There's also mri_surf2vol. It won't flood fill, but it will create a
binary volume of the ribbon with --fillribbon

doug




Yasunari Tosa wrote:
> 
> Hi, Alex:
> 
> We have a program called "mri_surfacemask", which uses the surface to
> get the inside volume
> covered by the surface.   The outside is set to zero (the volume must be
> UCHAR).
> 
> If you need this, please let me know.
> 
> Tosa
> 
> Bruce Fischl wrote:
> 
> >On Mon, 14 Feb 2005, Alex Wade wrote:
> >
> >
> >
> >>I have recently started to use FS to generate cortical surfaces for
> >>boundary element modelling in EEG source localization. In particular I
> >>would like to use the pial surface generated by FS.
> >>I have three problems:
> >>
> >>1: I can only get FS to generate individual hemispheres. For the BEM, I
> >>need a single, connected, mesh for the entire brain. Is there a way to
> >>get this (perhaps by fooling FS into not disconnecting the hemispheres
> >>early in the segmentation process)?
> >>
> >>
> >
> >sorry, no easy way to do this.
> >
> >
> >
> >>2: The white/gray boundary mesh is topologically correct (no bridges /
> >>handles / holes etc..). Is the pial surface mesh also correct?
> >>
> >>
> >
> >yes, all the surfaces should have the same topology at the end (except the
> >?h.qsphere, which you don't have to worry about)
> >
> >
> >
> >>3: Is there a way to generate the volume inside the pial surface? That
> >>is - can I flood fill the pial surface in some way to extract the voxels
> >>that lie inside it as 3d volume?
> >>
> >>
> >
> >inside the entire surface? Or just between pial and white? There is
> >something to do the filling, but I can never remember what it is. Tosa:
> >what's it called?
> >
> >
> >cheers,
> >Bruce
> >
> >
> >
> >>Many thanks
> >>
> >>
> >>Alex
> >>
> >>A.R. Wade Ph.D.
> >>Associate Scientist
> >>The Smith-Kettlewell Eye Research Institute
> >>2318 Fillmore Street
> >>San Francisco, CA 94115
> >>
> >>tel. 415 345 2083
> >>fax. 309 416 6533
> >>
> >>_______________________________________________
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> >>
> >>
> >>
> >
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> >
> >
> >
> 
> --
> Yasunari Tosa, Ph.D.               Email: [EMAIL PROTECTED]
> NMR Ctr, Mass. General Hospital    TEL: 617-726-4050
> Building 149, 13th Street
> Charlestown, MA 02129
> USA
> 
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-- 
Douglas N. Greve, Ph.D.
MGH-NMR Center
[EMAIL PROTECTED]
Phone Number: 617-724-2358 
Fax: 617-726-7422
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