Dear Freesufer experts,
I am wondering if it is possible to tell mri_vol2surf to ignore certain voxels in the src volume, for instance, by setting their intensity to -999.
I'm trying to project only gray matter voxels from a PET scan onto the fsaverage surface, but when I use an only-GM PET image as the src, the zeroed-out WM/CSF voxels are occasionally projected onto the surface (with --interp nearest). Any suggestions?
Thanks! Kate
Bump.
I'm interested in the answer to this question as well. Doug/Bruce, do you know?
-Derin
On May 29, 2012, at 8:43 PM, Kathryn I. Alpert wrote:
Dear Freesufer experts,
I am wondering if it is possible to tell mri_vol2surf to ignore certain voxels in the src volume, for instance, by setting their intensity to -999. I'm trying to project only gray matter voxels from a PET scan onto the fsaverage surface, but when I use an only-GM PET image as the src, the zeroed-out WM/CSF voxels are occasionally projected onto the surface (with --interp nearest). Any suggestions?
Thanks! Kate _______________________________________________ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edumailto: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.
What do you mean ignore? If you mask them out of the volume so that they are 0 (or -999), then they will be 0 or -999 in the output. doug
On 06/01/2012 12:25 PM, Derin J Cobia wrote:
Bump.
I'm interested in the answer to this question as well. Doug/Bruce, do you know?
-Derin
On May 29, 2012, at 8:43 PM, Kathryn I. Alpert wrote:
Dear Freesufer experts,
I am wondering if it is possible to tell mri_vol2surf to ignore certain voxels in the src volume, for instance, by setting their intensity to -999. I'm trying to project only gray matter voxels from a PET scan onto the fsaverage surface, but when I use an only-GM PET image as the src, the zeroed-out WM/CSF voxels are occasionally projected onto the surface (with --interp nearest). Any suggestions?
Thanks! Kate _______________________________________________ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu mailto: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.
Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
freesurfer@nmr.mgh.harvard.edu
-
Derin J Cobia -
Douglas N Greve -
Kathryn I. Alpert