Table 3.
Comparison of total beam-on time in minutes per patient SRS plan, assuming a dose rate of 1,400 MU/min for the linac-based options.
| Beam-On Time (min) | ||||
|---|---|---|---|---|
| Gamma Knife | Elements | HyperArc-VMAT | Manual-VMATA | Manual-VMATB |
| 158 | 4.09 | 5.95 | 3.80 | 9.99 |
| 149 | 5.27 | 7.08 | 3.14 | 7.28 |
| 97.7 | 5.63 | 4.49 | 4.71 | 9.13 |
| 182 | 5.77 | 6.53 | 7.32 | 9.61 |
| 128 | 5.96 | 6.41 | 4.85 | 7.47 |
| 156 | 5.39 | 5.87 | 4.13 | 7.24 |
| 143 | 4.61 | 5.35 | 4.95 | 8.41 |
| 162 | 5.24 | 6.86 | 4.74 | 8.29 |
| 160 | 4.75 | 6.73 | 4.29 | 7.96 |
| 166 | 6.08 | 6.53 | 6.08 | 7.60 |
| 111 | 3.17 | 4.34 | 3.55 | 6.52 |
| 116 | 3.88 | 6.84 | 3.43 | 7.48 |
| 146 | 3.96 | 5.16 | 3.05 | 6.36 |
| 111 | 4.22 | 6.07 | 4.04 | 7.83 |
| 113 | 4.27 | 7.39 | 4.85 | 10.1 |
| 141 | 4.52 | 5.60 | 4.82 | 7.06 |
| 140.0 ± 24.4 | 4.80 ± 0.849 | 6.08 ± 0.897 | 4.48 ± 1.09 | 8.02 ± 1.16 |
The last row lists the mean ± standard deviation across all 16 patients, per SRS treatment technique.