[Gate-users] reading CylindricalPET ROOT files in STIR

[MOREL Christian]

Dear Kris,

Normally, RSector as defined in the LMF library (see below) can also be repeated along the scanner axis.

Kind regards, Christian Morel



> Le 27 juin 2017 à 15:52, Thielemans, Kris <k.thielemans at ucl.ac.uk> a écrit :
> 
> Hi all
>  
> As you know, Nikos put code into our development version of STIR to read ROOT files (it needs an additional text file to specify some scanner info). This should handle CylindricalPET and ECAT output. We’re checking this now and have identified 2 “issues”
>  
> https://github.com/UCL/STIR/issues/80 <https://github.com/UCL/STIR/issues/80>
> https://github.com/UCL/STIR/issues/79 <https://github.com/UCL/STIR/issues/79>
>  
> The main problem is that CylindricalPET has 1 extra level of hierarchy:
> CylindricalPET: RSector, Module, Submodule, Crystal
> STIR: bucket, block, crystal
>  
> We’re debating how to map the CylindricalPET case to STIR. However to make a sensible decision, can someone please clarify what the consequences are of the cylindricalPET hierarchy? I realise you can use this do specify geometry (via the repeaters). Does it also have anything to do with dead-time processing?
>  
> Also, can RSector to repetition along the scanner axis as well, or only rotation?
>  
> Of course, feel free to add comments to the Issues above. If not, I’ll summarise this email thread and put it on github as well.
> Please reply to both gate-users at lists.opengatecollaboration.org <mailto:gate-users at lists.opengatecollaboration.org> and stir-devel at lists.sourceforge.net <mailto:stir-devel at lists.sourceforge.net>
>  
> Many thanks
>  
> Kris Thielemans
> Reader in Medical Imaging Physics at University College London,
> Institute of Nuclear Medicine, UCL Hospital, Tower 5,
> 235 Euston Road, London NW1 2BU, UK
>  
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__________________
Christian MOREL, PhD
Professeur des universités
Centre de Physique des Particules de Marseille (CPPM)
Aix-Marseille Université et CNRS/IN2P3
163, Av. de Luminy, Case 902, 13288 Marseille, France

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