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Table 3 The volumes and dosage of GTV and PTV and short-term response rate of both arms

From: Feasibility of omitting clinical target volume for limited-disease small cell lung cancer treated with chemotherapy and intensity-modulated radiotherapy

Characteristic Arm without CTV Arm with CTV p-value
Volumes (cm3)    
  GTV 38.3 ± 5.0 37.3 ± 3.8 0.329
  PTV 199.2 ± 19.1 327.4 ± 26.5 0.000
Dosage(Gy)    
  GTV 67.1 ± 2.0 66.7 ± 2.5 0.386
  PTV 61.2 ± 2.0 60.8 ± 2.2 0.328
Short-term response    0.973
  CR 18 12  
  PR 29 18  
  SD 7 5  
  PD 0 0