Table 4 Mean values of organs at risk using the ICRU reference point doses with the conventional planning method and the D2 and D5 values using the 3D CT planning method.
| Â | Group 1 Gy (%) | Group 2 Gy (%) | P |
|---|---|---|---|
ICRU | Â | Â | Â |
   Rectum | 6.2 (89.0) | 5.9 (84.7) | 0.34 |
   Bladder | 5.2 (74.2) | 4.9 (69.9) | 0.51 |
D2 | Â | Â | Â |
   Rectum | 8.1 (116.0) | 8.5 (120.8) | 0.46 |
   Bladder | 8.6 (122.3) | 9.7 (138.8) | 0.03 |
   Sigmoid | 5.9 (84.4) | 7.1 (100.5) | 0.009 |
   Bowel | 6.3 (90.1) | 7.2 (103.5) | 0.07 |
D5 | Â | Â | Â |
   Rectum | 7.0 (100.0) | 7.2 (103.5) | 0.43 |
   Bladder | 7.3 (104.0) | 8.2 (117.4) | 0.03 |
   Sigmoid | 4.6 (65.4) | 5.5 (78.2) | 0.02 |
   Bowel | 5.3 (75.6) | 5.8 (83.9) | 0.2 |