Hi,
On 21 Apr 2008, at 17:17, Keihaninejad, Shiva wrote:
>
> Dear All,
> I’m beginner at TBSS, I use fsl 4. It seems that the first part
> (tbss_1_preproc) was done properly. My original images are single
> file (.nii) and in FAi directory they are saved as Dual file (.hdr
> & .img), is that correct?
Yes - see the TBSS manual - in FSL4 the nonlinear reg is IRTK which
can only read Analyze format (.hdr & .img)
> After applying tbss_2_reg (with –n option)and tbss_3_postreg –S,
> the stats directory contains:
> All_FA.nii, mean_FA_mask,
> mean_FA,mean_FA_skeleton,MNI152,target,target_to_MNI152.mat ,
> target_to_MNI152
>
> When I want to visualise all_FA, mean_FA_skeleton images in fslview
> nothing is shown and I can just visualise MNI152 image and not the
> other.
>
> During the last step at the time of affine-registering target to
> MNI152 space there is a warning message: in calculation COG,
> total=0.0 .does that make this problem?
> Could you please tell me what the problem is.
Hard to tell - does sound like something's gone wrong with the data/
registrations.
>
> Many thanks,
>
> Shiva
>
>
>
>
---------------------------------------------------------------------------
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
---------------------------------------------------------------------------
|