this wiki page has just been created to hold this info: http://surfer.nmr.mgh.harvard.edu/fswiki/BrainVolume
On Wed, 2007-11-28 at 14:14 -0500, Doug Greve wrote: > This is from mri_segstats --help > > MEASURES OF BRAIN VOLUME > > There will be four measures of brain volume in the output summary file: > (1) BrainSegNotVent - sum of the volume of the structures identified in > the aseg.mgz volume this will include cerebellum but not ventricles, > CSF and dura. Includes partial volume compensation with --pv. > This is probably the number you want to report. > (2) BrainMask - total volume of non-zero voxels in brainmask.mgz. This > will > include cerebellum, ventricles, and possibly dura. This is > probably not > what you want to report. > (3) BrainSeg - sum of the volume of the structures identified in the > aseg.mgz > volume. This will include cerebellum and ventricles but should > exclude > dura. This does not include partial volume compensation, so > this number might be different than the sum of the segmentation > volumes. > (4) IntraCranialVol (ICV) - estimate of the intracranial volume based > on the > talairach transform. See surfer.nmr.mgh.harvard.edu/fswiki/eTIV > for more > details. This is the same measure as Estimated Total Intracranial > Volume > (eTIV). > > > Akram Bakkour wrote: > > > > > Hi all, > > I want to pull the measure of whole brain volume. In the aseg.stats > > there is a BrainMaskVol and a BrainSegVol. Which one do I want? > > As I understand it, BrainMaskVol is the volume of the brainmask > > (including the ventricles) whereas BrainSegVol is the volume of brain > > matter and not including the ventricles, so I think this is the one I > > want, but I want to make sure and I couldn't find a straight answer on > > the wiki. > > Thanks! > > Akram. > > > _______________________________________________ Freesurfer mailing list [email protected] https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
