[Gate-users] TPSPlan simulations

[jbaran]

Dear GATE Community,

I am trying to validate the GATE software with TPS (GATE-RTion) for 
proton radiotherapy planning at our centre in Cracow. I prepared the 
beam model and CT calibration as requested at GATE wiki. For the dicom 
plan conversion I used clitkDicomRTPlan2GATE from VV software.
I found one problem in the simulations. I believe the 
PatientAngleSupport (couch angle) is not taken into account at all. I 
simplified the whole plan to just one spot and run the simulation with 
GATE and compared with TPS. Let say in original plan PatientSupportAngle 
is 340. However, the dose profile of the spot suggest that that Patient 
Support Angle is 0. For testing purpose I changed just the 
PatientSupportAngle into 300 and 200. But the dose profiles looks 
exactly the same as in case of 340 (they are situated exactly in the 
same position for all three cases and doesn't correspond to the proper 
dose profile from TPS).

Please find attached a few images shown the dose map imposed on the CT.

The plan description file is as follows:
#TREATMENT-PLAN-DESCRIPTION
#PlanName
Toto
#NumberOfFractions
1
##FractionID
1
##NumberOfFields
1
###FieldsID
1
#TotalMetersetWeightOfAllFields
1

#FIELD-DESCRIPTION
###FieldID
1
###FinalCumulativeMeterSetWeight
1
###GantryAngle
110
###PatientSupportAngle
340
###IsocenterPosition
10 -239.4 -785
###NumberOfControlPoints
1

#SPOTS-DESCRIPTION
####ControlPointIndex
0
####SpotTunnedID
3.0
####CumulativeMetersetWeight
0
####Energy (MeV)
175.228
####NbOfScannedSpots
1
####X Y Weight
15 -35 1
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