The Swiss musculoskeletal ultrasound recommendations and the SONAR score: do they meet current standards?

Imaging is a key technique for diagnosing arthritis and assessing activity of arthritis. For years, conventional radiography has been the gold standard for determining bone damage in rheumatoid arthritis (RA), that is, bone erosions. Although the presence of erosions may show us the relics of what has happened in the past, it delivers insufficient information about what actually is going on in the patient. Clearly, in times where the clinical rheumatologist is increasingly held responsible for the effects of drug management decisions, sophisticated imaging techniques providing up-to-date information are in the limelight. Any imaging technique should be able to guide us in our daily