2016_Head & Neck COURSE BOOK

Fractionation principles

• Conventional fractionation : Dose per fraction 1.8-2.0 Gy, 5 fx/wk • Hyperfrationation : Dose per fraction <1.8 Gy • Hypofractionation : Dose per fraction >2.0 Gy • Split-course : A treatment break (weeks), resulting in prolonged overall treatment time • Accelerated fractionation : Reduced overall treatment time