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ESTRO IMRT course 2015
IMRT optimization: algorithms&cost functions
Brussels October 5th, 2015
-47-
Different goals
require different
types of cost functions:
•
physical:
dose-, dose/volume-based
•
biological
Dose
Volume
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-
-
-
+
+
+
+
+
-
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A cost function rewards the positive aspects of a DVH
and penalizes the negative ones in a single number