2017_SBRT_Course Book

Margin definition DT patients

Patient

EPID TE (mm)

XRLog TE (mm)

D (mm)

DTP001 DTP002 DTP003 DTP004 DTP005

3.3 7.0 3.5 4.5 4.6

3.4 6.0 4.0 4.7 5.1

+0.2 -1.0 +0.5 +0.2 +0.5

• Obviously, population-based o r process-based treatment margins are not the way to go!!! • We need individualized approaches, with real-time adaptation.

SBRT 2017 - D. Verellen