Table 1 Dose-volume constraint set used for inverse planning optimization
From: Dosimetric comparison between coplanar and non coplanar field radiotherapy for ethmoid sinus cancer
Volume | Constraint |
|---|---|
PTV | V 95% > 95% prescribed dose |
CTV | V 99% > 95% prescribed dose |
Spinal cord | D max < 40 Gy |
Ext cord | D max < 45 Gy |
Brainstem | D max < 55 Gy |
Frontal lob | D max < 60 Gy |
Parietal lob | D max < 60 Gy |
Hypophyse | D max < 55 Gy |
Temporomandibular joints | D max < 60 Gy |
Parotid | D mean < 26 Gy |
| Â | V 50% < 30 Gy |
Lens | D max < 12 Gy |
Optic nerve | D max < 55 Gy |
Chiasma | D max < 55 Gy |
Retina | D max < 55 Gy |
Lachrymal glands | No constraint |