SONAR - Ultrasound Scoring in Rheumatoid Arthritis, Spondyloarthritis and Psoriasisarthritis

SONAR (Swiss Sonography Group in Arthritis and Rheuma-tism) is a musculoskeletal ultrasound expert group founded in 2008. The group has developed a semi-quantitative score for Rheumatoid Arthritis using modified OMERACTcriteria for synovitis, tenosynovitis and erosions. The score in- cludes B mode and Powerdoppler mode in finger joints, wrists, elbows and knees, an erosion and tenosynovitis score and ad- ditional cartilage measurement in selected joints.2015 we developed and introduced a semi-quantitative score for hip involvement in Spondyloarthritis and started teaching the score to rheumatologists nationwide (Sonar-Hip or CoxSo- nar Score).Since 2008 we promote musculoskeletal ultrasound (msus) in the management of RA patients to increase therole of msus in RA and to improve patient outcomes. The So- nar-group offers msus courses to improve practical skills.The scientific commitee of the Sonar-group works with and supports the SCQM (www.scqm.ch)In 2018, the SONAR group has decided to focus more on the use of ultrasound in psoriatic arthritis and spondylarthitis. We have started a project concerning the implementation of a newly defined ultrasound enthesitis score in the registry.A preliminary score based on the OMERACT definition of ultra- sound elementary lesions observed in inflammatory enthesitis has been developped. The implementation process into SCQM has been finalyzed in 2019 followed by a validation study and teaching courses.