IMRT Course 2016

The next step: more than one re-optimization, dose accumulation, probabilistic planning

M. Birkner et al. 2003: Adapting inverse planning to patient and organ geometrical variation: algorithm and implementation. Med. Phys. 30(10)

one feedback loop

planning CT

Fx 1

IMRT plan

Fx 5

Fx 6

Fx N

…

…

new plan

1 cm margin around CTV

probabilistic IMRT plan

optimizes the expected dose-per-voxel

CT

CT

…

deformable registration, dose warping, dose accumulation

model motion of each voxel, this enables calculation of average ‘expected’ dose-per-voxel

ESTRO IMRT course 2016 Adaptive Radiotherapy London April 7th, 2016

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