Particle Therapy 2017

Frac%ona%on in radiotherapy

Conventinal fractionation (dose/fraction: 1.8 – 2 Gy) Stereotactic body radiation therapy (SBRT) - treatment of tumors with 1 to 8 dose fractions (dose/fraction > 2.5) Hyperfractionation (dose/fraction: > 1.8, accelerated)

Hypofractionation (particle therapy) - doses of 2.5 Gy and above Stereotactic radiosurgery (SRS) - entire dose is given in a single fraction - extreme examples of SBRT (ablative doses of RT)