[Mrtrix-discussion] MRview MRTrix 3 CSD

[Erik Ziegler]

Hi Donald,

As you've mentioned that the FOD basis is slightly different between
versions, I was wondering if it was safe to use fod2metric on FODs from
mrtrix 0.2? It is okay if I first use shbasis with -force_new?

Thanks,

Erik




On Tue, May 27, 2014 at 9:37 AM, Donald Tournier <jdtournier at gmail.com>
wrote:

> Hi Ralf,
>
> Currently it's not possible to view the FODs in volume render mode - I
> couldn't think of a way of rendering such a massive amount of information
> as a volume render - it's hard enough to absorb all that information in
> single-slice mode... The only sensible way to do it would be to render the
> FODs on the clip planes, but then it doesn't really add much to the normal
> single-slice mode anyway...
>
> And yes, of course it's possible to display the MRtrix3 generated FODs in
> the new viewer - although only in single-slice or ortho view. You can still
> display the MRtrix 0.2 FODs, but they will be subtly wrong since the
> definition of the SH basis has changed slightly. You really need to watch
> out for that, the difference is so subtle that I can't tell which is which
> by eye - you need to use the shbasis app for this. Now that I think about
> it, I might need to emphasise this more strongly on the wiki...
>
> Cheers,
> Donald
>
> --
> Dr J-Donald Tournier (PhD)
>
> Senior Lecturer, Biomedical Engineering
> Division of Imaging Sciences & Biomedical Engineering
> King'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
>
> On 27 May 2014 07:46, "Luetzkendorf, Ralf" <Ralf.Luetzkendorf at med.ovgu.de>
> wrote:
>
>> Hi MRTrix community,
>>
>> a quick question. Is it possible to show the FODs with MRTrix3 in the
>> Volume View?
>> I guess with the MRTrix3 calculated CSD it works, but does it work with
>> the MRTrix 0.2 calculated CSDs / FODs?
>>
>> Ralf
>>
>>
>> +++++++++++++++++++++++++++++++++++++++++++++++
>> Ralf Lützkendorf
>> Department for Biometry and Medical Informatics
>> University of Magdeburg, Germany
>> phone: +49 391 67 13546
>> fax: +49 391 67 13536
>> _______________________________________________
>> Mrtrix-discussion mailing list
>> Mrtrix-discussion at www.nitrc.org
>> http://www.nitrc.org/mailman/listinfo/mrtrix-discussion
>>
>
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