1620-1621 / 2953
MLC delivery deviates from the ideal profiles
sequencing: translation into
(coarser, but deliverable)
segments
step and shoot
courtesy M. Alber
improvement
ESTRO IMRT course 2016
IMRT optimization: algorithms&cost functions
London April 4th, 2016
-36-
optimal fluence profile
⇒
(1) Quality loss due to
discretization
sliding-window dynamic
⇒
(2) Hi-quality dose calculation of
segment doses changes dose distribution!
(usually: to the worse)