Thanks a lot Nick.

I'll try to convert the AFNI skull strip into brainmask and nu and see if I can resume the pipeline.

I put in the new values for the xfm and ran recon-all again with the notalairach flag.

recon-all -s Nl-TAl-001 -notalairach -all

However, it still quits at the watershed step. I ran another brain where the raw images were dcm and it ran fine so the problem is definitely something specific to this brain.

Nick, I know that autorecon1 ran fine for you so I really have no clue why my machine quits at the watershed step even with the transform you gave me.

Any clues, suggestions?

Thanks a lot,

Anil.

On 2/14/07, Nick Schmansky <nicks@nmr.mgh.harvard.edu> wrote:
Anil,

Here is the transform (the contents of the talairach.xfm file) that I
generated:

Transform_Type = Linear;
Linear_Transform =
9.265516e-01 5.678305e-04 2.317888e-03 3.736965e-01
-8.173273e-04 8.513330e-01 8.824052e-02 -1.653205e+01
-2.688466e-03 -1.064786e-01 9.460568e-01 1.780552e+01 ;

Remember to use the -notalairach flag with recon-all when you create the
new talairach.xfm file, so that it doesnt get overwritten.

4GB is plenty to run Freesurfer, so it is strange that mri_watershed is
encountering out-of-memory errors.

Nick


On Wed, 2007-02-14 at 17:20 -0600, Anil Roy wrote:
> Also, I ran it on a Red Hat system and I'm still getting the error so
> I don't think it is a machine specific problem. Any suggestions.
>
> Thanks.
> Anil.
>
> On 2/14/07, Anil Roy <aroy85@gmail.com> wrote:
>         Here are the details of the acquisitions:
>
>         Images acquired on a 3T Signa scanner with a standard GE head
>         coil. 3D T1-weighted spiral volume scan (120 slices, 1.4875-mm
>         thick, TR = 20 msec, TE = 6 msec, 40 degrees flip angle, 256 *
>         192 matrix)
>
>         The machine has 4 gigs of RAM. Also, AFNI is able to talairach
>         and skull strip. Is there a way I can input the files from
>         AFNI to Freesurfer to resume the recon-all pipeline.
>
>         Nick, is there a way for me to see your reg so that I can be
>         sure that its not my created xfm that is  causing this
>         problem.
>
>         Thanks,
>
>         Anil.
>
>
>         On 2/14/07, Bruce Fischl <fischl@nmr.mgh.harvard.edu > wrote:
>                 why is the background so high? Also, what field
>                 strength was this at? There
>                 looks to be dielectric-like center brightening. The
>                 contrast isn't terrible
>                 though.
>
>                 On Wed, 14 Feb 2007, Nick
>                 Schmansky wrote:
>
>                 > Bruce,
>                 >
>                 > the orig.mgz can be downloaded via the filedrop, see
>                 link in email
>                 > below.
>                 >
>                 > or i have copied it to:
>                 >
>                 >  /autofs/space/minerva_001/users/nicks/subjects/anil/mri
>                 >
>                 > N.
>                 >
>                 >
>                 > On Wed, 2007-02-14 at 17:02 -0500, Bruce Fischl
>                 wrote:
>                 >> put the .mgz somewhere and I'll take a look. And
>                 make sure it's the
>                 >> orig.mgz, which is un-normalized
>                 >>
>                 >>
>                 >> On Wed, 14 Feb 2007, Nick Schmansky wrote:
>                 >>
>                 >>> Anil,
>                 >>>
>                 >>> The image has almost no contrast.  I've attached a
>                 TIFF of one slice.
>                 >>> How was this acquired?  Bruce, any idea why it
>                 would be so white?
>                 >>>
>                 >>> Nick
>                 >>>
>                 >>>
>                 >>> On Wed, 2007-02-14 at 16:10 -0500,
>                 aroy85@gmail.com wrote:
>                 >>>> The following files have been uploaded to the
>                 Martinos Center FileDrop site
>                 >>>> by Anil Roy for you to download:
>                 >>>>
>                 >>>> (1) orig.mgz
>                 >>>>
>                 >>>>
>                 >>>>
>                 >>>> These files will expire in 30 days.
>                 >>>>
>                 >>>> To view or download these files, go in your web
>                 browser to:
>                 >>>>
>                 >>>>
>                 https://www.nmr.mgh.harvard.edu/facility/filedrop/showgroup/5010/426/7389dc72a7ad03d19b7736c8a7adff69
>                 >>>>
>                 >>>> DO NOT SHARE this web address with anyone
>                 else.  It is your personal access key to the files.
>                 >>>>
>                 >>>> Overall Comment about files from Anil Roy:
>                 >>>>
>                 >>>> Hi,
>                 >>>>
>                 >>>> Attached is the orig.mgz file for the subject
>                 that quits at the watershed step.
>                 >>>>
>                 >>>> Thanks,
>                 >>>>
>                 >>>> Anil.
>                 >>>>
>                 >>>>
>                 >>>
>                 >>
>                 >>
>                 >
>                 >
>                 >
>
>
>
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