Table 4.

Magnitude of variance components for QUS measurements computed for the images recorded in transverse view

QUS measurements	Relative variance proportions for images recorded in transverse view (%)
	S	E	V	I	SE	SV	SI	EV	EI	VI	SEV	SEI	SVI	EVI	SEVI
Geometric
Area (CSA)
Sympt	92.8	0.0	0.0	0.0	3.0	0.1	0.2	0.0	0.0	0.1	0.9	0.0	0.4	0.0	2.4
Asympt	86.8	0.0	0.0	0.0	3.9	0.0	0.1	0.0	0.0	0.0	1.6	1.3	0.0	0.1	6.3
Thickness
Sympt	92.6	0.0	0.0	0.0	3.3	0.2	0.1	0.0	0.0	0.0	1.9	0.4	0.0	0.1	1.5
Asympt	74.5	0.0	0.0	0.0	8.7	0.2	0.0	0.0	0.0	0.0	2.1	3.9	0.0	0.0	10.5
Width
Sympt	80.4	0.0	0.0	0.0	2.0	0.0	0.2	0.0	0.0	0.4	2.1	0.0	0.0	0.0	15.0
Asympt	71.0	2.3	0.1	0.0	7.3	0.0	0.0	0.0	0.1	0.0	6.8	1.6	1.6	0.1	9.2
Grayscale histogram
Echogenicity
Sympt	81.3	4.4	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.1	6.1	1.5	1.5	0.4	4.6
Asympt	73.2	5.0	0.0	0.0	4.0	0.0	0.0	0.0	0.0	0.0	2.3	0.0	1.6	0.0	13.9
Variance
Sympt	31.2	13.7	0.0	0.0	9.4	0.0	0.0	0.0	0.1	0.8	26.3	5.1	4.5	0.2	8.6
Asympt	49.9	10.1	0.0	0.0	6.7	1.4	0.0	0.0	0.0	0.0	10.7	2.8	2.0	0.0	16.5
Skewness
Sympt	42.9	7.5	0.0	0.0	1.0	7.2	0.0	0.0	0.0	0.0	2.2	0.0	0.0	0.0	39.2
Asympt	58.9	0.0	0.0	0.0	0.8	1.0	0.1	0.0	0.2	0.0	9.0	7.0	0.0	0.3	22.7
Kurtosis
Sympt	37.8	0.3	0.5	0.0	0.0	6.7	0.0	0.0	0.3	0.0	13.5	6.9	0.0	0.0	34.1
Asympt	44.6	0.7	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	11.8	16.3	4.7	0.8	21.1
Entropy
Sympt	25.8	4.3	0.0	0.0	0.0	0.0	0.0	0.0	0.7	2.1	40.0	5.9	10.8	0.0	10.5
Asympt	48.8	3.6	0.0	0.0	12.3	4.2	3.6	0.0	0.2	0.2	5.7	1.8	0.0	0.0	19.5
Co-occurrence matrix
Contrast
Sympt	73.8	6.8	0.0	0.0	1.3	0.0	1.4	0.0	0.0	0.0	8.3	0.1	0.0	0.4	7.8
Asympt	59.6	2.2	0.0	0.6	4.0	3.0	0.0	0.0	0.0	0.6	5.2	3.3	2.5	0.0	19.0
Energy
Sympt	58.2	5.5	0.0	0.0	0.0	0.0	0.0	0.0	0.0	1.2	21.8	3.0	2.4	0.6	7.3
Asympt	68.9	4.9	0.0	0.0	4.9	2.5	0.8	0.0	0.0	0.0	3.3	0.0	0.0	0.0	14.8
Homogeneity
Sympt	80.8	6.1	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	4.0	0.0	0.0	1.0	8.1
Asympt	67.2	4.9	0.0	0.0	4.9	0.0	0.0	0.0	0.0	0.0	1.6	1.6	1.6	0.0	18.0