Skip to main content
. 2017 Oct 26;44(12):6138–6147. doi: 10.1002/mp.12610

Table 1.

Comparison of tumor dose distribution assuming a fixed RBE value of 1.1. The new model RO(BS) and the conventional model RO are almost the same in quality of tumor dose coverage, homogeneity, and robustness

Index Scenario Case 1 Case 2 Case 3 Case 4 Case 5
RO(BS) RO RO(BS) RO RO(BS) RO RO(BS) RO RO(BS) RO
D95%, Gy[RBE] Nominal 75.8 75.9 46.5 46.6 59.8 59.8 59.6 59.6 44.5 44.8
Max 75.8 75.9 46.5 46.6 59.9 59.9 59.6 59.6 44.5 44.8
Min 75.2 75.6 45.2 45.7 59.4 59.6 58.3 58.2 44.2 44.5
D5%–D95%, Gy[RBE] Nominal 1.4 1 3.6 3.3 0.9 0.9 3.9 3.8 1.8 1.3
Max 1.7 1.1 4.6 4 1.2 1.1 4.6 4.5 2 1.5
Min 1.3 0.8 3.6 3.3 0.9 0.9 3.6 3.6 1.7 1.3
D95% DVH band, Gy[RBE] 0.6 0.3 1.3 0.9 0.5 0.3 1.3 1.4 0.3 0.3
D50% DVH band, Gy[RBE] 0.2 0.2 0.4 0.2 0.4 0.4 0.2 0.2 0.2 0.2
D5% DVH band, Gy[RBE] 0.6 0.4 0.6 0.7 0.5 0.4 1.3 1.5 0.3 0.3
Case 6 Case 7 Case 8 Case 9 Case 10
RO(BS) RO RO(BS) RO RO(BS) RO RO(BS) RO RO(BS) RO
D95%, Gy[RBE] Nominal 76.6 76.8 59.5 59.4 56.7 56.7 44.4 44.5 59.7 59.8
Max 76.7 76.8 59.5 59.4 57.2 57.2 44.4 44.5 59.7 59.8
Min 75.2 75.4 53.7 53.7 55.7 55.8 43.2 43.7 58 58.7
D5%–D95%, Gy[RBE] Nominal 4.3 4.3 7.4 7.6 8.5 8.4 3.3 3.2 2.9 2.6
Max 8 7.8 12.3 12.3 9.2 9 3.9 3.6 2.5 3.1
Min 3.8 3.1 7.4 7.6 7.9 7.7 3.3 3.1 2.9 2.4
D95% DVH band, Gy[RBE]  1.5 1.4 5.8 5.7 1.5 1.4 1.2 0.8 1.7 1.1
D50% DVH band, Gy[RBE]  0.3 0.2 1.4 1.4 1.1 1.1 0.9 0.6 0.4 0.3
D5% DVH band, Gy[RBE] 3.7 3.7 1.5 1.5 1.9 1.7 1 0.8 1.5 1.6

DVH, dose–volume histogram.