[Mrtrix-discussion] Export MRtrix files

[Donald Tournier]

Hi Manuel,

I don't use the VTK format at all, but from my limited exposure to it, it
seems very wasteful (just ran a quick test: 412MB mrtrix track file ->
1.2GB vtk track file), which might explain why you're ending up with such a
large file size. In any case, maybe you can get by with MRView's limited 3D
display capabilities? I freely admit that they're very poorly documented,
but if you follow these instructions, you might find it's sufficient for
your needs:

http://www.nitrc.org/pipermail/mrtrix-discussion/2012-April/000411.html

Cheers,
Donald.



On 17 March 2014 17:51, Ivan Alvarez <ivan.alvarez.11 at ucl.ac.uk> wrote:

>  Dear Manuel,
>
> The size of the file is dependent on how many streamlines you generated in
> MRtrix in the first place. Trackvis may have some built-in limit on the
> number of streamlines it can render, you may want to read the Trackvis
> documentation for that.
>
> There are a couple of options, TrackVis being the obvious one. You may
> also want to consider Paraview (http://www.paraview.org/), but it's not
> something I've yet tried. I think someone suggested using Camino for the
> file conversion, so it might be worth exploring.
>
> In the future, please post these questions to the mailing list; you have a
> better chance of getting an answer from an expert (ie. not me) and others
> can benefit from the answers as well : )
>
> Kind regards,
> Ivan Alvarez
>
> PhD Candidate
> Imaging and Biophysics Unit
> UCL Institute of Child Health
> 30 Guilford Street, London, WC1N 1EH
>
> On 17/03/14 17:33, Manuel Blesa Cábez wrote:
>
> Dear Ivan,
>
> I read your response to my doubt on the MRtrix forum. I converted the
> image with the script that you told me, but the converted image is very big
> (8'1GB) and the trackvis can't open it. Do you know how to solve it?
>
> Another question: I want to view the MRtrix images in 3D and I don't know
> with is the best program to get a 3D visualisation. Could you recommend me
> something? Any help will be grateful.
>
> Thanks in advance.
>
> Best regards,
>
> Manuel Blesa
>
>
>
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>


-- 
*Dr J-Donald Tournier (PhD)*

*Senior Lecturer, **Biomedical Engineering*

*Division of Imaging Sciences & Biomedical EngineeringKing's College London*


*A: Department of Perinatal Imaging & Health, 1st Floor South Wing, St
Thomas' Hospital, London. SE1 7EH*
*T: +44 (0)20 7188 7118 ext 53613*
*W: http://www.kcl.ac.uk/medicine/research/divisions/imaging/departments/biomedengineering
<http://www.kcl.ac.uk/medicine/research/divisions/imaging/departments/biomedengineering>*
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