Table 4.
B-Spline (B column) and SICLE (S column) back-and-forth dose mapping self-consistency comparison for DVFR–S with DVFS–R, DVFR–S with PIDVFS–R, and PIDVFR–S with DVFS–R mappings. The DVFs are generated for a set of prostate images (I0,I1,…,I7). The PIDVF approach has 1.5–2.5 times smaller deviations for B-Spline and similar performance for SICLE.
| R and S | Statistics of dose differences by DVFS–R with DVFR–S (cGy) | Statistics of dose differences by PIDVFS–R with DVFR–S (cGy) | Statistics of dose differences by DVFS–R with PIDVFR–S (cGy) | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Maximum | Average | Maximum | Average | Maximum | Average | |||||||
| B | S | B | S | B | S | B | S | B | S | B | S | |
| I0 and I1 | 952.0 | 200.6 | 35.6 | 17.8 | 254.1 | 213.2 | 15.6 | 15.5 | 223.1 | 208.1 | 14.6 | 17.5 |
| I0 and I2 | 1055.5 | 187.9 | 42.7 | 14.5 | 168.4 | 184.9 | 20.4 | 17.1 | 149.1 | 186.1 | 20.4 | 18.5 |
| I0 and I3 | 540.9 | 243.7 | 27.3 | 16.8 | 117.6 | 212.7 | 16.8 | 13.1 | 163.2 | 200.5 | 17.2 | 14.6 |
| I0 and I4 | 719.9 | 197.5 | 32.0 | 16.6 | 178.8 | 198.2 | 18.3 | 15.8 | 153.7 | 187.4 | 17.8 | 15.9 |
| I0 and I5 | 374.9 | 191.2 | 26.9 | 15.1 | 139.7 | 191.6 | 19.8 | 14.4 | 188.8 | 190.8 | 19.9 | 14.6 |
| I0 and I6 | 349.3 | 268.8 | 25.0 | 16.5 | 343.7 | 268.5 | 14.6 | 18.1 | 262.3 | 255.6 | 14.4 | 15.4 |
| I0 and I7 | 364.3 | 157.7 | 21.9 | 16.7 | 180.7 | 157.1 | 14.4 | 18.4 | 114.8 | 165.9 | 14.6 | 16.2 |