TABLE V.
Imaging dose data for the Elekta XVI system. Measurements were acquired for the full rotation Pelvis M20 protocol, full rotation Chest M20 protocol, and partial rotation Prostate Seed S10 protocol.
| Elekta XVI | |||||||
|---|---|---|---|---|---|---|---|
| Pelvis M20 | Chest M20 | Prostate Seed S10 | |||||
| Additional 4 cm | Additional 4 cm | Additional 4 cm | |||||
| Location | Nominal thickness (cGy) | diameter (cGy) | Nominal thickness (cGy) | diameter (cGy) | Nominal thickness (cGy) | diameter (cGy) | |
| Interior | Anterior | 2.32 ± 0.12 | 1.85 ± 0.07 | 2.49 ± 0.13 | 2.00 ± 0.10 | 0.45 ± 0.03 | 0.33 ± 0.03 |
| Posterior | 2.34 ± 0.12 | 1.76 ± 0.06 | 2.44 ± 0.12 | 1.80 ± 0.09 | 0.29 ± 0.03 | 0.17 ± 0.02 | |
| Left | 1.65 ± 0.08 | 1.40 ± 0.05 | 1.63 ± 0.08 | 1.43 ± 0.07 | 0.48 ± 0.03 | 0.34 ± 0.03 | |
| Right | 1.92 ± 0.10 | 1.54 ± 0.06 | 1.92 ± 0.10 | 1.56 ± 0.08 | 0.21 ± 0.02 | 0.14 ± 0.01 | |
| Center | 2.14 ± 0.11 | 1.56 ± 0.06 | 2.15 ± 0.11 | 1.68 ± 0.08 | 0.33 ± 0.03 | 0.21 ± 0.02 | |
| Surface | Anterior | 2.73 ± 0.14 | 2.21 ± 0.11 | 2.41 ± 0.12 | 2.22 ± 0.11 | 0.66 ± 0.03 | 0.65 ± 0.03 |
| Posterior | 2.57 ± 0.13 | 2.17 ± 0.11 | 2.74 ± 0.14 | 2.15 ± 0.11 | 0.33 ± 0.03 | 0.30 ± 0.03 | |
| Left | 1.50 ± 0.08 | 1.49 ± 0.08 | 1.64 ± 0.08 | 1.48 ± 0.07 | 0.55 ± 0.03 | 0.50 ± 0.03 | |
| Right | 1.71 ± 0.09 | 1.72 ± 0.09 | 1.66 ± 0.08 | 1.80 ± 0.07 | 0.02 ± 0.01 | 0.01 ± 0.01 | |