Hi Gabor the volumes must change with reslicing. As to why they get consistently bigger in the hippocampus I'm not sure, probably something to do with its geometry
cheers Bruce On Fri, 17 Jan 2014, Gabor Perlaki wrote: > Dear all, > > I've run the freesurfer on 3 subjects and converted the aseg.mgz into > *.nii.gz in the native space: > > "mri_convert -rl rawavg.mgz -rt nearest aseg.mgz aseg2raw.nii.gz" > > > I've did a stats on left and right hippocampal volumes in the native space > using fslstats: > > "fslstats aseg2raw.nii.gz -l 16.5 -u 17.5 -V" for the left hippocampus > > and > > "fslstats aseg2raw.nii.gz -l 52.5 -u 53.5 -V" for the right hippocampus > > > The volumes given by fslstats was about 3% higher than the values reported > in the aseg.stats file. The native resolution of the T1 images is > 0.45*0.45*0.9 mm^3. I thought that observing a minimal difference could be > the consequence of reslicing, but I really don't understand why fslstats > gives consequently greater values (for both hippocampi in all three > subjects). > > Thanks, > Gabor > > _______________________________________________ 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.
