{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,3]],"date-time":"2026-05-03T01:08:09Z","timestamp":1777770489312,"version":"3.51.4"},"reference-count":45,"publisher":"BMJ","issue":"2","license":[{"start":{"date-parts":[[2026,4,29]],"date-time":"2026-04-29T00:00:00Z","timestamp":1777420800000},"content-version":"unspecified","delay-in-days":28,"URL":"https:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"}],"funder":[{"name":"Warnery Prize","award":["CHF 35000"],"award-info":[{"award-number":["CHF 35000"]}]},{"name":"Swiss Government Excellence Scholarship"}],"content-domain":{"domain":["bmj.com"],"crossmark-restriction":true},"short-container-title":["RMD Open"],"accepted":{"date-parts":[[2026,3,27]]},"published-print":{"date-parts":[[2026,4]]},"abstract":"<jats:sec>\n                    <jats:title>Objectives<\/jats:title>\n                    <jats:p>Development of a new ultrasound (US) synovitis score (SONography in Arthritis and Rheumatism (SONAR)-7) with evaluation of its diagnostic performance in a cohort of patients with psoriatic arthritis (PsA) and axial spondyloarthritis (axSpA), in comparison with healthy controls (HC).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>We included 121 participants: 41 patients with PsA and 39 patients with axSpA, from six Swiss hospitals and 41 HC. All participants underwent a clinical examination of joints (68\/66 tender joint count\/swollen joint count (SJC)), followed by a detailed musculoskeletal US examination of 22 joints to assess for greyscale (GS) and power Doppler (PD) synovitis in adherence with the definitions established by the Outcome Measures in Rheumatology US working group.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>The \u2018SONAR-7\u2019 score incorporated GS and PD lesions across 14 joints, including four metacarpophalangeal joints, four distal interphalangeal joints of the hands, two metatarsophalangeal joints, knees and wrists. It demonstrated an area under the receiver operating characteristic curve of 0.831 (95% CI 0.76 to 0.90), with an excellent specificity (95.1%) and moderate sensitivity (44%), comparable to existing US scores. The inflammatory components of the SONAR-7 correlated significantly with clinical measures of inflammation and disease activity (correlation: 0.37 for SJC-28, 0.33 for Disease Activity in Psoriatic Arthritis and 0.48 for US enthesitis). New bone formation in the same joints was associated with the Health Assessment Questionnaire (p=0.035) and Bath Ankylosing Spondylitis Metrology Index (p=0.016).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>The SONAR-7 score represents a fast and effective US-based tool for the evaluation of inflammatory and structural joint involvement in patients with PsA and axSpA, with high specificity and meaningful associations with clinical and quality-of-life outcomes.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1136\/rmdopen-2026-006802","type":"journal-article","created":{"date-parts":[[2026,4,29]],"date-time":"2026-04-29T16:35:15Z","timestamp":1777480515000},"page":"e006802","update-policy":"https:\/\/doi.org\/10.1136\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":0,"title":["Development and validation of a new ultrasound score (SONAR-7) for synovitis in psoriatic arthritis and axial spondyloarthritis"],"prefix":"10.1136","volume":"12","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-1447-0543","authenticated-orcid":false,"given":"Gehad G","family":"Elsehrawy","sequence":"first","affiliation":[{"name":"Department of Rheumatology, Geneva University Hospital, University of Geneva, Geneva, Switzerland"},{"name":"Department of Physical Medicine, Rheumatology and Rehabilitation, Faculty of Medicine, Suez Canal University, Ismailia, Egypt"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Delphine S","family":"Courvoisier","sequence":"additional","affiliation":[{"name":"Department of Rheumatology, Geneva University Hospital, University of Geneva, Geneva, Switzerland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Erik","family":"Deman","sequence":"additional","affiliation":[{"name":"Department of Rheumatology, University Hospital of Basel, University of Basel, Basel, Switzerland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Diana","family":"Dan","sequence":"additional","affiliation":[{"name":"Department of Rheumatology, University Hospital of Lausanne, University of Lausanne, Lausanne, Switzerland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8918-7304","authenticated-orcid":false,"given":"Raphael","family":"Micheroli","sequence":"additional","affiliation":[{"name":"Department of Rheumatology, University Hospital of Zurich, University of Zurich, Zurich, Switzerland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hans","family":"Ziswiler","sequence":"additional","affiliation":[{"name":"OsteoRheuma, Bern, Switzerland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Pascal","family":"Zufferey","sequence":"additional","affiliation":[{"name":"Department of Rheumatology, Fribourg Hospitals, Fribourg, Switzerland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Laure","family":"Brulhart","sequence":"additional","affiliation":[{"name":"Department of Rheumatology, Neuch\u00e2tel Hospital, La Chaux-de-Fonds, Switzerland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6326-1764","authenticated-orcid":false,"given":"Michael J","family":"Nissen","sequence":"additional","affiliation":[{"name":"Department of Rheumatology, Geneva University Hospital, University of Geneva, Geneva, Switzerland"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"239","published-online":{"date-parts":[[2026,4,29]]},"reference":[{"key":"2026042909350932000_12.2.e006802.1","doi-asserted-by":"crossref","unstructured":"Dubash SR , De Marco G , Wakefield RJ , et al . 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