IMRT

This is where adaptive RT comes in!

planning CT

…

…

Fx 2

Fx 1

(IMRT) plan

Fx N

Fx i

use of margins!

IGRT

some kind of imaging

assumptions or knowledge about population-based uncertainties

setup correction, new margin&plan etc.

patient individual uncertainties (setup errors, organ motion…)

estimation/modeling of errors/uncertainties

“Feedback-loop”! This makes it ‘adaptive RT’!

ESTRO IMRT course 2015 Adaptive Radiotherapy Brussels October 8th, 2015

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