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Table 1 Mean, median, minimum and maximum values of maximum tumour diameter as obtained with different methods

From: Assessment of tumour size in PET/CT lung cancer studies: PET- and CT-based methods compared to pathology

Method Maximum diameter (mm)
Mean Median Min Max p-value a
Pathology 40.0 35.0 15.0 70.0 -
CT 48.1 38.8 17.3 137.0 0.002
PET
VOI50 39.4b 35.6 15.5 333.6 0.984
VOI70 30.9 24.1 11.3 71.4 <0.001
VOIA41 41.3b 37.0 15.5 330.6 0.623
VOIA50 37.2 30.3 12.5 92.0 0.104
VOIA70 26.6 22.5 10.6 62.3 <0.001
VOISchaefer 41.7b 38.3 15.5 333.6 0.568
VOIRTL 37.9 33.8 10.6 92.8 0.113
GradWT1 50.0b 48.8 32.5 83.2 0.003
GradWT2 36.2 32.3 19.5 79.0 0.156
SUV2.5 44.3b 54.8 12.5 643.4 0.009
  1. aSignificance of the difference between tumour delineation method and pathology.
  2. bWithout outliers (2 for VOI50, VOIA41, VOISchaefer and GradWT1, 5 for SUV2.5).