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Adapting the isocentre:
Setup correction protocols
An early adaptive RT workflow:
Patient-individual reduction of systematic and random setup errors via
portal imaging!
planning
CT
(IMRT)
plan
PI
…
PI
Fx
5
Fx
1
…
pretreatment
setup correction
Fx
6
new isocentre
for the following Fx’s
Fx
N
…
ESTRO IMRT course 2016
Adaptive Radiotherapy
London April 7th, 2016
-16-
Note: The frequency and exact use of PI information
depends on the
setup protocol
used!
estimation
of
systematic error
reduction of setup
error for the
following Fx’s!