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Matrix Feature GLCM Homogeneity Energy Contrast Correlation Entropy, log10 Dissimilarity GLRLM Short-run emphasis (SRE) Long-run emphasis (LRE) Low gray-level run emphasis (LGRE) High gray-level run emphasis (HGRE) Short-run low gray-level emphasis (SRLGE) Short-run high gray-level emphasis (SRHGE) Long-run low gray-level emphasis (LRLGE) Long-run high gray-level emphasis (LRHGE) GLNU Run length nonuniformity (RLNU) Run percentage (RP) Neighborhood gray-level different matrix Coarseness Contrast Busyness GLZLM SZE Long-zone emphasis (LZE) Low gray-level zone emphasis (LGZE) High gray-level zone emphasis (HGZE) Short-zone low gray-level emphasis (SZLGE) Short-zone high gray-level emphasis (SZHGE) Long-zone low gray-level emphasis (LZLGE) Long-zone high gray-level emphasis (LZHGE) GLNU Zone length nonuniformity (ZLNU) ZP Resampling method Discrete value Sphere size (mm) GLCM GLRLM NGLDM GLZLM Homogeneity Energy Contrast Correlation Entropy_log10 Dissimilarity SRE LRE LGRE HGRE SRLGE SRHGE LRLGE LRHGE GLNU RLNU RP Coarseness Contrast Busyness SZE LZE LGZE HGZE SZLGE SZHGE LZLGE LZHGE GLNU ZLNU ZP FBS 64 22 — — — + — — — — — — — — — — — — — — — — — — — — — — — — — — — 28 — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — 37 + — — — — — + + — — — — — — — — + — — — — — — — — — — — — — — 128 22 — — — + — — — — — — — — — — — — — — — — — — — — — + — — — — — 28 — — — — — — — + — — — — — — — — + — — — — — — — — — — — — — — 37 + — — — — — + + — — — — — — — — + — — — — + — + + — + + — — — FBN 64 22 — — — + — — — — — — — — — — — — — — — — — — — — — — — — — — — 28 — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — 37 — — — + — — — — — + — + — + — — — — — — — + — — — — — + — + — 128 22 — — — + — — — — — — — — — — — — — — — — — — — — — — — — — — — 28 — — — — — — — — — — — — — — — — — — — — — — — — — — — + — — — 37 — — — + — — — — — + — + — + — — — — — — — — — — — — — + — +* — ↵* Confirmed interobserver difference.
+ = significant difference; − = nonsignificant difference. Other abbreviations are listed in Table 1 or defined in the article.
Resampling method Discrete value GLCM GLRLM GLZLM Homogeneity Energy Contrast Entropy Dissimilarity SRE LRE HGRE LRHGE GLNU RP SZE ZP FBS 64 — 〇 〇 〇 〇 — — 〇 〇 — — — — 128 — 〇 — 〇 〇 — — 〇 — — — — — FBN 64 〇 — — 〇 〇 〇 〇 — — 〇 〇 〇 〇 128 〇 — — 〇 〇 〇 〇 — — 〇 〇 〇 〇 Abbreviations are listed in Table 1 or defined in the article. 〇 = fulfilling the criterion; — = not fulfilling the criterion.
Parameter SS CBM P Uptake time (min) 68.7 ± 6.5 63.1 ± 7.8 0.018 SUVmean 5.4 ± 3.8 5.4 ± 3.8 0.933 SUVmax 8.5 ± 5.6 8.6 ± 5.7 0.628 VOI (mL) 16.0 ± 22.8 15.9 ± 22.7 0.915 Observer Resampling method Discrete value GLCM GLRLM GLZLM Homogeneity Energy Contrast Entropy Dissimilarity SRE LRE HGRE LRHGE GLNU RP SZE ZP 1 FBS 64 — 17.36 ± 27.71 16.40 ± 14.37 3.18 ± 3.18 8.78 ± 7.32 — — 12.84 ± 8.19 12.31 ± 9.66 — — — — 128 — 15.56 ± 29.52 — 2.49 ± 2.69 8.97 ± 7.33 — — 12.99 ± 8.06 — — — — — FBN 64 7.10 ± 4.78 — — 2.51 ± 2.03 7.08 ± 5.02 0.28 ± 0.18 1.07 ± 0.75 — — 8.55 ± 7.52* 0.36 ± 0.24 3.29 ± 1.98 4.61 ± 2.88 128 8.92 ± 6.17 — — 2.52 ± 2.03 7.01 ± 5.02 0.22 ± 0.15 0.89 ± 0.61 — — 8.53 ± 6.74* 0.30 ± 0.20 2.77 ± 1.88 3.85 ± 2.62 2 FBS 64 — 17.73 ± 27.70 16.80 ± 13.63 3.16 ± 3.21 8.80 ± 7.21 — — 12.74 ± 8.91 12.47 ± 9.89 — — — — 128 — 16.11 ± 29.58 — 2.54 ± 2.73 8.85 ± 7.32 — — 12.87 ± 8.81 — — — — — FBN 64 7.51 ± 5.72 — — 2.88 ± 2.50 7.44 ± 5.19 0.27 ± 0.21 1.11 ± 0.80 — — 11.41 ± 10.76* 0.37 ± 0.27 3.30 ± 2.63 4.65 ± 3.46 128 9.44 ± 6.81 — — 2.89 ± 2.58 7.37 ± 5.20 0.22 ± 0.16 0.89 ± 0.63 — — 11.02 ± 8.83* 0.30 ± 0.21 2.82 ± 2.05 3.82 ± 2.62 ↵* Confirmed interobserver difference
Abbreviations are listed in Table 1 or defined in the article.
- TABLE 6
Correlation Between Texture Features of SS and CBM Images Derived from 2 Observers
Observer Resampling method Discrete value GLZLM Homogeneity Energy Contrast Entropy Dissimilarity SRE LRE HGRE LRHGE GLNU RP SZE ZP 1 FBS 64 — 0.96 (<0.001) 0.99 (<0.001) 0.97 (<0.001) 0.99 (<0.001) — — 0.99 (<0.001) 0.95 (<0.001) — — — — 128 — 0.87 (<0.001) — 0.96 (<0.001) 0.99 (<0.001) — — 0.99 (<0.001) — — — — — FBN 64 0.88 (<0.001) — — 0.98 (<0.001) 0.90 (<0.001) 0.66 (<0.001) 0.63 (<0.001) — — 1.00 (<0.001) 0.66 (<0.001) 0.61 (<0.001) 0.70 (<0.001) 128 0.83 (<0.001) — — 0.98 (<0.001) 0.90 (<0.001) 0.27 (0.170) 0.17 (0.391) — — 1.00 (<0.001) 0.31 (0.115) 0.23 (0.258) 0.29 (0.141) 2 FBS 64 — 0.96 (<0.001) 0.99 (<0.001) 0.97 (<0.001) 0.99 (<0.001) — — 0.99 (<0.001) 0.95 (<0.001) — — — — 128 — 0.87 (<0.001) — 0.96 (<0.001) 0.99 (<0.001) — — 0.99 (<0.001) — — — — — FBN 64 0.84 (<0.001) — — 0.97 (<0.001) 0.88 (<0.001) 0.62 (<0.001) 0.62 (<0.001) — — 1.00 (<0.001) 0.64 (<0.001) 0.53 (0.005) 0.65 (<0.001) 128 0.80 (<0.001) — — 0.97 (<0.001) 0.88 (<0.001) 0.23 (0.244) 0.08 (0.696) — — 1.00 (<0.001) 0.25 (0.200) 0.19 (0.340) 0.28 (0.161) Abbreviations are listed in Table 1 or defined in the article. Data are expressed as r value followed by P value in parentheses.
Resampling method Discrete value GLCM Homogeneity Entropy Dissimilarity FBS 64 — 〇 〇 128 — 〇 〇 FBN 64 〇 〇 〇 128 〇 〇 〇 〇 = fulfilling the criterion; — = not fulfilling the criterion.
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