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Table 4 Summary table of texture parameters ranked 1-10 with Fisher and POE+ACC methods according to test subgroup T1-weighted images and imaging timepoints E1 and E2.

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

T1-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     
Percentile, 1% 15.349 0.069 0.286 0.672
CO-OCCURENCE MATRIX PARAMETERS     
Difference entropy S(1,0) 6.874 25.411 0.074 0.018
Difference entropy S(0,1) 7.725 26.783 0.074 0.028
Difference entropy S(1,1) 6.970 24.413 0.139 0.018
Difference entropy S(2,0) 8.409 28.186 0.114 0.018
Sum average S(0,2) 52.143 4.597 0.285 0.499
Difference entropy S(2,2) 11.265 22.824 0.093 0.018
Difference entropy S(3,0) 15.434 11.836 0.241 0.018
Angular second moment S(5,-5) 18.976 7.234 0.093 0.612
Sum of squares S(5,-5) 58.267 1.780 0.721 0.310
Sum average S(5,-5) 15.420 16.235 0.445 1.000
RUN-LENGTH MATRIX PARAMETERS     
Grey level nonuniformity, 0° 6.015 43.441 0.051 0.128
Grey level nonuniformity, 90° 8.822 35.055 0.028 0.091
Grey level nonuniformity, 45° 4.635 13.324 0.028 0.176
Grey level nonuniformity, 135° 4.734 39.630 0.037 0.249
ABSOLUTE GRADIENT PARAMETERS     
Variance 28.133 22.699 0.445 0.018
AUTOREGRESSIVE MODEL PARAMETERS     
Teta 2 65.193 2.741 0.575 0.237
Teta 4 66.319 2.285 0.575 0.398
  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.