TABLE 3. Statistical Analysis Between the N, A, and S Texture Features Extracted From the IMC and Plaque ROI’s at Systole (Sys) and Diastole (Dia). The Wilcoxon Rank Sum Test Was Used (N vs A, N vs S, A vs S) and Shown With (s) Significantly and (NS) Non-Significantly Different Features at p<0.05. p-Values are Shown in Parentheses.

Texture Feature	N vs A	N vs S	A vs S
	Sys, Dia	Sys, Dia	Sys, Dia
Statistical Features (SF)
GSM	S(0.004), S(0.002)	S (0.01), S(0.01)	S(0.001), S(0.001)
STD	NS(0.06), NS(0.07)	NS(0.09), NS (0.06)	NS(0.71), NS(0.6)
Spatial Gray Level Dependence Matrix (SGLDM)
Contrast	S(0.002), S(0.001)	S(0.002), S(0.001)	S(0.04), S(0.01)
Correlation	S(0.001), S(0.004)	S(0.002), S(0.002)	S(0.002), S(0.001)
IDM	S(0.003), S(0.002)	S(0.001), S(0.001)	S(0.004), S(0.001)
Sum Variance	S(0.004), S(0.001)	S(0.002), S(0.004)	S(0.002), S(0.003)
Gray Level Difference Statistics (GLDS)
Entropy	S(0.02), S(0.04)	S(0.001), S(0.001)	S(0.002), S(0.002)
Contrast	S(0.01), S(0.01)	S(0.001), S(0.001)	S(0.0001), S(0.0001)
Neighborhood Gray Tone Difference Matrix (NGTDM)
Coarseness	S(0.002), S(0.002)	S(0.002), S(0.002)	S(0.001), S(0.001)
Contrast	S(0.003), S(0.001)	S(0.002), S(0.003)	S(0.001), S(0.001)
Statistical Feature Matrix (SFM)
Periodicity	S(0.001), S(0.001)	S(0.001), S(0.001)	S(0.001), S(0.001)
Roughness	S(0.001), S(0.001)	S(0.001), S(0.001)	S(0.001), S(0.001)
Laws Texture Energy Measures (LTEM)
LL	S(0.002), S(0.002)	S(0.001), S(0.001)	S(0.001), S(0.001)
SS	S(0.001), S(0.001)	S(0.001), S(0.001)	S(0.003), S(0.004)
Fractal Dimension Analysis (FDTA)
H1	S(0.002), S(0.002)	S(0.004), S(0.003)	S(0.002), S(0.004)

N, A, S: Normal, asymptomatic and symptomatic group of subjects, GSM: Gray-scale median, STD: Standard Deviation.