Table 2.
A part of the dosimetric comparison for patient #1 between ERVO, ERSO, and REAS methods with D90 goals set to 85–100 Gy. The average delivery time was computed for all D90 goals in the range with 1 Gy spacing, and if the specified D90 goal could not be achieved, the delivery time with the best D90 is used instead and the delivery time will be marked with an * mark.
| Achieved | Bladder | Sigmoid | Rectum | Delivery | Azimuthal emission | ||
|---|---|---|---|---|---|---|---|
| D90 goal (Gy) | D90 (Gy) | D2cc (Gy) | D2cc (Gy) | D2cc (Gy) | time (min/fx) | angle Δφ (deg) | |
| 85 | ERVO | 85.00 | 87.57 | 52.45 | 70.28 | 4.96 | 303.75 |
| ERSO | 85.00 | 88.69 | 52.63 | 70.20 | 5.02 | 303.75 | |
| REAS | 85.00 | 86.54 | 55.77 | 74.22 | 4.89 | 303.75 | |
| 90 | ERVO | 90.00 | 89.41 | 53.67 | 73.15 | 5.43 | 292.50 |
| ERSO | 90.00 | 84.34 | 57.07 | 73.42 | 5.70 | 281.25 | |
| REAS | 90.00 | 87.37 | 55.51 | 73.11 | 5.62 | 281.25 | |
| 95 | ERVO | 95.00 | 89.13 | 57.60 | 74.36 | 7.08 | 236.25 |
| ERSO | 94.43* | 83.03 | 55.60 | 74.74 | 23.95 | 67.50 | |
| REAS | 95.00 | 82.85 | 55.67 | 74.62 | 7.69 | 213.75 | |
| 100 | ERVO | 100.00 | 88.67 | 57.31 | 74.21 | 16.92 | 101.25 |
| ERSO | 94.43* | 83.03 | 55.60 | 74.74 | 23.95 | 67.50 | |
| REAS | 100.00 | 89.94 | 55.90 | 74.03 | 19.18 | 90.00 | |
| Average delivery time ERVO: 7.9 min/fx, ERSO: 13.5 min/fx, REAS: 8.7 min/fx | |||||||