Research Article
Accuracy of Dose Delivery in Multiple Breath-Hold Segmented Volumetric Modulated Arc Therapy: A Static Phantom Study
Table 2
The mean, the SD, the minimum, and the maximum of the segmental MUs for the five cases with the five different beam-on-times between interrupts.
| | Beam-on-time between interrupts (s) | Case | Mean | SD | Min. | Max. |
| | 10 | 1 | 17.5 | 6.6 | 8.9 | 36 | | 2 | 27.9 | 4.6 | 15.7 | 31.1 | | 3 | 28.0 | 7.0 | 10.2 | 38.6 | | 4 | 24.6 | 10.9 | 12.6 | 55.8 | | 5 | 19.1 | 5.9 | 11.4 | 40.3 |
| | 15 | 1 | 30.3 | 11.0 | 14.5 | 54.0 | | 2 | 48.8 | 9.3 | 26.9 | 57.6 | | 3 | 49.0 | 10.7 | 34.0 | 65.3 | | 4 | 43.7 | 16.9 | 25.1 | 83.6 | | 5 | 32.6 | 8.7 | 20.0 | 51.2 |
| | 20 | 1 | 42.9 | 18.8 | 26.5 | 91.4 | | 2 | 65.1 | 20.5 | 23.9 | 79.0 | | 3 | 65.3 | 21.9 | 12.8 | 80.7 | | 4 | 60.5 | 25.3 | 25.8 | 112.1 | | 5 | 46.2 | 13.1 | 29.4 | 75.0 |
| | 30 | 1 | 64.3 | 19.8 | 39.8 | 102.1 | | 2 | 97.7 | 40.5 | 37.4 | 124.3 | | 3 | 117.7 | 21.8 | 94.2 | 149.2 | | 4 | 98.3 | 38.0 | 63.9 | 171.2 | | 5 | 69.3 | 22.8 | 25.4 | 97.7 |
| | 40 | 1 | 85.7 | 22.0 | 63.7 | 119.7 | | 2 | 130.2 | 56.3 | 65.4 | 166.3 | | 3 | 147.1 | 25.8 | 115.5 | 178.6 | | 4 | 131.1 | 53.5 | 75.0 | 220.7 | | 5 | 110.8 | 17.3 | 92.2 | 138.0 |
|
|
