TABLE 1

Texture Type, Associated Features, and Scale

Texture typeFeatureScale
Based on intensity histogramMinimum SUVGlobal
SUVmax
SUVmean
Variance
SD
Skewness
Kurtosis
Mean/SD
Based on intensity size–zone matrixSmall-area emphasisRegional
Large-area emphasis
Intensity variability
Size–zone variability
Zone percentage
Low-intensity emphasis
High-intensity emphasis
Low-intensity small-area emphasis
High-intensity small-area emphasis
Low-intensity large-area emphasis
High-intensity large-area emphasis
Based on cooccurrence matricesSecond angular momentLocal
Contrast (inertia)
Entropy
Correlation
Homogeneity
Dissimilarity