Doug -
Thank you for your suggestion.  I looked, and the talairach_with_skull.lta file was unique to each subject.  However, the talairach.xfm file was actually a shortcut to /apps/freesurfer3/subjects/fsaverage/mri/transforms/talairach.xfm.  This is because of some in-house legacy code that we use to do some preprocessing.  After fixing this, the icv value came out unique.

Too bad it is in the beginning of the reconstruction stream.  149 subjects is going to take a while to redo.  Besides the icv measurements, will this file effect other outputs, or could I just rerun the segstats command?

Nick -
Sorry, I should have been more clear.  I reran them in fs4 from scratch, using a different subject directory, so the two recons should hopefully be completely independent of each other.

Thanks Everyone!
Jeff


On Fri, Feb 19, 2010 at 12:47 PM, Nick Schmansky <nicks@nmr.mgh.harvard.edu> wrote:
also note that if the subjects were processed by a prior version, then
when re-run with v4.X, talairach.xfm will not get overwritten, as it is
assuming it was edited.  so you should check of talairach.xfm and
talairach.auto.xfm are the same, and if not either re-run with
-clean-tal, or just copy talairach.auto.xfm to talairach.xfm.

n.


On Fri, 2010-02-19 at 17:41 -0500, Douglas N Greve wrote:
> Can you check the talairach.xfm and the talairach_with_skull.lta to make
> sure that they are different across subject?
>
> Jeff Sadino wrote:
> > Hi Doug,
> >
> > Thanks for the quick reply.  It just seems like an error that all 149
> > subjects would line up exactly with the talairach transform (that
> > would give a determinant of 1.000000?).
> >
> > The following commands I used from my script were:
> > recon-all -sd /scratch/data431 -s 040002_S04 -autorecon1
> > *code to check for errors*
> > recon-all -sd /scratch/data431 -s 040002_S04 -autorecon2
> > *code to check for errors*
> > recon-all -sd /scratch/data431 -s 040002_S04 -autorecon3
> > *code to check for errors*
> >
> > I searched the recon-all log for "-notalairach" and came up with no
> > hits.  Any other ideas?
> >
> > I ran all of these subjects in fs3 a while ago using an older version
> > of my script, and they all came out with unique icv values.
> >
> > Thank you again for your suggestions!
> > Jeff Sadino
> >
> > On Fri, Feb 19, 2010 at 12:04 PM, Douglas N Greve
> > <greve@nmr.mgh.harvard.edu <mailto:greve@nmr.mgh.harvard.edu>> wrote:
> >
> >     The ICV is *estimated* from the talairach transform. Did you
> >     happen to run recon-all with -notalairach? You can check that the
> >     talairach transforms are all different.
> >
> >     doug
> >
> >     Jeff Sadino wrote:
> >
> >         Hello,
> >         I reconed 149 subjects using freesurfer 4.3.1 automatically
> >         using our cluster.  When I did asegstats2table, all 149
> >         subjects had the exact same icv:
> >         # Measure IntraCranialVol, ICV, Intracranial Volume,
> >         1948106.000000, mm^3
> >
> >         Running mri_segstats manually, here is the beginning of the
> >         output:
> >
> >         mri_segstats --seg mri/aseg.mgz --sum stats/aseg2.stats --pv
> >         mri/norm.mgz --excludeid 0 --brain-vol-from-seg --brainmask
> >         mri/brainmask.mgz --in mri/norm.mgz --in-intensity-name norm
> >         --in-intensity-units MR --etiv --surf-wm-vol --ctab
> >         $FREESURFER_HOME/ASegStatsLUT.txt --subject 040002_S04
> >         atlas_icv (eTIV) = 1948106 mm^3 (det: 1.000000 )
> >         Loading mri/aseg.mgz
> >         Getting Cerebral WM volumes from surface
> >         lh white matter volume 246101
> >         rh white matter volume 251160
> >         Loading mri/norm.mgz
> >         Loading mri/norm.mgz
> >         Loading mri/brainmask.mgz
> >         # nbrainmaskvoxels 1766623
> >         # brainmaskvolume 1766623.0
> >         # nbrainsegvoxels 1310448
> >         # brainsegvolume 1310448.0
> >         Voxel Volume is 1 mm^3
> >         Generating list of segmentation ids
> >         Found 50 segmentations
> >         Computing statistics for each segmentation
> >         1 2 Left-Cerebral-White-Matter 247216 247216
> >
> >         Looking at the log files for several other subjects, they all
> >         have a determinant of 1.  However, all of the other numbers -
> >         brainmask, brain seg volume, individual regions - are all
> >         unique and correct.  It is just the icv.  Can anyone point me
> >         in the right direction of how to investigate the determinant
> >         value?
> >
> >         Here is the mri_segstats version: # cvs_version $Id:
> >         mri_segstats.c,v 1.33.2.5 2009/02/11 22:38:51 nicks Exp $
> >
> >         Thanks!
> >         Jeff Sadino
> >         ------------------------------------------------------------------------
> >
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> >
> >
> >     --
> >     Douglas N. Greve, Ph.D.
> >     MGH-NMR Center
> >     greve@nmr.mgh.harvard.edu <mailto:greve@nmr.mgh.harvard.edu>
> >     Phone Number: 617-724-2358 Fax: 617-726-7422
> >
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> >     <http://www.nmr.mgh.harvard.edu/facility/filedrop/index.html>
> >
> >
>
> --
> Douglas N. Greve, Ph.D.
> MGH-NMR Center
> greve@nmr.mgh.harvard.edu
> Phone Number: 617-724-2358
> Fax: 617-726-7422
>
> Bugs: surfer.nmr.mgh.harvard.edu/fswiki/BugReporting
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