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Delivery uncertainties proton therapy
Scandurra D, PMB (61) 2016
How
treatment log files (record of the machine
parameters) to investigate the integrity of
treatment delivery compared to the
nominal planned dose.
Results
→
the integrity of treatment delivery is
dependent on daily machine
performance and is highly correlated
with the accuracy of beam position.
→
Increased robustness gained by using
multiple fields per series
→
Extra patient specific QA benefit!
TPS
Log files
Local dose diff
g
-eval
Hp
Pencil beam scanning proton therapy requires the delivery of many thousand
beams, each modulated for position, energy and monitor units, to provide a highly
conformal patient treatment.