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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