Table 2 Dosimetric comparison between coverage and OAR doses with DIBH versus FB

PTV

D95 (%)

95

95

–

V95 (%)

95

95

–

D05 (%)

111.9 ± 2.2

110.4 ± 0.8

0.07

IMN

D95 (%)

99.3 ± 4.2

100.9 ± 0.8

0.48

Ipsilateral Lung

V20 Gy (%)

28.2 ± 4.7

26.4 ± 3.9

0.1

V10 Gy (%)

47.1 ± 6.9

44.7 ± 6.4

0.03

V05 Gy (%)

77.2 ± 8

71.4 ± 7.5

0.01

Mean (Gy)

15.7 ± 1.8

14.9 ± 1.6

0.03

Contralateral Lung

V20 Gy (%)

0.9 ± 1.5

0.7 ± 0.9

0.63

V05 Gy (%)

48.5 ± 12.9

33.1 ± 18.3

< 0.01

Total Lung

V20 Gy (%)

13.1 ± 2.6

12.4 ± 2.1

0.12

V10 Gy (%)

28.6 ± 6.1

24.6 ± 5.4

0.01

V05 Gy (%)

61.3 ± 9.7

50.5 ± 12.2

< 0.01

Mean (Gy)

10.3 ± 1.3

9.2 ± 1.4

< 0.01

Heart

V25 Gy (%)

3.1 ± 2.1

1 ± 1.5

< 0.01

V15 Gy (%)

10 ± 4.4

2.9 ± 2.9

< 0.01

V05 Gy (%)

64.9 ± 14.2

35.3 ± 9.9

< 0.01

Mean (Gy)

8.2 ± 1.4

5.3 ± 1

< 0.01

Dmax (Gy)

47.7 ± 7.5

38.3 ± 11.2

< 0.01

LAD

Dmax (Gy)

40.7 ± 12.1

30.8 ± 12.6

0.02

Contralateral Breast/Implant

V04 Gy (%)

48.5 ± 15.2

35.3 ± 12.9

< 0.01

V03 Gy (%)

67.3 ± 16.8

49 ± 14.8

< 0.01

Mean (Gy)

5.7 ± 1.4

5.1 ± 1.4

0.16

Esophagus

Dmax (Gy)

35.1 ± 8

33.1 ± 11

0.56

Thyroid

Mean (Gy)

13.4 ± 1.4

13.9 ± 2.1

0.87

Brachial Plexus

Dmax (Gy)

51 ± 1.1

51.5 ± 1.3

0.29