[gate-users] Binning sinograms by scatter?

[Long ZHANG]

Hi Claude, Eric,

How about directly modifying the code src/GateToRoot.cc or src/GateToASCII.cc?
This will enable the list mode data output availible for all scanner types, I
think.

BTW, in this way, we may further develop common modules for list mode data binning
processing.

Regards,

Long






In your mail:
>From:evander at physics.ubc.ca
>Reply-To: GATE feedback and helpline for Users <gate-users at lphe1pet1.epfl.ch>
>To: gate-users at lphe1pet1.epfl.ch
>Subject: [gate-users] Binning sinograms by scatter?
>
>Thanks, Claude.
>I appreciate the fast response. I think modifing the source code may be
>the simplest way. I would like to do high statistics studies and the root
>files will become too large too quickly. Are there any plans to generalize
>the different outputs (especially LMF) so that they are not so linked to
>the detector geometry? I imagine list mode data would be useful to many
>GATE users.
>Best Regards,
>Eric
>
>No, there is no option in the sinogram output of the ecat system to
>select the events according to their interaction history. To do this,
>you have several possibilities:
>
>1) as you mentionned, use the LMF output. However, the current version
>of LMF was designed for the clearPET scanner and can handle only a
>limited set of geometries (please refer to Ch. Morel email from yesterday).
>
>2) you can use the root output, where this information is stored, and
>write a root program (not very complicated) to select the events and
>write the sinogram. Mightbe somebody has already such a routine.
>
>3) you can always modify the source code of GATE (src/GateToSinogram.cc,
>routine RecordEndOfEvent).
>
>Rgds,
>
>Claude
>
>evander at physics.ubc.ca wrote:
>
>> Hi,
>> I'm a new GATE user and I was wondering if there was an option to use the
>> ecat system geometry and sinogram output to bin the data based on the
>> interaction history of the photons. For example, it would be nice to have
>> a separate sinogram for the different orders of Compton scatter that occur
>> in the phantom and/or in the detector. Alternatively if there were a way
>> to produce LMF data for the ecat system geometry I could just bin them
>> into sinograms myself.
>> Thanks,
>> Eric
>> _______________________________________________
>> gate-users mailing list
>> gate-users at lphe1pet1.epfl.ch
>> http://lphe1pet1.epfl.ch/mailman/listinfo/gate-users
>>
>>
>>
>
>
>-- 
>Claude Comtat                                        comtat at ieee.org
>Image acquisition and processing group                tel: +33 1 69 86 77 02
>Frédéric Joliot Hospital Facility                fax: +33 1 69 86 77 49
>French Atomic Energy Commission                 www-dsv.cea.fr/shfj
>
>
>
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