[Mrtrix-discussion] mrconvert DICOM file order

[Donald Tournier]

Hi Félix,

I agree that doesn't sound too good. I don't understand how this could
happen, unless the series numbers stored in the DICOM header for each file
are also in the wrong order - this is what MRtrix uses to order the
volumes. My first guess would be that this is the problem. You can easily
check by running read_dicom on each file to see what series number it
reports, and whether they match the order you expected. If not, I'd need to
take a look at the data - any chance you could send me these files?

Cheers,

Donald.


On 24 July 2012 03:57, Félix C. Morency <felix.morency at gmail.com> wrote:

> Hi,
>
> I am trying to create a 4D Nifti volume from multiple Siemens DICOM
> mosaic. The XYZ axis seem to be fine. However, slices along the time
> axis are presented in random (?) order.
>
> I reproduced the issue with four original DICOM mosaic: 000[1-4].dcm.
> I convert them to 4D Nifti using mrconvert. The resulting time axis is
> ordered as following: 0001, 0004, 0002, 0003, which is not the
> expected behaviour.
>
> Do you have any idea what's going on?
>
> Regards,
> --
> Félix C. Morency, M.Sc.
> Plateforme d’analyse et de visualisation d’images
> Centre Hospitalier Universitaire de Sherbrooke
> Centre de recherche clinique Étienne-Le Bel
> Local Z5-3031 | 819.346.1110 ext 16634
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>



-- 
Jacques-Donald Tournier (PhD)
Brain Research Institute, Melbourne, Australia
Tel: +61 (0)3 9035 7033
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