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European Radiology Experimental

Table 3 Median OCCC values calculated for each image type and feature category

From: Reproducibility of radiomic features in CT images of NSCLC patients: an integrative analysis on the impact of acquisition and reconstruction parameters

Image type

Image subtype

Feature category

Shape

First order

ngtdm

glcm

glszm

gldm

glrlm

Original

All

1.00 (1.00)

1.00 (1.00)

1.00 (1.00)

0.99 (1.00)

0.96 (0.98)

0.93 (0.97)

0.88 (0.95)

Wavelet

All

–

0.97 (0.99)

0.94 (0.97)

0.95 (0.98)

0.87 (0.94)

0.92 (0.95)

0.88 (0.95)

LH

–

0.93 (0.98)

0.94 (0.97)

0.93 (0.98)

0.80 (0.93)

0.89 (0.94)

0.85 (0.94)

HL

–

0.96 (0.98)

0.94 (0.98)

0.96 (0.99)

0.88 (0.94)

0.90 (0.95)

0.88 (0.95)

HH

–

0.88 (0.96)

0.84 (0.92)

0.89 (0.95)

0.81 (0.92)

0.88 (0.95)

0.87 (0.94)

LL

–

1.00 (1.00)

1.00 (1.00)

0.99 (1.00)

0.97 (0.99)

0.96 (0.99)

0.94 (0.97)

LoG

All

–

1.00 (1.00)

1.00 (1.00)

1.00 (1.00)

0.99 (1.00)

0.99 (1.00)

0.99 (1.00)

0.5 mm

–

0.97 (0.99)

0.96 (0.98)

0.96 (0.99)

0.87 (0.95)

0.86 (0.93)

0.85 (0.93)

1.0 mm

–

1.00 (1.00)

0.98 (0.99)

0.99 (1.00)

0.98 (0.99)

0.98 (0.99)

0.97 (0.98)

1.5 mm

–

1.00 (1.00)

0.99 (1.00)

1.00 (1.00)

0.99 (1.00)

1.00 (1.00)

0.99 (1.00)

2.5 mm

–

1.00 (1.00)

1.00 (1.00)

1.00 (1.00)

1.00 (1.00)

1.00 (1.00)

1.00 (1.00)

5.0 mm

–

1.00 (1.00)

1.00 (1.00)

1.00 (1.00)

1.00 (1.00)

1.00 (1.00)

1.00 (1.00)

  1. In parentheses, the results obtained when restricting the analysis to the settings most used in clinics (IR40, IR50, IR60 and IR80). IR iterative reconstruction, glcm grey level co-occurrence matrix, gldm grey level dependence matrix, glrlm grey level run length matrix, glszm grey level size zone matrix, ngtdm neighbouring grey tone difference matrix, LoG Laplacian of Gaussian, OCCC overall concordance correlation coefficient
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