Physics Bucharest 2017
Why Monte Carlo Treatment Planning?
Accuracy Dose calculation should be accurate within 2% to 3% MC dose calculation engines can be even more exact than 3% Regardless of the treatment setup
Uncertainties and Causes Imperfect matching of the MC beam to the Linac within 1% Uncertainties in the cross section libraries negligible Limited number of simulated ‘events’ ~number of histories Uncertainties in the conversion of CT data to the material composition and density difficult to quantify
Measurement Monte Carlo EPL
100 120
0 20 40 60 80
Dose (%)
Hol (2008)
0
100
200
Depth (mm)
34
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