964 / 1161
7 beams 60 segments
70
80
90
100
110
120
130
-40
-30
-20
-10
0
10
20
30
40
50
60
Dose difference (%)
Prescribed dose (Gy)
d
95
d
50
Treatment plan evaluation
Zwanenburg
et al.
ICCR 2010
biological gradients match the dose gradients reasonably well