Table 5 Comparison of the heart (a) and left lung (b) FB versus BH Feasibility Dose Volume Histogram (FDVH) orange curves

^a \({{\text{V}}}_{5{\text{Gy}}}\) (%)

Heart

29.9 ± 4.4

35.8 ± 4.8

− 16.7 (− 7.9; − 30.6)

0.003

Left Lung

35.5 ± 4.7

39.8 ± 3.5

− 13.7 (− 0.5; − 36.4)

0.044

^a \({{\text{V}}}_{20{\text{Gy}}}\) (%)

Heart

1.7 ± 1.0

1.8 ± 2.4

− 1.7 (− 0.2; − 5.5)

0.024

Left Lung

12.3 ± 1.4

16.2 ± 1.7

− 22.2 (− 20.0; − 30.0)

0.068

^b \({{\text{D}}}_{{\text{m}}}\) (Gy)

Heart

4.4 ± 0.7

5.3 ± 0.8

− 16.0 (− 7.8; − 36.2)

0.042

Left Lung

6.2 ± 1.6

6.6 ± 0.6

− 7.1 (− 14.5; − 19.7)

0.087