Falk, it looks like that file was somehow converted to DOS. try:
dos2unix recon-all
chmod a+x recon-all
then re-run
doug
On Mon, 6 Apr 2009, Falk Lüsebrink wrote:
Hi Nick,
I tried using your modified recon-all today but as soon as I try to process any
data I receive following error message:
'nknown option: `-
Usage: tcsh [ -bcdefilmnqstvVxX ] [argument ...].
Also it doesn't matter at all which flags I add to recon-all or if I don't use
any flags at all, the error is the same. The unmodified recon-all performs well.
Regards,
Falk
-----Original Message-----
From: freesurfer-boun...@nmr.mgh.harvard.edu
[mailto:freesurfer-boun...@nmr.mgh.harvard.edu] On Behalf Of Nick Schmansky
Sent: Thursday, April 02, 2009 3:28 PM
To: Falk Lüsebrink
Cc: Freesurfer Mailing List
Subject: RE: [Freesurfer] Measuring cortical thickness with high resolution data
Falk,
There are no plans in the near future, but in the long term we'd like to remove
the dependence on conforming the data.
It just occurred to me that you could have the best of both worlds:
first run your data through the normal stream (conforming) up through
autorecon1, then use mri_vol2vol to create a brainmask.mgz at the same
resolution as that created using the -hires stream, and copy it over.
At least that would eliminate having to edit the original hires brainmask,
which would save hours of work. If i get few minutes i will try this.
You can copy that recon-all over top your existing v4.x freesurfer installation
(attached again for the list).
Nick
On Thu, 2009-04-02 at 10:58 +0200, Falk Lüsebrink wrote:
Hi Nick,
Thank you very much. I'll have to look into that and try to process some other
volumes which might work a bit better, with less manual intervention.
Are there any plans to improve Freesurfer in the (near) future so that hires
data can be processed within the currently available stream?
Regards,
Falk
-----Original Message-----
From: Nick Schmansky [mailto:ni...@nmr.mgh.harvard.edu]
Sent: Wednesday, April 01, 2009 7:53 PM
To: Falk Lüsebrink
Cc: Freesurfer Mailing List
Subject: Re: [Freesurfer] Measuring cortical thickness with high
resolution data
Falk,
Attached is a modified recon-all script where I've added a -hires switch to
force the stream to not conform the data to 1mm^3, and to not use the atlases.
Note that you should add the -clean flag to delete any work that had been done
prior (namely, -clean deletes brainmask.mgz, aseg.mgz and wm.mgz).
However, in working with the .8mm data that you sent me, working with hires
data will require quite a bit of manual intervention due to the fact that the
atlases normally used cannot be used. The first problem occurs in
skull-stripping, where quite a bit of dura and skull remains, and seems to have
intensity values close to gray matter. This would have to be manually erased
on each of the slices. If it is not erased (I did not do this because of the
amount of time required), then the wm.mgz file, which is what is tessellated to
create the initial surface, will be very wrong (it tessellates the garbage
surrounding the gray matter).
See also Bruce's prior posting on the problems of working with hires data in
freesurfer.
Nick
On Wed, 2009-03-25 at 13:04 +0100, Falk Lüsebrink wrote:
Hi Freesurfers,
Iÿÿm trying to evaluate the usefulness of high resolution scans
acquired at 7T with an isometric voxel size of .6mm for the
measurement of cortical thickness. The inhomogeneities are taken
care of by dividing the scans with another scan of another sequence,
so they are not an issue anymore.
My problem is that Freesurfer usually conforms the voxel size to 1mm
which is not desirable. I tried using the ÿÿcm and ÿÿnoaseg flags for
the recon-all process to avoid the conformation and to skip the
subcortical segmentation, but another problem arises while using
these flags.
The error I receive is occurring after the WM Segmentation and
states as follows:
#--------------------------------------------
#...@# WM Segmentation Wed Mar 18 10:14:42 CET 2009
cp wm.mgz wm.seg.mgz
mri_segment -keep brain.mgz wm.seg.mgz
preserving editing changes in output volume...
doing initial intensity segmentation...
using local statistics to label ambiguous voxels...
computing class statistics for intensity windows...
WM (106.0): 106.9 +- 5.8 [80.0 --> 125.0]
GM (69.0) : 66.3 +- 11.6 [30.0 --> 96.0]
setting bottom of white matter range to 77.9
setting top of gray matter range to 89.4
doing initial intensity segmentation...
using local statistics to label ambiguous voxels...
using local geometry to label remaining ambiguous voxels...
reclassifying voxels using Gaussian border classifier...
removing voxels with positive offset direction...
smoothing T1 volume with sigma = 0.250
removing 1-dimensional structures...
thickening thin strands....
20 segments, 4813 filled
10270 bright non-wm voxels segmented.
5589 diagonally connected voxels added...
white matter segmentation took 2.4 minutes
writing output to wm.seg.mgz...
ERROR: mri_segment-MRIcheckVolDims: volume1 height=256 != volume2
height=320.
The dimensions of the data Iÿÿm trying to process is 320 x 320 x 224
and is changed to 320 x 320 x 320 while using the ÿÿcm flag. It seems
the mri_segment process canÿÿt handle any dimensions above 256 or Iÿÿm
missing another flag.
Does someone has any ideas about that issue?
Regards,
Falk
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--
Douglas N. Greve, Ph.D.
MGH-NMR Center
gr...@nmr.mgh.harvard.edu
Phone Number: 617-724-2358
Fax: 617-726-7422
In order to help us help you, please follow the steps in:
surfer.nmr.mgh.harvard.edu/fswiki/BugReporting
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