Table 4 Comparison of average dose parameters for VMAT with DIBH between different dosimetric studies

Prescription

40 Gy/15x

40 Gy/15x

42.56 Gy/16x

40 Gy/15x

50 Gy/25x

Structure

Heart D_Mean (Gy)

2.8 ± 0.9

2.9 ± 0.9

4.1 ± 1.4

2.6 ± 1.0

3.3 ± 0.9

Heart V_5Gy

9.6 ± 3.4

9.8 ± 3.3

–

–

12.8 ± 5.1

Heart V_17Gy

2.4 ± 2.5

2.6 ± 2.5

–

1.8 ± 2.1

–

Ipsilateral lung V_17Gy (%)

25.2 ± 3.4

25.3 ± 3.8

–

28.2 ± 4.5

–

Lungs D_Mean (Gy)

5.9 ± 0.6

5.8 ± 0.4

7.5 ± 1.4

–

–

C. Lung V_5Gy (%)

3.6 ± 2.1

2.4 ± 2.0

11.2 ± 6.7

–

8.4 ± 9.0

C. Breast D_Mean (Gy)

3.6 ± 0.7

3.0 ± 0.7

2.5 ± 1.0

1.5 ± 0.9

3.9 ± 2.2