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Maksymowych WP, Herregods N, Varma N, Meyers AB, Stimec J, Doria AS, Tzaribachev N, Otobo TM, van Rossum MA, Paschke J, Wichuk S, Lambert RG. Systematic calibration reduces sources of variability for the preliminary OMERACT juvenile idiopathic arthritis MRI- sacroiliac joint score (OMERACT JAMRIS-SIJ). Semin Arthritis Rheum 2024; 64:152299. [PMID: 38039747 DOI: 10.1016/j.semarthrit.2023.152299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2023] [Revised: 10/23/2023] [Accepted: 10/26/2023] [Indexed: 12/03/2023]
Abstract
OBJECTIVE To determine whether systematic calibration enhances scoring proficiency of the OMERACT juvenile idiopathic arthritis MRI-Sacroiliac Joint score (JAMRIS-SIJ) and whether contrast-enhancement enhances its performance. METHODS MRI SIJ scans of 50 cases with juvenile spondyloarthritis were scored by 7 raters after calibration with 3 different knowledge transfer tools. RESULTS Calibrated readers achieved greater reliability for scoring certain inflammatory and structural lesions. Sensitivity and reliability for scoring inflammatory lesions was greater on fluid-sensitive compared to contrast-enhanced sequences. CONCLUSION Systematic calibration should be implemented prior to the use of JAMRIS-SIJ for clinical trials. It is unlikely that contrast-enhanced MRI will improve the performance of this method.
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Affiliation(s)
- Walter P Maksymowych
- Department of Medicine, University of Alberta, Edmonton, Canada; CARE Arthritis, Edmonton, Alberta, Canada.
| | - Nele Herregods
- Division of Pediatric Radiology, Universitair Ziekenhuis Ghent, Ghent, Belgium
| | - Nisha Varma
- Department of Paediatric Radiology, The Royal Children's Hospital Melbourne, Melbourne, Victoria, Australia; Murdoch Children's Research Institute, The Royal Children's Hospital Melbourne, Melbourne, Victoria, Australia; Medical Imaging Department, Western Health, Melbourne, Victoria, Australia
| | - Arthur B Meyers
- Department of Radiology, Cincinnati Children's Hospital Medical Center, Cincinnati, USA
| | - Jennifer Stimec
- Department of Diagnostic Imaging, The Hospital for Sick Children, Toronto, Canada; Department of Medical Imaging, Temerty Faculty of Medicine, University of Toronto, Toronto, Canada
| | - Andrea S Doria
- Department of Diagnostic Imaging, The Hospital for Sick Children, Toronto, Canada
| | - Nikolay Tzaribachev
- Department of Pediatric Rheumatology, Medical Center Bad Bramstedt, Bramstedt, Germany
| | - Tarimobo M Otobo
- Department of Diagnostic Imaging, The Hospital for Sick Children, Toronto, Canada
| | - Marion A van Rossum
- Amsterdam Rheumatology and Immunology Center, Reade, and Emma Children's Hospital Amsterdam UMC, University of Amsterdam, Amsterdam, the Netherlands
| | | | | | - Robert G Lambert
- Department of Radiology and Diagnostic Imaging, University of Alberta, Edmonton, Canada
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