Imaging for early stage breast cancer

Forward vs. inverse planning (15 patients)

Geom + Graph opt.

Inverse HIPO

Diff. (%)

CTV - V100 (%)

91

91

0

non-target breast V100 (%)

1.7

1.2

- 29

COIN

0.71

0.77

+ 8

DNR

0.37

0.35

- 6

ipsilat. lung - D

(%)

35.8

34.0

- 5

1ccm

skin - D

(%)

52.5

52

- 1

1ccm

ribs - D

(%)

41.4

37.5

- 9

1ccm

heart - D

(%)

18.0

15.3

- 15

1ccm

contralat. lung - D

(%)

3.7

3.4

- 8

1ccm

contralat. breast - D

(%)

3.0

2.6

- 13

1ccm

Diff.=(HIPO-Geom)/Geom