Hi Leonardo, I am interested in doing something very similar, in addition to combining the left and white white matter surfaces I want to remove the surfaces for the deep brain nuclei. I haven't really started this project so I'm not sure how it will turn out but one of the things i am looking into is using the gnu gts library ( http://gts.sourceforge.net/gallery.html ). it seems to support unions as well as intersections etc.
On issue i foresee is that I'm not sure how close the rh/lh surfaces are at points were they actually meet so a simple union might not work. I'll let you know how things progress. -Luke On 12/31/2010 09:52 AM, Bruce Fischl wrote: > Hi Leonardo, > > we don't generate such a surface by default although we have created them > on occasion. There's no standard procedure for doing so. It would be easy > to create one that isn't topologically correct (e.g. run mri_mc on the > white matter of the aseg), but harder to create one that is. > cheers > Bruce > > > On Fri, 31 Dec 2010, Leonardo Barbosa wrote: > >> Hi, >> >> I'm trying to save the white matter surface as a gifti file so I can >> use it outside the freesurfer to implement an EEG dipole fitting, but >> I'm not sure if this is the best way to do it. I searched old posts in >> the list, but didn't find an answer. >> The problem is how to export the whole cortex, and not only one hemisphere. >> >> I'm using >> >> mris_convert subjects/subj1/surf/lh.white ~/subj1.lh.white.gii >> mris_convert subjects/subj1/surf/rh.white ~/subj1.rh.white.gii >> >> and trying to mix the two surfaces inside my program, but I guess it's >> not right, because the middle of the brain is opened. I have two >> closed surfaces, and I would like to have one close mesh, without >> creating new faces and ignoring vertices in the middle. >> >> Sorry i this is confusing, but the question is: Can I export one >> closed surface of the whole brain with freesurfer? >> >> Thanks in advance for any help... and Happy New Year! >> >> Leonardo Barbosa >> www.if.usp.br >> _______________________________________________ >> 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 > > > 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
