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Table 2 Linear regression data of maximum diameter obtained using several delineation methods and pathology

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

Delineation method R 2 a Slope a
CT 0.77 1.25
PET
VOI50 b 0.82 1.00
VOI70 0.73 0.79
VOIA41 b 0.82 1.05
VOIA50 0.75 0.95
VOIA70 0.81 0.69
VOISchaefer b 0.83 1.06
VOIRTL 0.77 0.97
GradWT1 b 0.43 1.12
GradWT2 0.62 0.88
SUV2.5 b 0.79 1.16
  1. aWith intercept set to 0.
  2. bWithout outliers (2 for VOI50, VOIA41, VOISchaefer, and GradWT1, 5 for SUV2.5).