Re: [Freesurfer] optic nerve inlcuded as pial matter

2012-02-20 Thread Julia Hill
Randwick Sydney NSW 2031 AustraliaT +61 2 9399 1268  From: " andreia " <_andre...@sapo.pt>To: "Bruce Fischl" Cc: "Julia Hill" , freesurfer@nmr.mgh.harvard.eduSent: Friday, 17 February, 2012 1:01:06 AMSubject: Re: [Freesurfer] optic nerve inlcuded as pial matt

Re: [Freesurfer] optic nerve inlcuded as pial matter

2012-02-16 Thread _andreia_
Since it is such a straightforward correction, I've been making it because I thought that it would have some effect (though tiny). Thanks! Andreia Citando Bruce Fischl : > yes, exactly. it will have a tiny effect on total surface area, but > that includes noncortical regions anyway > On Thu,

Re: [Freesurfer] optic nerve inlcuded as pial matter

2012-02-16 Thread Bruce Fischl
yes, exactly. it will have a tiny effect on total surface area, but that includes noncortical regions anyway On Thu, 16 Feb 2012, _andre...@sapo.pt wrote: Ah ok! :) So it won't affect any stats? Anyway, not correcting this will make the inflated surface to have a prominence, right? In that

Re: [Freesurfer] optic nerve inlcuded as pial matter

2012-02-16 Thread _andreia_
Ah ok! :) So it won't affect any stats? Anyway, not correcting this will make the inflated surface to have a prominence, right? In that case it will only look better for results' displaying. Andreia Citando Bruce Fischl : > if they are coincident then it is accurately detected as > non-

Re: [Freesurfer] optic nerve inlcuded as pial matter

2012-02-16 Thread Bruce Fischl
if they are coincident then it is accurately detected as non-cortical and won't affect any thickness/volume corrections, so fixing it is really just aesthetic. cheer Bruce On Thu, 16 Feb 2012, _andre...@sapo.pt wrote: Hi Julia, I usually remove the voxels from brainmaks.mgz for the pial ed

Re: [Freesurfer] optic nerve inlcuded as pial matter

2012-02-16 Thread _andreia_
Hi Julia, I usually remove the voxels from brainmaks.mgz for the pial edits but also from wm.mgz. If you deselect the button of the pial surface in tkmedit, you will see that the white matter surface is coincident with the pial, so you also need to correct that volume. With wm.mgz as auxi

[Freesurfer] optic nerve

2006-04-26 Thread Lars M. Rimol
Dear all, Do you recomend to routinely erase the optic nerve (regardless of how the wm surface looks), and where in the work flow do you recomend to do it? (We do it as part of the quality control after autorecon1 now.)-- yours,LMR ___ Freesurfer mailin