Hi,
Also run fslhd on your images and see if either dim5 or dim6 are greater
than 1. If so then that is a problem for the current version of FSL
as it
cannot read such files yet. If that is the case then let us know as
there
are ways of changing such files to suit FSL.
All the best,
Mark
On 14 May 2009, at 19:17, Dianne Patterson wrote:
> When you run dtifit in FSL it creates FA, MD images and V1,V2,V3
> (vector images).
> To display the colors/lines you display, for example, an FA image
> and the V1 image at the same time...then select RGB or lines for the
> V1 image.
>
> In my experience, not all programs divide up the tensor image the
> same way...so if you created the images in a different program, that
> might account for your troubles?
>
> -Dianne
>
> On Thu, May 14, 2009 at 10:58 AM, Kanterakis, Efstathios <[log in to unmask]
> > wrote:
> Hello,
> I really like your image viewer and I was enthused to find a DTI
> display option in it. I am trying to load in a diffusion tensor,
> 128x128x90x6, voxel size 2x2x2, float32 that is saved in the Nifti
> convention (lower triangular, NIFTI_INTENT_SYMMATRIX).
>
> In the information dialog, I select image type: Diffusion Tensor and
> display as RGB but the image is still displayed in grayscale. When I
> select Lines, I get a few faint blue dots. Modulation by the FA
> gives me
> an overlay of the tensor with the FA and two sliders (still no color
> or
> lines). But I can't get even close to the beauty shown in this
> document
> http://www.fmrib.ox.ac.uk/fsl/fslview/dti.html
>
> Any help would be greatly appreciated.
> Thanks,
>
> Stathis A. Kanterakis
> Section of Biomedical Image Analysis
> University of Pennsylvania / Radiology
> [log in to unmask]
>
>
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> --
> Dianne Patterson, Ph.D.
> [log in to unmask]
> University of Arizona
> SLHS 328
> 621-5105
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