{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,1]],"date-time":"2026-09-01T16:15:51Z","timestamp":1788279351692,"version":"build-2803163510"},"reference-count":61,"publisher":"The Journal of Rheumatology","issue":"Suppl 2","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J Rheumatol"],"accepted":{"date-parts":[[2026,4,27]]},"published-print":{"date-parts":[[2026,9]]},"abstract":"<jats:p>Psoriatic arthritis (PsA) is a heterogeneous inflammatory disease characterized by diverse musculoskeletal manifestations, including peripheral and axial arthritis, enthesitis, and dactylitis, often in conjunction with skin and nail psoriasis. Imaging modalities, particularly musculoskeletal ultrasound (MSUS) and magnetic resonance imaging (MRI), are crucial for accurate diagnosis, monitoring disease activity, and assessing structural damage in PsA. This review summarizes key insights from the Group for Research and Assessment of Psoriasis and Psoriatic Arthritis (GRAPPA) 2025 session \u201cImaging in psoriatic arthritis: focus on axial MRI and peripheral musculoskeletal ultrasound,\u201d highlighting advancements in both peripheral and axial imaging. Efforts to standardize imaging protocols and scoring systems continue to enhance the utility and reliability of these tools in both research and daily practice, emphasizing the importance of nuanced interpretation to avoid common pitfalls. The session also underscored the valuable input from patient research partners, whose involvement highlights a crucial commitment to patient-centered research and care in rheumatology.<\/jats:p>","DOI":"10.3899\/jrheum.2026-0434","type":"journal-article","created":{"date-parts":[[2026,6,1]],"date-time":"2026-06-01T12:20:24Z","timestamp":1780316424000},"page":"7-11","source":"Crossref","is-referenced-by-count":0,"title":["Imaging in Psoriatic Arthritis: Focus on Axial Magnetic Resonance Imaging and Peripheral Musculoskeletal Ultrasound"],"prefix":"10.3899","volume":"53","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-7247-1846","authenticated-orcid":false,"given":"Sebasti\u00e1n","family":"Herrera-Uribe","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0008-8126-939X","authenticated-orcid":false,"given":"Arnon","family":"Katz","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7317-7884","authenticated-orcid":false,"given":"Wendy","family":"Wagenaar","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2367-0640","authenticated-orcid":false,"given":"Catherine","family":"Bakewell","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0652-9808","authenticated-orcid":false,"given":"Manouk","family":"de Hooge","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"2262","published-online":{"date-parts":[[2026,6,1]]},"reference":[{"key":"2026090108201087000_53.Suppl_2.7.1","doi-asserted-by":"crossref","first-page":"1759720X241288060","DOI":"10.1177\/1759720X241288060","article-title":"Imaging in psoriatic arthritis: established methods and emerging techniques","volume":"16","author":"Jin","year":"2024","journal-title":"Ther Adv Musculoskelet Dis"},{"key":"2026090108201087000_53.Suppl_2.7.2","doi-asserted-by":"crossref","first-page":"101594","DOI":"10.1016\/j.berh.2020.101594","article-title":"Imaging in the diagnosis and management of peripheral psoriatic arthritis","volume":"34","author":"Aydin","year":"2020","journal-title":"Best Pract Res Clin Rheumatol"},{"key":"2026090108201087000_53.Suppl_2.7.3","first-page":"S66","article-title":"Magnetic resonance imaging for diagnosing, monitoring and prognostication in psoriatic arthritis","volume":"33","author":"Poggenborg","year":"2015","journal-title":"Clin Exp Rheumatol"},{"key":"2026090108201087000_53.Suppl_2.7.4","doi-asserted-by":"publisher","DOI":"10.1186\/ar1934"},{"key":"2026090108201087000_53.Suppl_2.7.5","doi-asserted-by":"crossref","first-page":"133","DOI":"10.1080\/1744666X.2016.1215245","article-title":"Psoriatic arthritis: lessons from imaging studies and implications for therapy","volume":"13","author":"Mathew","year":"2017","journal-title":"Expert Rev Clin Immunol"},{"key":"2026090108201087000_53.Suppl_2.7.6","doi-asserted-by":"publisher","DOI":"10.1136\/ard-2023-225278"},{"key":"2026090108201087000_53.Suppl_2.7.7","doi-asserted-by":"crossref","first-page":"S298","DOI":"10.5152\/eurjrheum.2024.21096","article-title":"Ultrasound in the evaluation of dactylitis and enthesitis in psoriatic arthritis","volume":"11","author":"Urruticoechea-Arana","year":"2024","journal-title":"EJR"},{"key":"2026090108201087000_53.Suppl_2.7.8","doi-asserted-by":"publisher","DOI":"10.1007\/s11926-020-00891-x"},{"key":"2026090108201087000_53.Suppl_2.7.9","doi-asserted-by":"publisher","DOI":"10.1136\/rmdopen-2019-001067"},{"key":"2026090108201087000_53.Suppl_2.7.10","doi-asserted-by":"crossref","first-page":"1627","DOI":"10.1007\/s10067-019-04445-0","article-title":"Subclinical synovitis and enthesitis in psoriasis patients and controls by ultrasonography in Saudi Arabia; 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