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Table 8 Summary table of texture parameters ranked 1-10 with Fisher and POE+ACC methods according to test subgroup T2-weighted images and imaging timepoints E2 and E3.

From: Non-Hodgkin lymphoma response evaluation with MRI texture classification

T2-WEIGHTED IMAGES

R&R

R&R

Wilcoxon

Wilcoxon

E2-E3 analyses

Repeatability % of total

Reproducibility % of total

Slice thickness <8 mm

p

Slice thickness >= 8 mm

p

HISTOGRAM PARAMETERS

    

MinNorm

14.090

24.380

0.002

0.124

Variance

1.655

16.743

0.028

0.149

CO-OCCURENCE MATRIX PARAMETERS

    

Contrast S(2,0)

19.563

41.264

0.055

0.001

Contrast S(2,2)

23.139

43.325

0.033

<0,001

Contrast S(3,0)

22.618

45.195

0.023

0.002

Correlation S(3,0)

21.555

40.965

0.009

0.001

Contrast S(0,3)

30.424

34.725

0.116

<0,001

Contrast S(3,3)

23.282

48.345

0.023

0.004

Correlation S(3,3)

22.095

44.779

0.016

0.010

Contrast S(4,0)

26.599

44.458

0.006

0.011

Correlation S(4,0)

23.479

41.166

0.003

0.009

Sum of squares S(4,0)

71.978

3.535

0.807

0.868

Correlation S(4,4)

23.823

42.301

0.016

0.055

Difference entropy S(4,-4)

10.347

7.011

0.039

0.210

Sum average S(0,5)

35.828

0.000

0.972

0.011

Angular second moment S(5,-5)

8.994

12.106

0.064

0.015

Inverse difference moment S(5,-5)

46.459

0.000

0.917

0.795

RUN-LENGTH MATRIX PARAMETERS

    

Grey level nonuniformity, 135°

6.265

33.780

0.003

0.004

ABSOLUTE GRADIENT PARAMETERS

    

Mean

18.036

44.271

0.039

<0,001

Skewness

63.599

15.598

0.221

0.044

  1. Texture parameters are given in rows. In the columns R&R repeatability and reproducibility of total, and Wilcoxon test for fat saturation series grouped with image slice thickness less than 8 mm, and 8 mm or thicker.