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Optimization
can be
based on a
‘
Cost Function
’
-
a
figure of merit
based on the specification for target
and sensitive organ dose requirement.
-
Clearly there may be many terms for the target and
each OAR, and there may be more than one minimum
25
ESTRO physics course 2017
The inverse problem
What will you minimise for PTV?
A. Dose to PTV?
B. Mean Dose to PTV?
C. Dose difference to
prescription dose?
Dose to PTV?
Mean Dose to PTV?
Dose difference to pre...
33% 33% 33%