[MINC-users] retrieve coregistration

[Robert D. Vincent]

Hi Jérôme,

I don't know the "imgratio" tool, is it possible it is changing or deleting
the voxel-to-world transform? What is the output of mincinfo on the two mnc
files?

If the basic sampling grid hasn't changed, you should be able to use
minc_modify_header to put the original voxel-to-world transform back into
the ratio.mnc header.

    -bert

On Thu, Sep 15, 2016 at 5:59 AM, Jérôme Redouté <redoute at cermep.fr> wrote:

> Hi all,
>
> I need your help concerning a coregistration loss problem during image
> processing.
>
> I have a mnc PET 4D volume that I need to process in ECAT format.
>
> My processing steps are as follows:
>
> DYN.mnc => ecat with minctoecat
>
> ecat processing (imgratio) to generate a ratio image => ratio.v
>
> convert back to minc using ecattominc => ratio.mnc
>
> my problem is that ratio.mnc is not in alignment with DYN.mnc
>
>
> How should I correct ratio.mnc header to bring this alignment back?
>
> Thanks for your help
>
> Jerome
>
> --
> ==================================================================
> Jérôme Redouté
> Ph.D. - Ingénieur de Recherche - Université Claude Bernard - Lyon1
> CERMEP - Imagerie du vivant
> 59 Bd Pinel. 69677 Bron - FRANCE
> tel : 33 (0)4 72 68 86 18 (bureau)
> tel : 33 (0)4 72 68 86 00 (standard)
> fax : 33 (0)4 72 68 86 10
> ==================================================================
>
>
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