Biological comparison | Structures | NTCP value | NTCP value | Paired t-test p |
|---|
Rectum: ar VS. br | Rectum | 0.11 ± 0.12ar
| 0.33 ± 0.19br
| <0.01 |
Bladder | 0.14 ± 0.19ab
| 0.14 ± 0.19ab
| - |
Rectum: ar VS. cr | Rectum | 0.11 ± 0.12ar
| 0.01 ± 0.02cr
| <0.01 |
Bladder | 0.14 ± 0.19ab
| 0.14 ± 0.19ab
| - |
Bladder: ab VS. bb | Rectum | 0.11 ± 0.12ar
| 0.11 ± 0.12ar
| - |
Bladder | 0.14 ± 0.19ab
| 0.00 ± 0.00bb
| <0.01 |
- The superscripts of NTCP values denote the different biological models of rectum and bladder which listed in Table 3 used for IMRT optimization. ar: LKB with \( {D}_{50} \) =80Gy, \( \gamma \) =3.9, N = 0.06, M = 0.15 for rectum; br: LKB with \( {D}_{50} \) =81.8Gy, \( \gamma \) =3, N = 0.29, M = 0.22 for rectum; cr: Poisson-LQ with \( {D}_{50} \) =80Gy, \( \gamma \) =2.2, \( \alpha /\beta \) =3Gy, s = 1 for rectum; ab: LKB with \( {D}_{50} \) =62Gy, \( \gamma \) =6, N = 0.13, M = 0.11 for bladder; bb: Poisson-LQ with \( {D}_{50} \) =80Gy, \( \gamma \) =3, \( \alpha /\beta \) =3Gy, s = 0.18 for bladder
