgz --wm --o wmmask.mgz # mask of white matter
mri_binarize --i seg.mgz --match 17  --o mask17.mgz # mask of seg 17
mri_binarize --i seg.mgz --match 17 --dilate 2 --o mask17.dil2.mgz # 
mask of seg 17 dilated by 2 voxels
fscalc wmmask.mgz and mask17.dil2.mgz --o mask17.dil2.wm.mgz  # seg 17 
inside WM
mri_concat mask17.mgz mask17.dil2.wm.mgz  --sum --o mask17+wm.mgz # seg 
17 plus dilation into WM

doug


On 11/04/2013 11:38 AM, Corinna Bauer wrote:
> Hello all,
> Is there a way to expand a GM label into the white matter by n voxels?
>
> Corinna
>
>
> _______________________________________________
> Freesurfer mailing list
> Freesurfer@nmr.mgh.harvard.edu
> https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer

-- 
Douglas N. Greve, Ph.D.
MGH-NMR Center
gr...@nmr.mgh.harvard.edu
Phone Number: 617-724-2358
Fax: 617-726-7422

Bugs: surfer.nmr.mgh.harvard.edu/fswiki/BugReporting
FileDrop: https://gate.nmr.mgh.harvard.edu/filedrop2
www.nmr.mgh.harvard.edu/facility/filedrop/index.html
Outgoing: ftp://surfer.nmr.mgh.harvard.edu/transfer/outgoing/flat/greve/

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


The information in this e-mail is intended only for the person to whom it is
addressed. If you believe this e-mail was sent to you in error and the e-mail
contains patient information, please contact the Partners Compliance HelpLine at
http://www.partners.org/complianceline . If the e-mail was sent to you in error
but does not contain patient information, please contact the sender and properly
dispose of the e-mail.

Reply via email to