1080 / 1674
Parameter
3D-CRT
Proton
PTV_Eval
V90 (%)
97
96
CTV
V90 (%)
100
100
Ipsilat. norm. breast
V50 (%)
44
27
Ipsilateral lung
V10Gy (%)
9
3
Heart
Max dose (Gy)
9
6
Skin
V50 (%)
40
28
Contralateral breast
Max dose (Gy)
2
0.1
Contralateral lung
Mean dose (Gy)
0.1
0.01
-
regarding target coverage the
two techniques are similar
-
multiple proton beams
spare more normal tissues than 3D-CRT
Results and conclusions
Wang et al. IJROBP 80:1464-72. 2011