Table 1 Dose-volume constraints for the PTV and OAR
Target/Organ at risk | Median absorbed dose (D50%) (Gy) | Mean absorbed dose (Gy) | Dnear-min (D98%) (Gy) | D95% | Dnear-max (D2%) (Gy) |
|---|---|---|---|---|---|
PTV56 | 56 | - | ≥90% of prescribed dose | ≥95% of prescribed dose | - |
PTV70 | 70 | - | ≥90% of prescribed dose | ≥95% of prescribed dose | - |
PRV spinal cord | - |  | - | - | ≤50 |
PRV brainstem | - |  | - | - | ≤50 |
Contralateral parotid gland | - | ≤26 | - | - | - |
Ipsilateral parotid gland | - | ≤30 | - | - | - |
Oral cavity | - | ≤30 | - | - | - |
Larynx | - | ≤40 | - | - | - |
Lower PCM | - | ≤50 | - | - | - |
Cricopharyngeal muscle | - | ≤50 | - | - | - |
Cervical esophagus | - | ≤35 | - | - | - |
Mandible | - | - | - | - | D5% ≤ 70 |