Hi FreeSurfer experts,
Is there a way to move annotations from the same subject at one timepoint to another? I've tried doing this using a discrete-valued surface and using seg2annot, but, when I convert surfaces there are vertices between regions whose values are averages of bordering vertices. This ruins the continuity of each individual label with little islands of various values. Is there a mri_annot2annot or equivalent? Thanks!
Andrew Dumas
Try using mri_surf2surf with the --sval-annot flag.
doug
On 4/5/11 11:20 AM, Andrew Dumas wrote:
Hi FreeSurfer experts,
Is there a way to move annotations from the same subject at one timepoint to another? I've tried doing this using a discrete-valued surface and using seg2annot, but, when I convert surfaces there are vertices between regions whose values are averages of bordering vertices. This ruins the continuity of each individual label with little islands of various values. Is there a mri_annot2annot or equivalent? Thanks!
Andrew Dumas
Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
Thanks, Doug-- that's what I was looking for!
Andrew
On Tue, 2011-04-05 at 11:51 -0400, Douglas Greve wrote:
Try using mri_surf2surf with the --sval-annot flag.
doug
On 4/5/11 11:20 AM, Andrew Dumas wrote:
Hi FreeSurfer experts,
Is there a way to move annotations from the same subject at one timepoint to another? I've tried doing this using a discrete-valued surface and using seg2annot, but, when I convert surfaces there are vertices between regions whose values are averages of bordering vertices. This ruins the continuity of each individual label with little islands of various values. Is there a mri_annot2annot or equivalent? Thanks!
Andrew Dumas
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
Hi Andrew,
not sure if I understand.
The surfaces in the longitudinal directories across time (within subject) are in registration, so you should be able to use the same annotation for all time points.
Martin
On Tue, 2011-04-05 at 11:20 -0400, Andrew Dumas wrote:
Hi FreeSurfer experts,
Is there a way to move annotations from the same subject at one timepoint to another? I've tried doing this using a discrete-valued surface and using seg2annot, but, when I convert surfaces there are vertices between regions whose values are averages of bordering vertices. This ruins the continuity of each individual label with little islands of various values. Is there a mri_annot2annot or equivalent? Thanks!
Andrew Dumas
Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
freesurfer@nmr.mgh.harvard.edu