Hi,
Is this resolved?
I doubt it is an issue of resolution, as you should get non-zero
partial volume still. Also, if it works for some of these images
at this resolution, then it should work for all.
If you are still having problems with this, please upload a tarred
set of images for one of the offending subjects and we'll have
a look.
All the best,
Mark
On 22 Dec 2007, at 13:03, Marc J. Dubin wrote:
> I am using the default, which I believe is trilinear....
>
> Could it have something to do with the resolution of the
> native space images, which is 1.7x1.7x5mm?
>
> Best,
> Marc
>
> On 12/22/07, Steve Smith <[log in to unmask] > wrote:Hi, this is
> probably because you are using the -n interpolation option.
> Have you tried without this option?
>
> Cheers, Steve
> ----------------------------------------------------------------------
> --
> Stephen M. Smith, Professor of Biomedical Engineering
> Associate Director, Oxford University FMRIB Centre
>
> FMRIB, JR Hospital, Headington, Oxford OX3 9DU, UK
> +44 (0) 1865 222726 (fax 222717)
> [log in to unmask] http://www.fmrib.ox.ac.uk/~steve
> ----------------------------------------------------------------------
> --
>
> On 21 Dec 2007, at 05:34, Marc Dubin <[log in to unmask]> wrote:
>
> > Dear FSL Users,
> >
> > I am using TBSS_deproject 3 to invert the TBSS from MNI space back
> > to native space.
> > I create grot file from a 45 pixel blob in a tract of interest in
> > MNI152. TBSS_deproject 3
> > then runs without errors and looking at the native space images, I
> > am able to find the
> > inverted blob for most subjects, but there are several subjects in
> > which the blob is nowhere to
> > be found and in fact running fslstats on these native space images
> > reveals that in fact there
> > are no nonzero voxels.
> >
> > Any suggestions on what might be going on with these subjects would
> > be greatly appeciated.
> >
> > Sincerely,
> > Marc
> >
>
>
>
> --
> Marc Dubin, MD PhD
> Resident in Psychiatry - PGY4
> Weill Cornell Medical College
>
> 212-746-3764 (work), 646-831-8886 (cell)
|