Hi there -
The error
Can't open /data/joha/nms_jn.feat/prefiltered_func_data_mcf.hdr
while executing ....
sounds like you may not have permission to write to the directory:
/data/joha/nms_jn.feat/
Have you checked the permissions on this directory?
thanks
Tim
On Mon, 25 Mar 2002, Pasi Tuunanen wrote:
> Hello,
>
> We have problems with aligning single-slice data which consist of R2-maps
> from a visual study. Our flirt-version is 4.0. Since the data is parameter
> maps, we wouldn't like to touch the pixel intensities. Intensities were set
> to range of 100...1100.
>
> Mcflirt gave us an error:
>
> Started FEAT at Mon Mar 25 12:27:14 EET 2002 on keula89.uku.fi
> Total original volumes = 70
> Deleting 5 volume(s) - BE WARNED for future analysis!
> /opt/fsl/bin/avwroi /data/joha/nms_jn
> /data/joha/nms_jn.feat/prefiltered_func_data 5 65
>
> /opt/fsl/bin/avwroi /data/joha/nms_jn.feat/prefiltered_func_data
> /data/joha/nms_jn.feat/example_func 32 1
>
> /opt/fsl/bin/mcflirt -in /data/joha/nms_jn.feat/prefiltered_func_data -out
> /data/joha/nms_jn.feat/prefiltered_func_data_mcf -plots -refvol 32
> Can't open /data/joha/nms_jn.feat/prefiltered_func_data_mcf.hdr
> while executing
> "exec sh -c $thecommand | grep THRESHOLD | awk {{ print $2 }} - "
> (procedure "feat4:proc" line 223)
> invoked from within
> "feat4:proc [ file rootname [ lindex $argv 0 ] ]"
> (file "/opt/fsl/bin/feat" line 17)
> child killed: segmentation violation
>
> Basically the same error was produced when we tried modified stack of
> NxMx3xseries (same slice three times as third dimension) instead of
> NxMx1xseries.
>
> We also tried to use previously mentioned schedule files (3dof) for
> alignment, but we got only background intensities as a result. High
> resolution image is available from the same slice.
>
> Any ideas?
>
> Help appreciated,
>
> Pasi Tuunanen
>
--
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Tim Behrens
Centre for Functional MRI of the Brain
The John Radcliffe Hospital
Headley Way Oxford OX3 9DU
Oxford University
Work 01865 222782
Mobile 07980 884537
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