2 Sep
2020
2 Sep
'20
1:32 p.m.
No, sorry
On 9/2/2020 11:28 AM, 刘梦醒 wrote:
External Email - Use Caution
Thanks Doug,
Is there a function in freesurfer that allows to cut a ROI by the coordinates?
On Wed, Sep 2, 2020 at 4:15 PM Douglas N. Greve <dgreve@mgh.harvard.edu mailto:dgreve@mgh.harvard.edu> wrote:
yes, seems good On 9/2/2020 2:40 AM, 刘梦醒 wrote: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 <dgreve@mgh.harvard.edu <mailto:dgreve@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 <dgreve@mgh.harvard.edu <mailto:dgreve@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 <mailto:Freesurfer@nmr.mgh.harvard.edu> https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer_______________________________________________ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu <mailto:Freesurfer@nmr.mgh.harvard.edu> https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer _______________________________________________ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu <mailto:Freesurfer@nmr.mgh.harvard.edu> https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer_______________________________________________ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu <mailto:Freesurfer@nmr.mgh.harvard.edu> https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer _______________________________________________ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu <mailto:Freesurfer@nmr.mgh.harvard.edu> https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer_______________________________________________ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu <mailto:Freesurfer@nmr.mgh.harvard.edu> https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
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