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ESTRO IMRT course 2015
Dose Calculation in Static and Rotational IMRT
Brussels October 8th, 2015
-44-
Special issues for Rotational IMRT:
Discretized Arc vs. Continuous Arc Dose Calculation
Pinnacle SmartArc
treatment plan,
recomputed with
Monte Carlo
Most algorithms calculate the dose of an Arc as sum of segment dose contributions
from
discrete beam angles
Monte Carlo: Beam angle can be treated as additional random variable!
→
simulation of the rotating, dynamically modulated beam without discretization
of the motion
courtesy M. Alber