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EJNMMI Research

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).
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