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Table 1 Comparison indices for the GTV

From: Delineation in thoracic oncology: a prospective study of the effect of training on contour variability and dosimetric consequences

    Comparison with the expert Comparison before and after the course
     Range Mean Difference P*
     Min Max   
GTV (cm 3 ) Before 103.39 p = 0.02 59.9 215.2 3.90 0.53
  After 99.48 p = 0.09 39.71 202.29   
Volume Ratio Before 1.16 p = 0.02 0.67 2.41 0.04 0.53
  After 1.11 p = 0.09 0.44 2.27   
Common Delineated Volume Before 78.41 p < 0.001 58.85 91.78 2.06 0.27
  After 76.35 p < 0.001 40.24 92.06   
Additional Delineated Volume Before 28.77 p < 0.001 7.05 61.99 0.94 0.70
  After 27.82 p < 0.001 9.14 59.56   
Overlap Before 0.58 p < 0.001 0.36 0.71 0.006 0.70
  After 0.57 p < 0.001 0.38 0.71   
Kappa Before 0.73 p < 0.001 0.54 0.83 0.006 0.66
  After 0.72 p < 0.001 0.56 0.83   
  1. * (t test and paired t test).