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Materials and Methods
Six prostate cases were replanned using probabilistic
objective functions aiming for identical target coverage
All plans were evaluated using independent geometrical
uncertainties simulation software (UNCERT)
10.000 patients x 39 fractions simulated per plan
Uncertainty values (1SD): setup errors + organ motion
Translation errors
(mm)
LR AP SI
Preparation (systematic)
Σ
k
2.6 3.5 2.4
Execution (random)
σ
k
2.0 3.0 2.4
19
prostate
and
rectum