Table 4 Comparison of the heart (a) and left lung (b) FB versus BH Feasibility Dose Volume Histogram (FDVH) red curves

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

Heart

7.2 ± 5.1

15.1 ± 6.5

− 54.5 (− 25.0; − 50.0)

0.013

Left Lung

21.3 ± 5.8

25.8 ± 5.4

− 21.4 (0.0; − 46.4)

0.046

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

Heart

0.8 ± 1.0

1.0 ± 1.5

− 2.1 (− 1.0; − 4.0)

0.033

Left Lung

3.8 ± 0.7

4.0 ± 1.2

− 10.0 (− 5.0; − 22.0)

0.068

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

Heart

1.5 ± 0.7

2.5 ± 0.8

− 35.7 (− 19.4; − 73.3)

0.028

Left Lung

3.4 ± 0.7

3.9 ± 0.7

− 15.1 (− 4.0; − 23.3)

0.076