OAR

Measured indices from DVH

Volume and doses for three breast irradiation techniques

Estimated P values for compared treatment techniques

TW (a)

FiF (b)

IMRT (c)

(a) vs (b)

(a) vs (c)

(b) vs (c)

Lung

V5

34.67

31.79

63.22

0.4909

0.0001

<0.0001

V10

25.16

23.95

51.22

0.7435

0.0002

<0.0001

V20

11.7

11.79

18.56

0.9592

0.0002

<0.0001

V30

10.1

8.25

10.48

0.3115

0.8101

0.1593

Dmean

8.73

7.268

13.93

0.1410

<0.0001

<0.0001

Heart

V5

12.75 (5 - 18.4)

10.3 (6 - 17)

66.4 (43 - 94)

0.1393

<0.0001

<0.0001

V10

5.48 (3.4 - 7.2)

4.93 (3.3 - 6.9)

30.4 (17 - 52)

0.3497

<0.0001

<0.0001

V20

4.23 (2.1 - 6.4)

3.81 (1.5 - 5.7)

10.26 (6.7 - 16)

0.5269

<0.0001

<0.0001

V30

2.36 (1.4 - 4)

1.99 (1 - 3.8)

0.86 (0.2 - 2)

0.3401

<0.0001

<0.0001

Dmean

3.54 (1.9 - 4.8)

2.89 (1.8 - 4.2)

11.92 (7.4 - 14.7)

0.1043

<0.0001

<0.0001

Coronary artery region

V5

54.02 (35.4 - 78.5)

50.8 (34 - 73.7)

73.33 (20 - 100)

0.8625

0.5493

0.4831

V10

41.23 (25.7 - 52)

39.73 (24.8 - 51.8)

52 (18 - 73)

0.9000

0.5996

0.5513

V20

27.5 (15.3 - 43)

22.9 (12.6 - 35.6)

8.857 (3.97 - 16.1)

0.2831

<0.0001

<0.0001

V30

16.1 (7.1 - 36.6)

17.79 (5.2 - 35.2)

5.27 (0.7 - 15.1)

0.7175

0.0067

0.0015

Dmean

17.16 (8.32.5)

15.3 (7.8 - 20.9)

18.4 (12.4 - 24.4)

0.3549

<0.0001

0.0950

Contralateral breast

V0.5

10.633 (6.9 - 16)

10.167 (7 - 13.5)

95 (94 - 96)

0.8954

<0.0001

0.0325

V1

1.233 (0.2 - 2.2)

1.133 (0.2 - 1.9)

87 (85 - 89)

0.9021

<0.0001

<0.0001

V2

0.35 (0.0 - 0.99)

0.41 (0.0 - 0.95)

51.47 (4.4 - 76)

0.8950

0.0957

0.0959

V3

0.435 (0 - 0.87)

0.4 (0 - 0.8)

42.67 (4.2 - 64)

0.9556

0.0928

0.0927