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Oh, probably it can't find one of the files you're specifying then. Make
sure they are in the same directory and named exactly as you have them. If
you replace siena with ls:

> ls 1005.nii.gz 2_1005_1.nii.gz

Be sure it doesn't give any errors.



On Thu, Apr 3, 2014 at 10:50 AM, Luis Rodríguez <[log in to unmask]>wrote:

> Hi Mike,
> Thanks for the quick response.
>
> It doesn`t crashes.
>
> When i write down (literally):
>
> siena 1005.nii.gz 2_1005_1.nii.gz
> appears the next text:
>
> "Usage: siena <input1> <input2> [options]
>
>   -o <output-dir>       : set output directory (default output is
> <input1>_to_<input2>_siena)
>   -d                    : debug (don't delete intermediate files)
>   -B "betopts"          : options to pass to BET brain extraction (inside
> double-quotes), e.g. -B "-f 0.3"
>   -2                    : two-class segmentation (don't segment grey and
> white matter separately)
>   -t2                   : T2-weighted input image (default T1-weighted)
>   -m                    : use standard-space masking as well as BET
>   -t <t>                : ignore from t (mm) upwards in MNI152/Talairach
> space
>   -b <b>                : ignore from b (mm) downwards in MNI152/Talairach
> space (b should probably be negative)
>   -S "sienadiffopts"    : options to pass to siena_diff timepoint
> differencing (inside double-quotes), e.g. -S "-s -i 20"
>   -V                    : run ventricle analysis (VIENA)
>   -v <mask image>       : optional user-supplied ventricle mask (default
> is ${FSLDIR}/data/standard/MNI152_T1_2mm_VentricleMask)"
>
> ...and then nothing else happens. I was waiting for any "siena.report" or
> else. I don`t know if this is the usual thing to happen.
>
> I`m gonna try if there`s any response with the command you told me (>ps
> aux i grep siena).
>
> Thanks so much
>



-- 
Michael G. Dwyer, Ph.D.
Assistant Professor of Neurology
Director of Technical Imaging Development
Buffalo Neuroimaging Analysis Center
University at Buffalo
100 High St. Buffalo NY 14203
[log in to unmask]
(716) 859-7065