1626-1627 / 2953
Iterative segment shape (aperture) optimization
initial field
•
trial-and-error
(e.g. simulated annealing)
•
derivatives
•
brute force
candidates for
opening
or
closing
leaves
ESTRO IMRT course 2016
IMRT optimization: algorithms&cost functions
London April 4th, 2016
-39-
dose calculation
chose next field,
repeat
altered field