Imaging for early stage breast cancer

Results and conclusions

3D-CRT %

IMRT %

Tomo %

Proton %

ipsilat. non-PTV breast : V50

40.9

33.3

22.8

16.5

ipsilat. lung: V20

6.0

2.3

14.2

0.4

heart : V20

1.5

1.2

8.0

0.0

- all four techniques showed acceptable coverage of the PTV - IMRT spared more normal breast tissue and lung than 3D-CRT - non-PTV breast sparing was achieved at the cost of considerable dose exposure to the lung and heart in Tomo - proton beam irradiation provided the less dose to organs at risk

Moon et al. Radiother Oncol 90:66-73. 2009