Table 1.
RapidArc planning on an ArcCHECK phantom for all structures in comparison to the American Association of Physicists in Medicine task group 119 report for the Clinac-iX (6 MV) and TB-STx (6 MV_filtered beam and 6 MV flattening filter-free beam), respectively
| Parameters | Plan goal (cGy) | Clinac-iX | TB-STx | TG 119 6 MV Mean±SD |
||||
|---|---|---|---|---|---|---|---|---|
| 6MV FB | 6MV FB | 6 MV FFFB | ||||||
| AAA | AXB | AAA | AXB | AAA | AXB | |||
| C Shape (easier) | ||||||||
| PTV D95 | 5000 | 5001.4 | 4951.8 | 5003.8 | 4939.3 | 5005.1 | 4895.5 | 5010±17 |
| PTV D10 | <5500 | 5299.2 | 5260.5 | 5243.9 | 5170.5 | 5241.1 | 5132.7 | 5440±52 |
| CORE D10 | <1000 | 2271.1 | 2229.1 | 2088.6 | 1932.2 | 2131.2 | 1963.9 | 2200±314 |
| C Shape (hard) | ||||||||
| PTV D95 | 5000 | 5003.2 | 4950.7 | 5000.5 | 4939.7 | 5000.5 | 4907.1 | 5011±16.5 |
| PTV D10 | <5500 | 5362.3 | 5326.1 | 5310.9 | 5237.7 | 5310.0 | 5212.2 | 5702±220 |
| CORE D10 | <1000 | 1715.3 | 1648.7 | 1418.3 | 1322.6 | 1447.9 | 1300.5 | 1630±307 |
| H and N | ||||||||
| PTV D90 | 5000 | 5001.8 | 4963.2 | 5001.4 | 4915.7 | 5003.3 | 4895.0 | 5028±58 |
| PTV D99 | >4650 | 4846.7 | 4786.5 | 4849.6 | 4780.3 | 4854.2 | 4761.9 | 4704±52 |
| PTV D20 | <5500 | 5143.5 | 5096.5 | 5143.2 | 5053.9 | 5150.2 | 5041.5 | 5299±93 |
| Cord (dmax) | <4000 | 3408.3 | 3359.4 | 3417.2 | 3250.8 | 3487.6 | 3297.1 | 5741±250 |
| Rt Parotid D50 | <2000 | 1769.6 | 1754.3 | 1744.9 | 1638.1 | 1749.8 | 1655.1 | 1798±184 |
| Lt Parotid D50 | <2000 | 1860.9 | 1819.8 | 1723.4 | 1612.2 | 1715.9 | 1613.3 | 1798±184 |
| Multi-target | ||||||||
| Central D99 | >5000 | 4897.9 | 4759.2 | 4977.9 | 4852.1 | 4979.3 | 4808.6 | 4955±162 |
| Central D10 | <5300 | 5296.3 | 5303.1 | 5287.7 | 5285.7 | 5296.1 | 5239.4 | 5455±173 |
| Superior D99 | >2500 | 2573.3 | 2570.1 | 2598.9 | 2530.2 | 2591.5 | 2497.8 | 2516±85 |
| Superior D10 | <3500 | 2910.5 | 2892.1 | 2935.1 | 2867.9 | 2912.6 | 2869.3 | 3412±304 |
| Inferior D99 | >1250 | 1320.7 | 1286.5 | 1295.5 | 1218.9 | 1312.7 | 1252.7 | 1407±185 |
| Inferior D10 | <2500 | 1680.1 | 1649.9 | 1666.4 | 1620.8 | 1669.4 | 1606.1 | 2418±272 |
| Prostate | ||||||||
| Prostate D95 | >7560 | 7628.3 | 7531.9 | 7584.1 | 7508.8 | 7571.9 | 7467.8 | 7566±21 |
| Prostate D5 | <8300 | 8107.5 | 8086.1 | 7993.9 | 7905.3 | 7982.3 | 7861.4 | 8143±156 |
| Rectum D30 | <7000 | 4890.3 | 4810.8 | 4661.8 | 4509.6 | 4738.5 | 4572.1 | 6536±297 |
| Rectum D10 | <7500 | 7437.7 | 7247.3 | 7383.9 | 7244.5 | 7375.2 | 7207.9 | 7303±150 |
| Bladder D30 | <7000 | 2944.9 | 2880.1 | 2760.3 | 2646.3 | 2781.3 | 2669.2 | 4304±878 |
| Bladder D10 | <7500 | 5096.4 | 5045.5 | 4857.3 | 4751.8 | 4685.1 | 4563.1 | 6269±815 |
AAA: Analytical anisotropic algorithm, AXB: Acuros XB, FFF: Flattening filter-free, SD: Standard deviation, TB: TrueBeam