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Hi, In a Freesurfer help webpage it says that to convert an image (eg brain.mgz) from freesurfer to anatomical native space (eg rawavg.mgz) we should use mri_vol2vol, but for a segmentation (aseg.mgz) we should use mri_label2vol. I converted the aseg.mgz of bert using both vol2vol and label2vol and found no difference - The resulting output images look exactly the same. Is there really an advantage of using label2vol instead of vol2vol? Thanks! Sam
Are they exactly the same? Try mri_diff file1.mgz file2.mgz I would not expect them to be all that different, just a few voxels here and there
On 4/16/19 3:47 PM, Sam W. wrote:
External Email - Use Caution
Hi, In a Freesurfer help webpage it says that to convert an image (eg brain.mgz) from freesurfer to anatomical native space (eg rawavg.mgz) we should use mri_vol2vol, but for a segmentation (aseg.mgz) we should use mri_label2vol. I converted the aseg.mgz of bert using both vol2vol and label2vol and found no difference - The resulting output images look exactly the same. Is there really an advantage of using label2vol instead of vol2vol? Thanks! Sam
Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
External Email - Use Caution
Thank you Douglas. So that means I can basically use either one for freesurfer to native space conversion, is that right? Is there any case in which label2vol should definitely be used instead of vol2vol? Best regards, Sam
On Tue, Apr 16, 2019 at 10:12 PM Greve, Douglas N.,Ph.D. < DGREVE@mgh.harvard.edu> wrote:
Are they exactly the same? Try mri_diff file1.mgz file2.mgz I would not expect them to be all that different, just a few voxels here and there
On 4/16/19 3:47 PM, Sam W. wrote:
External Email - Use CautionHi, In a Freesurfer help webpage it says that to convert an image (eg brain.mgz) from freesurfer to anatomical native space (eg rawavg.mgz) we should use mri_vol2vol, but for a segmentation (aseg.mgz) we should use mri_label2vol. I converted the aseg.mgz of bert using both vol2vol and label2vol and found no difference - The resulting output images look exactly the same. Is there really an advantage of using label2vol instead of vol2vol? Thanks! Sam
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
label2vol is probalby a little more accurate
On 4/16/19 7:47 PM, Sam W. wrote:
External Email - Use Caution
Thank you Douglas. So that means I can basically use either one for freesurfer to native space conversion, is that right? Is there any case in which label2vol should definitely be used instead of vol2vol? Best regards, Sam
On Tue, Apr 16, 2019 at 10:12 PM Greve, Douglas N.,Ph.D. <DGREVE@mgh.harvard.edu mailto:DGREVE@mgh.harvard.edu> wrote:
Are they exactly the same? Try mri_diff file1.mgz file2.mgz I would not expect them to be all that different, just a few voxels here and there On 4/16/19 3:47 PM, Sam W. wrote: > > External Email - Use Caution > > Hi, > In a Freesurfer help webpage it says that to convert an image (eg > brain.mgz) from freesurfer to anatomical native space (eg rawavg.mgz) > we should use mri_vol2vol, but for a segmentation (aseg.mgz) we should > use mri_label2vol. I converted the aseg.mgz of bert using both vol2vol > and label2vol and found no difference - The resulting output images > look exactly the same. Is there really an advantage of using label2vol > instead of vol2vol? > Thanks! > Sam > > _______________________________________________ > 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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freesurfer@nmr.mgh.harvard.edu
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Greve, Douglas N.,Ph.D. -
Sam W.