[Fwd: Re: [Freesurfer] total brain volume]

2007-02-06 Thread Derin Cobia
Not sure if this went through the first time yesterday, here it is again. Thanks. I've noticed that the gray matter volume output from mris_anatomical_stats (lh) vs. mris_volume (lh.pial) differs. Am I missing something? Do I need to run mris_volume for a different surface? Thanks. -Derin

Re: [Fwd: Re: [Freesurfer] total brain volume]

2007-02-06 Thread Bruce Fischl
you would need to subtract the ?h.white volume from the ?h.pial to get gm volume On Tue, 6 Feb 2007, Derin Cobia wrote: Not sure if this went through the first time yesterday, here it is again. Thanks. I've noticed that the gray matter volume output from mris_anatomical_stats (lh) vs. mris_v

Re: [Fwd: Re: [Freesurfer] total brain volume]

2007-02-06 Thread Derin Cobia
Then is there a reason to use mris_volume when I can just do mris_anatomical_stats and forget the math? So, if I take the ?h.pial volume then add in the subcortical structure volumes from aseg.stats (as you mentioned earlier) then that would give me the estimated whole brain volume? Thanks Bruce!

Re: [Fwd: Re: [Freesurfer] total brain volume]

2007-02-06 Thread Bruce Fischl
is whole brain volume all you care about? On Tue, 6 Feb 2007, Derin Cobia wrote: Then is there a reason to use mris_volume when I can just do mris_anatomical_stats and forget the math? So, if I take the ?h.pial volume then add in the subcortical structure volumes from aseg.stats (as you menti

Re: [Fwd: Re: [Freesurfer] total brain volume]

2007-02-06 Thread Derin Cobia
For one of our projects. We're using cortical gray matter for another (which I wanted to clarify). -Derin > On Tue, 6 Feb 2007, Derin Cobia > wrote: > >> Then is there a reason to use mris_volume when I can just do >> mris_anatomical_stats and forget the math? >> >> So, if I take the ?h.pial vol

Re: [Fwd: Re: [Freesurfer] total brain volume]

2007-02-06 Thread Bruce Fischl
Hi Derin, so I guess I would use brain volume as the surface volumes of the gray and the white + subcortical volumes (and cerebellum). Bruce On Tue, 6 Feb 2007, Derin Cobia wrote: For one of our projects. We're using cortical gray matter for another (which I wanted to clarify). -Derin