Table 2 Summary of dose constrains
Structure | Dosimetric parameter | Constrains per protocol |
|---|---|---|
PTV1 | D98% (Dnear min) | > 95% (34.44 Gy) |
CTV1– PRV Urethra | D98% (Dnear min) | > 95% (34.44 Gy) |
D95% (Dnear min) | > 100% (36.25 Gy) | |
PTV2 | V95% (47.5 Gy) | > 95% |
V105% (52.5 Gy) | < 5% | |
Rectum | Maximum dose (0.03 cc) | ≤ 39 Gy |
Median dose | ≤ 18.1 Gy | |
V18Gy | ≤ 50% | |
V29Gy | ≤ 20% | |
V36Gy | < 1 cc (alternative 2 cc) | |
PRV Rectum | Maximum dose (0.03 cc) | ≤ 41 Gy |
Bladder | Maximum dose (0.03 cc) | ≤ 39 Gy |
V18.1 Gy | ≤ 40% | |
V36Gy | ≤ 10% | |
V37Gy | < 5 cc (alternative 10 cc) | |
PRV Urethra | Maximum dose (0.03 cc) | ≤ 35.25 Gy (alternative 36.25 Gy) |
Bulbar Urethra | Maximum dose (1 cc) | ≤ 40 Gy |
Bladder trigone | Maximum dose (0.1 cc) | ≤ 38 Gy |
Sigma Bowel | V20Gy | < 1% |
Penile bulb | Maximum dose (0.03 cc) | < 40 Gy |
V21.6 Gy | < 3 cc | |
Femoral Heads | V14.5 Gy | ≤ 5% |
Maximum dose (0.03 cc) | < 32.4 Gy |