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Table 7 Summary table of texture parameters ranked 1-10 with Fisher and POE+ACC methods according to test subgroup T2-weighted images and imaging timepoints E1 and E2.

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

T2-WEIGHTED IMAGES R&R R&R Wilcoxon Wilcoxon
E1-E2 analyses Repeatability % of total Reproducibility % of total Slice thickness <8 mm
p
Slice thickness >= 8 mm
p
HISTOGRAM PARAMETERS     
MinNorm 14.090 24.380 0.861 0.636
CO-OCCURENCE MATRIX PARAMETERS     
Difference variance S(1,-1) 24.802 17.121 0.249 0.266
Sum average S(2,2) 38.483 23.527 0.552 0.163
Contrast S(3,0) 22.618 45.195 0.087 0.025
Contrast S(3,3) 23.282 48.345 0.152 0.102
Contrast S(4,0) 26.599 44.458 0.221 0.013
Contrast S(4,4) 31.083 41.015 0.116 0.049
Difference variance S(4,4) 35.305 32.674 0.196 0.019
Contrast S(4,-4) 40.897 22.850 0.013 0.266
Sum average S(4,-4) 10.802 1.906 0.345 0.210
Contrast S(5,0) 30.110 41.229 0.422 0.007
Sum of squares S(5,0) 64.138 7.335 0.807 0.076
Difference variance S(5,0) 34.811 32.369 0.917 0.009
Contrast S(0,5) 41.519 29.671 0.055 0.210
Contrast S(5,5) 39.461 38.040 0.133 0.102
Sum of squares S(5,5) 80.906 0.000 0.972 0.906
RUN-LENGTH MATRIX PARAMETERS     
Short run emphasis, 90° 10.659 12.516 0.087 0.149
Fraction of image in runs, 90° 11.662 12.685 0.101 0.124
ABSOLUTE GRADIENT PARAMETERS     
Mean 18.036 44.271 0.046 0.287
Skewness 63.599 15.598 0.382 0.492
  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.