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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.

From: Comparison of conventional and CT-based planning for intracavitary brachytherapy for cervical cancer: target volume coverage and organs at risk doses

  Group 1
Gy (%)
Group 2
Gy (%)
P
ICRU    
   Rectum 6.2 (89.0) 5.9 (84.7) 0.34
   Bladder 5.2 (74.2) 4.9 (69.9) 0.51
D2    
   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    
   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
  1. *Abbreviations: Group 1 = CTV coverage > 95% isodose line prescribed to Point A, Group 2 = CTV coverage < 95% isodose line prescribed to Point A.