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 
> <gr...@nmr.mgh.harvard.edu <mailto:gr...@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
>     gr...@nmr.mgh.harvard.edu <mailto:gr...@nmr.mgh.harvard.edu>
>     Phone Number: 617-724-2358 Fax: 617-726-7422
>
>     Bugs: surfer.nmr.mgh.harvard.edu/fswiki/BugReporting
>     <http://surfer.nmr.mgh.harvard.edu/fswiki/BugReporting>
>     FileDrop: www.nmr.mgh.harvard.edu/facility/filedrop/index.html
>     <http://www.nmr.mgh.harvard.edu/facility/filedrop/index.html>
>
>

-- 
Douglas N. Greve, Ph.D.
MGH-NMR Center
gr...@nmr.mgh.harvard.edu
Phone Number: 617-724-2358 
Fax: 617-726-7422

Bugs: surfer.nmr.mgh.harvard.edu/fswiki/BugReporting
FileDrop: www.nmr.mgh.harvard.edu/facility/filedrop/index.html

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