[Freesurfer] skull-scalp volume extraction

2009-07-22 Thread Tommaso De Marco
Hi all, I have to implement a Difference element method on a volume extracted from a mri. Using freesurfer I am able to extract the volume file for the brain (ie. $h.ribbon), but I need also the volume files for the skull and for the skin. I have seen that the flag -surf exits in the watershed

Re: [Freesurfer] mesh size question

2008-10-23 Thread Tommaso De Marco
qslim http://graphics.cs.uiuc.edu/~garland/software/qslim.html probably there are more. Martin On Wed, 2008-10-22 at 14:48 +0200, Tommaso De Marco wrote: Hi all, I'm using the mri_watershed instruction to extract the skull and skin mesh, because I'm using them in a boundary element

[Freesurfer] mesh size question

2008-10-22 Thread Tommaso De Marco
Hi all, I'm using the mri_watershed instruction to extract the skull and skin mesh, because I'm using them in a boundary element method, but the dimensions of these meshes are too big for my application (20480 faces and 10242 vertices for each ones). Do you know if there is a way to define a

[Freesurfer] Anatomical question

2008-10-07 Thread Tommaso De Marco
Hi all, sorry for my ignorance in anatomy, but I'm an engineer, not a physician. I would know what is the relationship in freesurfer between the gray matter and the cortical ribbon. I load in a matlab environment the ribbon.mgz file, and I see that this surrounds the white matter defined by t

[Fwd: Re: [Freesurfer] Volume processing question]

2008-10-06 Thread Tommaso De Marco
least I can write a matlab code to read them, but I don't know how (and what kind of) informations are stored. Regards Tommaso De Marco Doug Greve wrote: Can you give more details as to what you are trying to do? Tommaso De Marco wrote: Dear Doug Greve, I have tried to use mri_surf2vol

[Fwd: Re: [Freesurfer] Volume processing question]

2008-10-06 Thread Tommaso De Marco
s file are associated to the regions of the head? Regards Tommaso De Marco Doug Greve wrote: You can use mri_surf2vol to create a mask. Is that what you mean? doug On Tue, 30 Sep 2008, Tommaso De Marco wrote: Hi, I'm a freesurfer user beginner. I need to discretize the gray mat

[Freesurfer] Volume processing question

2008-09-30 Thread Tommaso De Marco
alled $h.volume; what kind of information is stored in these files? Is it possible to open them in a matlab environment or with tksurfer? Regards Tommaso De Marco ___ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvar