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Comparison between the peripheral dose values measured in the CyberKnife treatments before and after the supplemental shielding was installed.
| Distance from the target (cm) | CyberKnife preshielding dose (mGy) | CyberKnife postshielding dose (mGy) | Dose reduction after shielding application (%) |
|---|---|---|---|
| 30.5 | 27.5 | 9.1 | 66.9 |
| 43 | 17.5 | 7.7 | 56.0 |
| 53 | 15 | 8.3 | 44.7 |
| 75.5 | 10 | 5.8 | 42.0 |
| 80 | 10 | 5.8 | 42.0 |
