{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,11,1]],"date-time":"2026-11-01T13:30:35Z","timestamp":1793539835574,"version":"4.5.0"},"reference-count":0,"publisher":"The Journal of Rheumatology","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J Rheumatol"],"abstract":"\n Objective<\/jats:title>\n Ultrasonography (US) is essential in rheumatology, but conventional systems are costly and not easily portable. Handheld US offers affordable, portable options, yet their diagnostic validity in psoriatic arthritis (PsA) is unclear. This study assessed the concurrent validity of handheld US devices in PsA by evaluating agreement with a gold-standard scanner in detecting elementary lesions.<\/jats:p>\n <\/jats:sec>\n \n Methods<\/jats:title>\n Patients with PsA meeting Classification Criteria for Psoriatic Arthritis (CASPAR) and presenting \u2265 1 tender and swollen joint underwent same-day US with handheld (Clarius L20\/L15) and gold-standard (GE Logiq E9\/E10) systems using a standardized protocol. A blinded assessor scored anonymized images for synovitis, Doppler signals, erosions, and tendon\/tenosynovitis based on Outcome Measures in Rheumatology (OMERACT) definitions. Interdevice agreement was analyzed using Cohen \u03ba (lesion detection), weighted \u03ba (lesion scoring), and intraclass correlation coefficient (ICC) per patient.<\/jats:p>\n <\/jats:sec>\n \n Results<\/jats:title>\n Thirty patients were included. Between devices, agreement for detecting synovitis was moderate (\u03ba 0.46-0.49). For Doppler activity, moderate agreement was found with Clarius L15 (\u03ba 0.42) and fair agreement with Clarius L20 (\u03ba 0.37). Erosions showed moderate-to-substantial agreement (L15: \u03ba 0.57, L20: \u03ba 0.62), whereas tendon inflammation had no-to-fair agreement (L15: \u03ba 0.16, L20: \u03ba \u22120.05). When compared with the gold-standard device, per-patient agreement showed poor (Global OMERACT\u2013European Alliance of Associations for Rheumatology [EULAR] Synovitis Score [GLOESS]) and moderate agreement (Doppler) for L15, and good (GLOESS) and moderate (Doppler) agreement for L20.<\/jats:p>\n <\/jats:sec>\n \n Conclusion<\/jats:title>\n Handheld US devices demonstrated moderate agreement with high-end scanners in identifying and grading synovitis and erosions, suggesting promising potential for clinical application. However, sensitivity for Doppler activity and tendon lesions remains lower, emphasizing the need for continued optimization and validation.<\/jats:p>\n <\/jats:sec>","DOI":"10.3899\/jrheum.2026-0288","type":"journal-article","created":{"date-parts":[[2026,9,15]],"date-time":"2026-09-15T12:20:25Z","timestamp":1789474825000},"page":"jrheum.2026-0288","source":"Crossref","is-referenced-by-count":0,"title":["Validation of Handheld Ultrasound Devices for Point-of-Care Use in Rheumatology: Focus on Synovitis, Doppler Activity, Erosions, and Tendon Lesions"],"prefix":"10.3899","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-4550-2712","authenticated-orcid":false,"given":"Seyyid Bilal","family":"Acikgoz","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2697-3217","authenticated-orcid":false,"given":"Ummugulsum","family":"Gazel","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Suharsh","family":"Shah","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5669-2120","authenticated-orcid":false,"given":"Rohan Apurva","family":"Machhar","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0004-0985-0033","authenticated-orcid":false,"given":"Patrick","family":"Leclerc","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0000-3706-1139","authenticated-orcid":false,"given":"Marie","family":"Maguin","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1335-3131","authenticated-orcid":false,"given":"Gurjit S.","family":"Kaeley","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1473-1715","authenticated-orcid":false,"given":"Lihi","family":"Eder","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8792-4449","authenticated-orcid":false,"given":"Sibel Zehra","family":"Aydin","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"2262","published-online":{"date-parts":[[2026,9,15]]},"container-title":["The Journal of Rheumatology"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/syndication.highwire.org\/content\/doi\/10.3899\/jrheum.2026-0288","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,11,1]],"date-time":"2026-11-01T13:25:14Z","timestamp":1793539514000},"score":1,"resource":{"primary":{"URL":"http:\/\/www.jrheum.org\/lookup\/doi\/10.3899\/jrheum.2026-0288"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026,9,15]]},"references-count":0,"alternative-id":["10.3899\/jrheum.2026-0288"],"URL":"https:\/\/doi.org\/10.3899\/jrheum.2026-0288","relation":{},"ISSN":["0315-162X","1499-2752","0315-162X"],"issn-type":[{"value":"0315-162X","type":"print"},{"value":"1499-2752","type":"electronic"},{"value":"0315-162X","type":"print"}],"subject":[],"published":{"date-parts":[[2026,9,15]]}}}