Table 3 Mean institutional dose distributions and dose requirements of the EORTC 1420 protocol for the different volumes
Volumes | Mean institutional doses (SD) | Dose requirements given by the EORTC 1420 Protocol |
|---|---|---|
Planning organ-at-risk volume of the brainstem | Dmax = 19.96 (9.12) | Dmax < 35 Gy |
Cervical esophagus | Dmean = 14.75 (5.43) | Dmean < 30 Gy |
Contralateral parotid | Dmean = 5.53 (1.79) | Dmean < 5–10 Gy |
Cricoid pharyngeal inlet | D2% = 47.34 (6.98) | D2% < 66 Gy |
Contralateral sub-mandibular gland | Dmean = 7.82 (1.67) | Dmean < 10 Gy |
Extended oral cavity-PTV | Dmean = 27.54 (4.66) | Dmean < 30–35 Gy |
Glottis | Dmean = 16.26 (3.56) | Dmean < 20 Gy |
Ipsilateral parotid | Dmean = 25.60 (5.83) | Dmean < 30–35 Gy |
Mandible | D2% = 56.92 (4.59) | D2% < 66 Gy |
Pharyngeal constrictor muscles | Dmean = 33.75 (3.95) | Dmean < 30–40 Gy |
Prophylactic PTV | D95% = 52.91 (0.81) | D95% > 51.7 Gy |
Therapeutic PTV | D95% = 63.89 Gy (1.04) | D95% > 62.7 Gy |
Planning organ-at-risk volume of the spinal cord | Dmax = 36.95 (4.05) | Dmax < 40 Gy |
Supraglottic larynx | Dmean = 23.56 (4.90) | Dmean < 45–50 Gy |
Thyroid gland | Dmean = 23.26 (2.05) | Dmean < 25 Gy |