Table 4.

Specificities: comparison of FOI parameters and parameters of clinical examination and US parameters, and comparison of US parameters and clinical examination parameters

Reference	FOI				US
	Composite image	Phase 1	Phase 2	Phase 3	Joint effusion	Synovitis	Hyperperfusion power Doppler
Clinical active joints	0.865	0.902	0.791	0.958	0.897	0.906	0.969
Clinical swollen joints	0.856	0.896	0.777	0.955	0.887	0.899	0.967
Clinical tender joints	0.848	0.884	0.767	0.947	0.862	0.888	0.962
LOM	0.859	0.903	0.785	0.957	0.874	0.899	0.974
US joint effusion	0.856	0.909	0.784	0.959
US synovitis	0.841	0.904	0.762	0.945
Hyperperfusion by power Doppler	0.818	0.888	0.730	0.935

FOI fluorescence optical imaging, LOM limitation of motion, US ultrasonography