Particle Therapy 2017

• Imaging 1950-1970s – Indirect target imaging • Bone, air • Contrast

– Radio-opaque markers-spacers – Target edges • Calculation • Informed guess • Immobile targets – Nearby bone – Superficial

– No moving organs in path

Adult

Pediatric

Historical niche of proton therapy indications • Skull base, paraspinal and sacral chordoma and (chondro)sarcoma • Glioma