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Table 3 Comparison of doses to organs at risk between RapidArc (RA) and conventional radiation therapy (3D-CRT) plans

From: Bilateral kidney preservation by volumetric-modulated arc therapy (RapidArc) compared to conventional radiation therapy (3D-CRT) in pancreatic and bile duct malignancies

  3D-CRT    RapidArc    
  mean SD Range mean SD Range p-value
Bowell        
Mean dose (Gy) 20.8 6.3 10.7-36.4 16.7 6.2 6.5-35.8 0.0001
V30 (cc) 180.6 116.6 12.8-486.2 135.4 91.3 0.0-308.6 0.023
V40 (cc) 79.0 72.5 0.5-201.2 39 42.4 0.0-148.7 < 0.0001
Liver        
Mean dose (Gy) 12.5 6.3 2.8-25.0 10.5 5.4 2.3-23.1 < 0.0001
V30 (%) 11.7 10.8 0.0-35.1 8.2 8.5 0.0-28.7 0.0019
Spinal cord        
Dmax (Gy) 25.6 5.4 10.0-28.8 29.6 8.7 9.3-37.2 0.0121