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 H f i i D f i 2 0 G • ypo ract onat on : ose per ract on > . y • Split‐course : A treatment break (weeks),  resulting in prolonged overall treatment time A l t d f ti ti R d d ll • cce era e rac ona on : e uce overa  treatment time