319 / 1674
Moon et al, R&O 2009
50% of prescribed dose to non-target breast:
Proton mean 16.5 %
Tomo mean 22.8%
IMRT mean 33.3%
3D CRT mean 40.9%
Average lung receiving 20% of prescribed dose
Proton 0.4%
IMRT 2.3%
3D CRT 6.0%
Tomo 14.2%
P<0.001
P<0.001
Comparison of 4 different external beam RT techniques:
3D CRT, IMRT, helical Tomotherapy, proton beam therapy
N=30 patients
Target
Non-target breast
Lung