FIGURE. 1
FIGURE. 2
FIGURE. 3
The dice similarity coefficient (DSC) and 95% Hausdorff distance (HD) (mm) for different MR sequences of automatic segmentation (mean ± SD)
| Bladder | Rectum | Anal canal | Femoral head _L | Femoral head _R | ||
|---|---|---|---|---|---|---|
| DSC | T1WI- T1dixonc | 0.789±0.096 | 0.686±0.111 | 0.691±0.121 | 0.865±0.083 | 0.876±0.037 |
| T1WI- T2WI | 0.854±0.101 | 0.784±0.105 | 0.707±0.087 | 0.908±0.091 | 0.924±0.030 | |
| T2WI- T1dixonc | 0.756±0.130 | 0.860±0.912 | 0.709±0.134 | 0.891±0.032 | 0.892±0.037 | |
| 95% HD (mm) | T1WI- T1dixonc | 18.079±12.095 | 9.702±10.940 | 4.810±2.170 | 4.300±2.027 | 4.678±1.793 |
| T1WI- T2WI | 12.459±11.094 | 7.978±10.469 | 4.826±2.361 | 3.362±2.441 | 3.188±1.413 | |
| T2WI- T1dixonc | 17.711±9.049 | 7.433±3.907 | 4.478±1.744 | 3.769±1.204 | 3.616±1.095 |
The dice similarity coefficient (DSC) and 95% Hausdorff distance (HD) (mm) of OARs based on different MR sequences for R2 (mean ± SD)
| OARs | T1WI–T1dixonc | T1WI–T2WI | T2WI–T1dixonc | |
|---|---|---|---|---|
| DSC | Bladder | 0.877 ± 0.079 | 0.920 ± 0.038 | 0.884 ± 0.073 |
| Rectum | 0.842 ± 0.064 | 0.883 ± 0.049 | 0.809 ± 0.050 | |
| Anal canal | 0.705 ± 0.166 | 0.760 ± 0.077 | 0.733 ± 0.125 | |
| Femoral head _L | 0.905 ± 0.062 | 0.952 ± 0.027 | 0.905 ± 0.055 | |
| Femoral head _R | 0.904 ± 0.050 | 0.959 ± 0.026 | 0.906 ± 0.049 | |
| 95% HD (mm) | Bladder | 6.427 ± 4.360 | 4.742 ± 1.574 | 7.092 ± 5.363 |
| Rectum | 5.260 ± 2.934 | 3.408 ± 1.484 | 5.953 ± 3.153 | |
| Anal canal | 4.732 ± 2.398 | 4.076 ± 1.375 | 4.468 ± 2.144 | |
| Femoral head _L | 3.811 ± 1.550 | 2.607 ± 1.405 | 3.994 ± 1.596 | |
| Femoral head _R | 4.027 ± 1.275 | 1.181 ± 1.171 | 3.682 ± 1.654 |