TABLE 2.

Concordant Features across All Pairs for the T1‐Weighted MRI Exams, with A: No Preprocessing, B: 32‐Bin Grayscale Discretization, C: 64‐Bin Grayscale Discretization, D: z‐score Normalization, E: z‐score Normalization +32‐bin Grayscale Discretization, and F: z‐score Normalization +64‐bin Grayscale Discretization

	A	B	C	D	E	F
Number of Concordant Features	15 (16.5%)	13 (14.3%)	14 (15.4%)	4 (4.4%)	7 (7.7%)	8 (8.8%)
firstorder_90Percentile	×	×	×
firstorder_InterquartileRange	×	×	×
firstorder_MeanAbsoluteDeviation	×	×	×
firstorder_Mean	×	×	×
firstorder_RobustMeanAbsoluteDeviation	×	×	×
firstorder_RootMeanSquared	×	×	×
firstorder_Skewness	×	×	×	×	×	×
glcm_JointAverage	×
glrlm_GrayLevelNonUniformity	×	×	×		×	×
glrlm_RunLengthNonUniformity	×	×	×		×	×
glszm_GrayLevelNonUniformity	×		×	×		×
glszm_SizeZoneNonUniformity				×
glszm_SmallAreaHighGrayLevelEmphasis	×
gldm_DependenceNonUniformity	×	×	×		×	×
gldm_GrayLevelNonUniformity	×	×	×	×	×	×
ngtdm_Busyness		×	×		×	×
ngtdm_Coarseness	×	×	×		×	×