Particle Therapy 2017

0

54 Gy(RBE) Op+c Nerves and Chiasm

58 Gy(RBE) Brainstem Surface

OAR Constraint:

60 Gy(RBE) Op+c Nerves and Chiasm

64 Gy(RBE) Brainstem Surface

Influence of OAR Dose Constraints on Target Coverage Example: Chordoma of upper Clivus with small residual disease OAR Constraint:

Proton Therapy: 1.8 Gy(RBE) per fracCon CTV: 54 Gy(RBE); GTV 73.8 Gy(RBE)

Red : GTV’s

CTV not

shown