[Gate-users] Castor Reconstruction

[tmerlin]

Hi João,

The castor-GATERootToCastor script requires the definition of a matrix 
of virtual pixels for the SPECT camera. The correct option to use is 
"/-sp_bins X,Y/", where X and Y define the number of transaxial and 
axial pixels respectively (ignore the /-spect_b/ command as mentioned in 
the error message, it is related to an older build).

In practice, the singles will be assigned to a specific pixel depending 
on their globalPosX,Y,Z.

Regarding the /-m/ option, you should indeed give the main macro. The 
script will look for any (uncommented) //control/execute/ commands, and 
should look in every other macro file called from the main file. I am 
not sure why it couldn't find yours, maybe some issues regarding path 
management. A quick workaround would be to copy the contents of the 
SPECT macros in one single file.

I attached some example scripts for the conversion and reconstruction of 
the GATE SPECT benchmark data. You can launch them from the benchSPECT 
directory.

Let me know if you have other questions, or get any new errors.


Best regards,

Thibaut




On 08/11/2017 18:16, João H. wrote:
> Does anyone reconstructs your SPECT outputs in Castor?
> If yes, could you send me an example of a succesful example?
> I'm trying to reconstruct from my .root file, but when i run the 
> castor-GATERootToCastor command, it gives me this error:
> **** castor-GATERootToCastor :: Error : Axial and transaxial bins 
> values expected (use option -spect_b) !
> ***** Exit function called. Abort with code 1.
> If you split your main macro into other macros as usual, what macro 
> should I plug into the -m option? when trying for the mainMacro.mac it 
> gives me no response, it misses the SPECTHead parameters, if i give it 
> the SPECT.mac file, it misses the time slices.
>
> Thanks,
>
> João Castelo, IRD / University of Rio, Brazil
>
>
>
>
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-- 
Thibaut MERLIN -- PhD

Docteur en Imagerie Médicale au Laboratoire de Traitement de l'Information Medicale (LaTIM - INSERM UMR 1101)
Bâtiment 1
CHRU Morvan - 2, Av. Foch
29609 Brest CEDEX - FRANCE
Tel: 06.75.12.24.90

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