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Treatment plans evaluated in this study. For each plan, the dose was delivered using a pencil beam scanning (PBS) system. Proton minibeams (pMBRT) were shaped with a multislit collimator.
| Plan | Technique | Calculation method | ctc distance | |
|---|---|---|---|---|
| Glioma | 1 | Standard PT (PBS) | ECLIPSE | — |
| 2 | Standard PT (PBS) | MC | — | |
| 3 | pMBRT | MC | 4 mm | |
| 4 | pMBRT | MC | 6 mm | |
| Meningioma | 1 | Standard PT (PBS) | ECLIPSE | — |
| 2 | Standard PT (PBS) | MC | — | |
| 3 | pMBRT | MC | 4 mm | |
| 4 | pMBRT | MC | 6 mm |
