Validity and diagnostic performance of fluorescence optical imaging measuring synovitis in hand osteoarthritis: baseline results from the Nor-Hand cohort

Table 2 Spearman’s correlations for synovitis sum scores between MRI, ultrasound, and FOI

Variable 1	Variable 2	All joints	DIP	PIP	MCP
MRI*	PVM*	0.23	0.09	0.32	0.17
MRI*	Phase 1*	0.01	0.00	0.01	− 0.04
MRI*	Phase 2*	0.24	0.14	0.31	− 0.01
MRI*	Phase 3*	0.19	0.09	0.24	0.07
GS	PVM	0.15	0.07	0.26	0.20
GS	Phase 1	0.12	0.15	0.04	0.13
GS	Phase 2	0.25	0.15	0.30	0.13
GS	Phase 3	0.22	0.06	0.27	0.17
MRI*	GS*	0.58	0.45	0.60	− 0.04
MRI*	PD*	0.45	0.35	0.47	− 0.02
GS	PD	0.79	0.70	0.85	0.79

*Dominant hand
MRI magnetic resonance imaging, GS gray-scale ultrasound, PD power Doppler, FOI fluorescence optical imaging, PVM FOI Prima Vista Mode, Phase 1 FOI phase 1, Phase 2 FOI phase 2, Phase 3 FOI phase 3, DIP distal interphalangeal joint, PIP proximal interphalangeal joint, MCP metacarpophalangeal joint

ISSN: 1478-6362