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Organs at risk constraints.
| OARs | Statistics | Constraints |
|---|---|---|
| Lungs | Mean dose (Gy) | Near 15 Gy and <20 Gy |
| V5 (%) | ALARAa | |
| V10 (%) | ALARA | |
| V20 (%) | <30% | |
| V30 (%) | <20% | |
| Heart | Mean dose (Gy) | ALARA |
| V30 (%) | ALARA | |
| V40 (%) | <15% | |
| Spinal canal | D2% (Gy) | <45 Gy |
As low as reasonable achievable.
