{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T17:53:49Z","timestamp":1760205229431,"version":"build-2065373602"},"reference-count":21,"publisher":"MDPI AG","issue":"7","license":[{"start":{"date-parts":[[2023,4,6]],"date-time":"2023-04-06T00:00:00Z","timestamp":1680739200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["JCM"],"abstract":"<jats:p>This study aims to determine the relative weights (point value) of items of the juvenile idiopathic arthritis magnetic resonance imaging-sacroiliac joint scoring system (JAMRIS-SIJ). An adaptive multicriteria decision analysis was performed using the 1000Minds web application to determine the relative weights of the items in the JAMRIS-SIJ inflammation and damage domains. Experts in imaging and rheumatology independently completed a conjoint analysis survey (CAS) to determine the point value of the measurement items of the JAMRIS-SIJ. Each CAS survey question asked the expert to compare two hypothetical patient profiles, which were otherwise similar but different at two items at a time, and to select which item showed a more severe stage of inflammation or osteochondral damage. In addition, experts ranked 14 JAMRIS-SIJ grade only or image + grade patient vignettes while blinded to the CAS-derived weights. The validity of the weighted JAMRIS-SIJ was tested by comparing the expert CAS-weighted score and the image + grade ranking method. Seventeen experts completed the CAS (11 radiologists and 6 rheumatologists). Considering the point value for inflammation domain items, osteitis (24.7%) and bone marrow edema (24.3%) had higher group-averaged percentage weights compared to inflammation in erosion cavity (16.9%), joint space enhancement (13.1%), joint space fluid (9.1%), capsulitis (7.3%), and enthesitis (4.6%). Similarly, concerning the damage domain, ankylosis (41.3%) and erosion (25.1%) showed higher group-averaged weights compared to backfill (13.9%), sclerosis (10.7%), and fat metaplasia lesion (9.1%). The Spearman correlation coefficients of the CAS-weighted vignette order and unweighted JAMRIS-SIJ grade only order vignettes for all experts were 0.79 for inflammation and 0.80 for damage. The correlations of image vignettes among imaging experts to CAS were 0.75 for inflammation and 0.90 for damage. The multicriteria decision analysis identified differences in relative weights among the JAMRIS-SIJ measurement items. The determination of the relative weights provided expert-driven score scaling and face validity for the JAMRIS-SIJ, enabling the future evaluation of its longitudinal construct validity.<\/jats:p>","DOI":"10.3390\/jcm12072729","type":"journal-article","created":{"date-parts":[[2023,4,6]],"date-time":"2023-04-06T02:29:58Z","timestamp":1680748198000},"page":"2729","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Determination of Relative Weightings for Sacroiliac Joint Pathologies in the OMERACT Juvenile Arthritis Magnetic Resonance Imaging Sacroiliac Joint Score"],"prefix":"10.3390","volume":"12","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-2018-9627","authenticated-orcid":false,"given":"Tarimobo M.","family":"Otobo","sequence":"first","affiliation":[{"name":"Department of Diagnostic Radiology, Hospital for SickKids, Toronto, ON M5G 0A4, Canada"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mirkamal","family":"Tolend","sequence":"additional","affiliation":[{"name":"Department of Diagnostic Radiology, Hospital for SickKids, Toronto, ON M5G 0A4, Canada"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Arthur B.","family":"Meyers","sequence":"additional","affiliation":[{"name":"Department of Radiology and Medical Imaging, Cincinnati Children\u2019s Hospital Medical Center, Cincinnati, OH 45229, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2671-3036","authenticated-orcid":false,"given":"Iwona","family":"Sudol-Szopinska","sequence":"additional","affiliation":[{"name":"Department of Radiology, National Institute of Geriatrics, Rheumatology and Rehabilitation, 02-637 Warsaw, Poland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3199-168X","authenticated-orcid":false,"given":"Sayali","family":"Joshi","sequence":"additional","affiliation":[{"name":"Department of Diagnostic Radiology, Hospital for SickKids, Toronto, ON M5G 0A4, Canada"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jennifer","family":"Stimec","sequence":"additional","affiliation":[{"name":"Department of Diagnostic Radiology, Hospital for SickKids, Toronto, ON M5G 0A4, Canada"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0244-0168","authenticated-orcid":false,"given":"Nele","family":"Herregods","sequence":"additional","affiliation":[{"name":"Division of Pediatric of Radiology, Universitair Ziekenhuis Ghent, 9000 Ghent, Belgium"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5314-2297","authenticated-orcid":false,"given":"Jacob L.","family":"Jaremko","sequence":"additional","affiliation":[{"name":"Department of Radiology, University of Alberta, Edmonton, AB T6G 2R3, Canada"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Shirley M. L.","family":"Tse","sequence":"additional","affiliation":[{"name":"Division of Rheumatology, SickKids, Toronto, ON M5G 1X8, Canada"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Nigil","family":"Haroon","sequence":"additional","affiliation":[{"name":"Department of Rheumatology, Toronto Western Hospital, Toronto, ON M5T 2S8, Canada"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5506-084X","authenticated-orcid":false,"given":"Rahim","family":"Moineddin","sequence":"additional","affiliation":[{"name":"Department of Family Medicine, University of Toronto, Toronto, ON M5G 1V7, Canada"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Nikolay","family":"Tzaribachev","sequence":"additional","affiliation":[{"name":"Department of Pediatric Rheumatology, Medical Center Bad Bramstedt, 24576 Bramstedt, Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Simone","family":"Appenzeller","sequence":"additional","affiliation":[{"name":"Department of Rheumatology, Universidade Estadual de Campinas, S\u00e3o Paulo 13083-970, Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Michal","family":"Znajdek","sequence":"additional","affiliation":[{"name":"Department of Radiology, National Institute of Geriatrics, Rheumatology and Rehabilitation, 02-637 Warsaw, Poland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Manuela","family":"Perez","sequence":"additional","affiliation":[{"name":"Department of Diagnostic Radiology, University of Toronto, Toronto, ON M5G 1V7, Canada"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Aloysius E.","family":"Ligha","sequence":"additional","affiliation":[{"name":"Department of Anatomy, Niger Delta University, Amassoma 560103, Nigeria"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Lennart","family":"Jans","sequence":"additional","affiliation":[{"name":"Department of Radiology, University of Alberta, Edmonton, AB T6G 2R3, Canada"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Emilio J.","family":"Inarejos Clemente","sequence":"additional","affiliation":[{"name":"Department of Radiology, Hospital Sant Joan de Deu, 08950 Barcelona, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Pamela","family":"Weiss","sequence":"additional","affiliation":[{"name":"Department of Rheumatology, Children Hospital of Philadelphia, Philadelphia, PA 19104, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Olympia","family":"Papakonstantinou","sequence":"additional","affiliation":[{"name":"Department of Radiology, National and Kapodistrian University of Athens, 157-72 Athens, Greece"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Eva","family":"Kirkhus","sequence":"additional","affiliation":[{"name":"Department of Radiology, Oslo University Hospital, 0372 Oslo, Norway"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Marion A. J.","family":"van Rossum","sequence":"additional","affiliation":[{"name":"Amsterdam Rheumatology and Immunology Center, Read and Emma Children\u2019s Hospital, Amsterdam University Medical Center, 1105 Amsterdam, The Netherlands"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Dax G.","family":"Rumsey","sequence":"additional","affiliation":[{"name":"Division of Rheumatology, Department of Pediatrics, University of Alberta, Edmonton, AB T6G 1C9, Canada"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"John","family":"Carrino","sequence":"additional","affiliation":[{"name":"Department of Radiology and Imaging, Hospital for Special Surgery, New York, NY 10021, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jonathan D.","family":"Akikusa","sequence":"additional","affiliation":[{"name":"Department of General Medicine, Rheumatology Service, Royal Children\u2019s Hospital Melbourne, Melbourne, VIC 3052, Australia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3478-5665","authenticated-orcid":false,"given":"Philip G.","family":"Conaghan","sequence":"additional","affiliation":[{"name":"Department of Rheumatology, University of Leeds, Leeds LS7 4SA, UK"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Andrea S.","family":"Doria","sequence":"additional","affiliation":[{"name":"Department of Diagnostic Radiology, Hospital for SickKids, Toronto, ON M5G 0A4, Canada"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2023,4,6]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"190","DOI":"10.3899\/jrheum.180168","article-title":"Toward New Classification Criteria for Juvenile Idiopathic Arthritis: First Steps, Pediatric Rheumatology International Trials Organization International Consensus","volume":"46","author":"Martini","year":"2019","journal-title":"J. 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