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Table 5 Differences between ICRU rectum and bladder doses from orthogonal films and D2, and D5, of the rectum and bladder obtained from CT scans.

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

Variable Mean difference (Gy)
  All patients Group 1 Group 2 P (1 vs.2)
Rectum     
   ICRU-D2 -3.3 -2.9 -3.6 0.24
   ICRU-D5 -2.1 -1.8 -2.4 0.26
Bladder     
   ICRU-D2 -3.1 -2.3 -3.8 0.01
   ICRU-D5 -1.7 -1.1 -2.3 0.01
  1. *Abbreviations: Group 1 = CTV coverage > 95% isodose line prescribed to Point A, Group 2 = CTV coverage < 95% isodose line prescribed to Point A. D2 = the minimum dose value in the 2.0-cc volume receiving the highest dose, D5 = the minimum dose value in the 5.0-cc volume receiving the highest dose.