Hi Matt,
you could use mri_surf2surf to map the fsaverage surface to any subject. We always avoid doing this as we want uniform sampling in the subject's space, and were willing to make the engineering more difficult to preserve this.
cheers Bruce
On Tue, 2 Mar 2010, Douglas N Greve wrote:
Oh, that's not such an easy thing to do. We can only map values from one subject to another. I know what you are describing, and it would be nice to have. I'm not sure how possible it is as the density of the nodes changes from subject to subject at various locations in order to reflect the anatomy. I don't know if one surface will work for this (but maybe if it is higher res). Bruce might have more insight.
doug
Matt Glasser wrote:
Hi Doug,
Thanks for your response. How does one go about getting registered white matter surfaces then? I would like all of the surfaces to be registered so that they have the same number of nodes in the same places across subjects.
Thanks,
Matt.
-----Original Message----- From: Douglas N Greve [mailto:greve@nmr.mgh.harvard.edu] Sent: Tuesday, March 02, 2010 12:01 PM To: matt@ma-tea.com Cc: freesurfer@nmr.mgh.harvard.edu Subject: Re: [Freesurfer] Application of Default Surface Based Registration to Surfaces Other than the Sphere
I'm not sure what you mean. When the sphere.reg is registered across subjects, it is sufficient to register the wm surfaces.
doug
Matt Glasser wrote:
Hi,
I am wondering if there is a way to apply the default surface based registration that is done during recon-all to surfaces other than the sphere so that the nodes are all lined up? I am wanting to have registered white matter surfaces that I can map data from the volume to the surface to and then average across subjects.
Thanks,
Matt.
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