Hi David,
we really haven't spent much time verifying the eTIV stuff, so I would
consider it not-ready-for-primetime at the moment.
sorry,
Bruce
On Wed, 19 Jul 2006,
David Ziegler wrote:
Hello All!
I'm trying to calculate eTIV (ICV) based on the new Buckner method, but for
reconstructions that were completed prior to the most recent stable release
(in 2003-2004). Are there any extra steps or special files that I should be
aware of to make this run properly? Is the procedure for estimating ICV on
older recons documented anywhere?
I tried running mri_label_volume using the only .lta file available in the
subject/mri/transforms directory
(talairach_with_skull_un5_tinit_noneck_both_uns3.lta) but the resulting eTIV
outputs are much smaller than one would expect. Here's a sample command and
output:
[engram:emoaging] (nmr-std-env) mri_label_volume -eTIV
$SUBJECTS_DIR/emot_118/mri/transforms/talairach_with_skull_un5_tinit_noneck_both_uns3.lta
$SUBJECTS_DIR/emot_118/mri/aseg.mgz 17 53
using eTIV from atlas transform of 878 cm^3
processing label 17...
3730 voxels (3730.0 mm^3) in label 17, %0.424837 of eTIV volume (877983)
processing label 53...
3738 voxels (3738.0 mm^3) in label 53, %0.425748 of eTIV volume (877983)
Any advice?
Thanks!
David
_______________________________________________
Freesurfer mailing list
[email protected]
https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
_______________________________________________
Freesurfer mailing list
[email protected]
https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
