Energy | Cases | Average (%) ± STD (%) | Range (%) | |
---|---|---|---|---|
X6 MV | 152 | 1.4 ± 1.0 | −3.4, 6.0 | 0.0 |
X15 MV | 128 | 2.5 ± 0.6 | −0.2, 4.5 | 0.0 |
Energy | Cases | Average (%) ± STD (%) | Range (%) | |
---|---|---|---|---|
X6 MV | 152 | 1.3 ± 1.9 | −2.7, 10.6 | 0.0 |
X15 MV | 128 | 2.1 ± 1.0 | −0.7, 5.6 | 0.0 |
Energy | Plans | Average (%) ± STD (%) | Range (%) | |
---|---|---|---|---|
Mean dose with inhomogeneity correction | ||||
X6 MV | 24 | 1.3 ± 0.5 | 0.1, 2.1 | 0.000 |
X15 MV | 24 | 2.6 ± 0.6 | 1.6, 4.5 | 0.000 |
Dose at isocenter with inhomogeneity correction | ||||
X6 MV | 24 | 1.1 ± 1.5 | −1.0, 6.8 | 0.000 |
X15 MV | 24 | 2.2 ± 1.1 | 0.4, 5.2 | 0.000 |
Mean dose without inhomogeneity correction | ||||
X6 MV | 24 | 0.4 ± 0.4 | −0.8, 1.0 | 0.000 |
X15 MV | 24 | 1.0 ± 0.3 | 0.5, 1.6 | 0.000 |
Dose in isocenter without inhomogeneity correction | ||||
X6 MV | 24 | 0.2 ± 0.7 | −1.0, 2.4 | 0.110 |
X15 MV | 24 | 0.5 ± 0.9 | −2.1, 2.8 | 0.001 |
Energy | Number of treatment plans |
---|---|
X6 MV | 152 |
X15 MV | 128 |
No. | X6 MV | X15 MV | ||
---|---|---|---|---|
Polystyrene phantom | ||||
1 | 2.2 | 0.3 | 2.2 | 0.8 |
2 | 2.2 | −0.5 | 2.8 | −0.4 |
3 | 2.0 | 0.2 | 3.0 | 0.4 |
4 | 2.4 | 0.4 | 2.8 | 0.1 |
5 | 2.1 | −0.1 | 2.1 | −0.3 |
6 | 2.1 | −0.1 | 2.3 | −0.4 |
Polystyrene with bone equivalent material | ||||
7 | 2.5 | 1.4 | 2.5 | 1.4 |
8 | 2.3 | 0.5 | 3.6 | 0.8 |
9 | 2.6 | 0.6 | 2.6 | −0.1 |
10 | 2.8 | 0.8 | 4.0 | 1.3 |
11 | 2.8 | 0.8 | 3.5 | 1.0 |
12 | 2.4 | 0.6 | 3.4 | 0.8 |
Polystyrene with lung equivalent material | ||||
13 | 2.9 | 1.3 | 1.5 | 0.7 |
14 | 3.3 | −0.3 | 3.1 | −0.4 |
15 | 1.7 | −0.2 | 2.3 | −0.2 |
16 | 2.9 | 1.4 | 2.9 | 0.8 |
17 | 1.8 | 0.6 | 2.2 | 0.3 |
18 | 1.6 | 0.2 | 2.3 | 0.2 |
No. | Number of fields | Gantry directions | Size of field (cm × cm) | Wedge | Shape of field |
---|---|---|---|---|---|
Polystyrene | |||||
1 | 1 | 0° | 3 × 3 | None | square |
2 | 1 | 0° | 8 × 8 | None | square |
3 | 3 | 0°, 90°, 270° | 8 × 8, 8 × 8, 8 × 8 | None | square |
4 | 3 | 0°, 70°, 290° | 8 × 8, 8 × 8, 8 × 8 | None | circular |
5 | 3 | 0°, 70°, 290° | 8 × 8, 8 × 8, 8 × 8 | none, 45 L, 45 R | circular |
6 | 3 | 0°, 70°, 290° | 8 × 8, 8 × 8, 8 × 8 | none, 45 OUT, 45 IN | circular |
Polystyrene with bone equivalent material | |||||
7 | 1 | 0° | 3 × 3 | None | square |
8 | 1 | 0° | 8 × 8 | None | square |
9 | 3 | 0°, 90°, 270° | 8 × 8, 10 × 8, 10 × 8 | None | square |
10 | 3 | 0°, 45°, 315° | 8 × 8, 9.5 × 8, 9.5 × 8 | None | circular |
11 | 3 | 0°, 45°, 315° | 8 × 8, 9 × 8, 9 × 8 | none, 45 L, 45 R | circular |
12 | 3 | 0°, 45°, 315° | 8 × 8, 8 × 9, 8 × 9 | none, 45 OUT, 45 IN | circular |
Polystyrene with lung equivalent material | |||||
13 | 1 | 0° | 3 × 3 | None | square |
14 | 1 | 0° | 8 × 8 | None | square |
15 | 3 | 0°, 90°, 270° | 8 × 8, 9.5 × 8, 9.5 × 8 | None | square |
16 | 3 | 0°, 50°, 310° | 8 × 8, 9 × 8, 9 × 8 | None | circular |
17 | 3 | 0°, 60°, 300° | 8 × 8, 9 × 8, 9 × 8 | none, 45 L, 45 R | circular |
18 | 3 | 0°, 50°, 310° | 8 × 8, 8 × 9, 8 × 9 | none, 45 OUT, 45 IN | circular |