Table 1.

Correlation between thermal imaging and ultrasound outcomes at the bilateral knees.

TI parameter	Knee aspect
		PD score		GS score
		Spearman’s rho	P-value	Spearman’s rho	P-value
Right knee
T-min	Lateral	0.26	0.01*	0.30	0.003**
T-max	Lateral	0.42	< 0.001***	0.46	< 0.001***
T-avg	Lateral	0.30	0.004**	0.35	< 0.001***
T-min	Anterior	0.34	< 0.001***	0.33	0.001**
T-max	Anterior	0.33	< 0.001***	0.38	< 0.001***
T-avg	Anterior	0.37	< 0.001***	0.41	< 0.001***
T-min	Medial	0.21	0.04*	0.27	0.008**
T-max	Medial	0.37	< 0.001***	0.35	< 0.001***
T-avg	Medial	0.25	0.02*	0.29	0.004**
Left knee
T-min	Lateral	0.43	< 0.001***	0.49	< 0.001***
T-max	Lateral	0.34	< 0.001***	0.40	< 0.001***
T-avg	Lateral	0.40	< 0.001***	0.47	< 0.001***
T-min	Anterior	0.32	0.002**	0.39	< 0.001***
T-max	Anterior	0.39	< 0.001***	0.43	< 0.001***
T-avg	Anterior	0.43	< 0.001***	0.49	< 0.001***
T-min	Medial	0.32	0.002**	0.37	< 0.001***
T-max	Medial	0.35	< 0.001***	0.36	< 0.001***
T-avg	Medial	0.37	< 0.001***	0.43	< 0.001***

TI Thermal imaging, T-min Minimum temperature, T-max Maximum temperature, T-avg Average temperature, PD Power Doppler, GS Grey-scale. Statistical significance:

*P<0.05, **P<0.01, ***P<0.001.