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. 2022 Nov 2;37(3):217–226. doi: 10.4103/ijnm.ijnm_111_21

Table S2.

Features in PET and CT images selected with high area under ROC (significance of 5%) versus features selected after filtering Pearson correlation matrix

Features with high area under ROC (significance of 5%) Features selected after filtering Pearson correlation matrix
PET
  CONVENTIONAL_SUVbwmean
  CONVENTIONAL_SUVbwQ1
  CONVENTIONAL_SUVbwQ2
  CONVENTIONAL_SUVbwQ3
  DISCRETIZED_AUC_CSH
  SHAPE_Compacity[onlyFor3DROI]
  GLCM_Homogeneity[=InverseDifference]
  GLRLM_SRE
  GLRLM_LRE
  GLRLM_LRLGE
  GLRLM_RP
  NGLDM_Contrast
  GLZLM_SZE
  GLZLM_LZE
  GLZLM_LGZE
  GLZLM_SZHGE
  GLZLM_LZLGE
  GLZLM_LZHGE
  GLZLM_ZP
CT
  CONVENTIONAL_HUmin
  DISCRETIZED_HUmin
  SHAPE_Volume (mL)
  SHAPE_Volume (vx)
  SHAPE_Compacity[onlyFor3DROI]
  GLRLM_LRHGE
  GLRLM_GLNU
  GLRLM_RLNU
  NGLDM_Coarseness
  NGLDM_Busyness
  GLZLM_LGZE
  GLZLM_HGZE
  GLZLM_SZLGE
  CT GLRLM_LGRE
  GLRLM_SRLGE
  GLRLM_SRE
PET
  CONVENTIONAL_SUVbwmin
  CONVENTIONAL_SUVbwKurtosis
  CONVENTIONAL_TLG (mL)[onlyForPETorNM]
  SHAPE_Sphericity[onlyFor3DROI])
  SHAPE_Compacity[onlyFor3DROI]
  GLCM_Correlation
  GLRLM_LRLGE
  GLRLM_RP
  NGLDM_Coarseness
  GLZLM_SZE
  GLZLM_SZLGE
  GLZLM_LZLGE
  GLZLM_LZHGE
  GLZLM_GLNU
CT
  CT CONVENTIONAL_HUmin
  CT CONVENTIONAL_HUmean
  CT CONVENTIONAL_HUpeakSphere0.5mL: discretized volume sought[onlyFor3D]
  CT SHAPE_Sphericity[onlyFor3DROI])
  CT SHAPE_Compacity[onlyFor3DROI]
  CT GLCM_Homogeneity[=InverseDifference]
  CT GLCM_Correlation
  CT GLRLM_LRHGE
  CT NGLDM_Coarseness
  CT NGLDM_Contrast
  CT NGLDM_Busyness
  CT GLZLM_SZE
  CT GLZLM_LGZE
  CT GLCM_Dissimilarity
  CT GLRLM_LRE
  CT GLRLM_LGRE

GLCM: Gray level co-occurrence matrix, GLRLM: Gray-level run-length matrix, SRE: Short-run emphasis, LRE: Long-run emphasis, LGRE: Low gray-level run emphasis, SRLGE: Short-run low gray-level emphasis, LRLGE: Long-run low gray-level emphasis, LRHGE: Long-run high gray-level emphasis, GLNU: Gray-level nonuniformity, RLNU: Run-length nonuniformity, RP: Run percentage, NGLDM: Neighborhood gray-level different matrix, GLZLM: Gray-level zone length matrix, SZE: Short-zone emphasis, LZE: Long-zone emphasis, LGZE: Low gray-level zone emphasis, HGZE: High gray-level zone emphasis, SZLGE: Short-zone low gray-level emphasis, SZHGE: Short-zone high gray-level emphasis, LZGLE: Long-zone low gray-level emphasis, LZHGE: Long-zone high gray-level emphasis, ZLNU: Zone length nonuniformity, ZP: Zone percentage, AUC: Area under the curve, ROC: Receiver operating curve, PET: Positron-emission tomography, CT: Computed tomography, CSH: Cumulative standardized uptake value (SUV)-volume histogram, SUV: Standardised Uptake Value