Table 1.
Dose prescription and OAR constraints used for the planning.
| Type | Parameter | Prescription or constraints | |
|---|---|---|---|
| Target volume | DIL | D95% | 95% of the PD to DIL |
| Whole prostate | D95% | 100% of PD (35 Gy) | |
| PTV | D99% | 80% of PD (28 Gy) | |
| OAR | Rectum | Dmax | 100% of the PD (35 Gy) |
| V88% of PD (30.8 Gy) | < 1 cc | ||
| Bladder | Dmax | 110% of the PD (38.5 Gy) | |
| V102% of the PD (35.7 Gy) | < 1 cc | ||
| Urethra | Dmax | No boost: 110% of the PD (38.5 Gy) | |
| DIL_40: 115% of the PD (40.25 Gy) | |||
| DIL_45: 120% of the PD (42 Gy) | |||
DIL dominant intraprostatic lesion, OAR organ at risk, PD prescription dose, PTV planning target volume.