Guang,

brainmask.auto.mgz (and all the volume files produced in the recon-all
stream) remain in native space.  you can add -nowsatlas after
-skullstrip to recon-all to see the results without the atlas (results
differ depending on the input).  the tal transforms are used only to
align the atlas, and for user display in tkmedit and tksurfer.

Nick

On Tue, 2009-08-11 at 08:56 -0500, Guang Zeng wrote:
> 
> 
> Hi, there,
> 
> In the skullstrip step, mri_em_register command is called and a
> talairach_with_skull.lta file is produced. 
> This lta file will be used in the following mri_watershed command. 
> 
> My questions are:
> (1) Once we got the brainmask.auto.mgz, which command we can use to
> inverse the talairach transform, 
> convert the coordinate to the original system?  
> 
> (2) How different it will be if no altas is used in the mri_watershed
> step?
> 
> 
> Thanks a lot!
> 
> Guang
> 
> 
> ______________________________________________________________________
> Get back to school stuff for them and cashback for you. Try Bing now.
> _______________________________________________
> 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