Quantitative MRI texture analysis of the lateral pterygoid muscle in unilateral temporomandibular joint disorders

Head & Face Medicine

Table 2 Statistical comparison of texture parameters among uADD subgroups

Parameter	(I) Group	(J) Group	Mean Difference (I-J)	SE	P
ASM	H-TMJ	ADDwoR	-9.90E-05	2.74E-05	< 0.001*
	ADDwR	ADDwoR	-7.04E-05	3.59E-05	0.051
	HG	H-TMJ	-1.65E-05	2.92E-05	0.571
		ADDwoR	-1.16E-04	3.18E-05	< 0.001*
		ADDwR	-4.51E-05	3.73E-05	0.227
Contrast	H-TMJ	ADDwoR	10.97*	2.56	< 0.001*
	ADDwoR	ADDwR	-5.07	3.36	0.132
	HG	H-TMJ	-3.32	2.73	0.224
		ADDwoR	7.65*	2.98	0.01*
		ADDwR	2.58	3.49	0.461
IDM	H-TMJ	ADDwoR	-0.0086*	0.0029	0.003*
	ADDwoR	ADDwR	0.0042	0.0039	0.272
	HG	H-TMJ	-0.0020	0.0031	0.521
		ADDwoR	-0.011*	0.003	0.002*
		ADDwR	-0.0065	0.0039	0.101
Entropy	H-TMJ	ADDwoR	0.094*	0.024	< 0.001*
	ADDwoR	ADDwR	− 0.064*	0.032	0.046*
	HG	H-TMJ	-0.0016	0.026	0.95
		ADDwoR	0.092*	0.028	0.001*
		ADDwR	0.028	0.033	0.392

HG = healthy group; ADDwR = anterior disc displacement with reduction; ADDwoR = anterior disc displacement without reduction; H-TMJ = healthy joint of unilateral anterior disc displacement; ASM = angular second moment; IDM = inverse difference moment

ISSN: 1746-160X