External Email - Use Caution Sorry I mean the talairach transform matrix in /mri/transform/talairach.xfm.
In this way, no matter how the brain is aligned when the data is collected, by translating it to a talairach coordinate system, the brain will be aligned to ac-pc at y-axis, the longitudinal fissure is aligned to z-axis, so x-axis is fixed. Then x=0 is the center of left and right hemisphere. I checked the results it seems ok, but just want to make sure the logic is correct. Many thanks! On Tue, 1 Sep 2020 at 21:05, Douglas N. Greve <dgr...@mgh.harvard.edu> wrote: > > > > > > > > > What is TLRC? Otherwise, it sounds reasonable. I'd definitely look > > at the image to make sure:) > > > > > > > On 9/1/2020 12:11 PM, 刘梦醒 wrote: > > > > > > > > > External Email - Use > > Caution > > > Thanks! > > I have a work-around solution but want to hear your comment > > on it. > > > > > > > > I use the TLRC transform matrix in mri/transform to > > translate the coordinates in native to TLRC, so that the > > origin set to anterior commisure. Then I cut the brain stem to > > left and right, by x>0 and x<0, then I use the inverse > > matrix to translate the left and right brain stem back. > > > > > > > > How do you feel about this? > > > > > > > > Many thanks! > > > Mengxing > > > > > > > > > > > > > > > On Tue, Sep 1, 2020 at 4:42 PM > > Douglas Greve <dgr...@mgh.harvard.edu> wrote: > > > > > >> >> Not that I know of, sorry >> >> >> >> >> >> On 9/1/20 10:20 AM, 刘梦醒 wrote: >> >> >> >> >> >> >> External >> >> Email - Use Caution >> >> >> Hi Freesurfer group, >> >> >> >> >> >> >> For some reason, I have to use the left and right >> >> brain stem separately. >> >> >> I wonder if there is one way to have a midline, to >> >> cut the brain stem into Left and Right? >> >> >> >> >> >> >> >> Many thanks, >> >> >> Mengxing >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> _______________________________________________ >> >> 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 > > > > > > > > > > > _______________________________________________ > > 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
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