Positive rate and prognostic significance of the superb microvascular imaging signal in joints of rheumatoid arthritis patients in remission with normal C-reactive protein levels and erythrocyte sedimentation rates

This study aimed to evaluate the positive rate and prognostic significance of superb microvascular imaging (SMI) in rheumatoid arthritis (RA) patients in remission with normal C-reactive protein (CRP) levels and erythrocyte sedimentation rates (ESR). The study enrolled 112 RA patients, and ultrasound (US) assessment was performed on 28 joints of each patient. The SMI signal-positive rates for each joint were: metacarpophalangeal (MCP) joints:...