Current Status of Efforts on Standardizing Magnetic Resonance Imaging of Juvenile Idiopathic Arthritis: Report from the OMERACT MRI in JIA Working Group and Health-e-Child.

Authors:
Charlotte M Nusman
Charlotte M Nusman
University of Amsterdam
Netherlands
Lil-Sofie Ording Muller
Lil-Sofie Ording Muller
Oslo University Hospital
Norway
Robert Hemke
Robert Hemke
University of Amsterdam
Netherlands
Andrea S Doria
Andrea S Doria
The Hospital for Sick Children
Canada
Derk Avenarius
Derk Avenarius
University Hospital North Norway
Norway
Nikolay Tzaribachev
Nikolay Tzaribachev
University Children's Hospital
Germany
Clara Malattia
Clara Malattia
Università di Genova
Italy

J Rheumatol 2016 Jan 15;43(1):239-44. Epub 2015 May 15.

From the Department of Radiology, Academic Medical Center, Amsterdam, The Netherlands; Department of Pediatric Hematology, Immunology, Rheumatology and Infectious Disease, Emma Children's Hospital, Academic Medical Center, Amsterdam, The Netherlands; Department of Radiology, Oslo University Hospital, Oslo, Norway; Department of Diagnostic Imaging, The Hospital for Sick Children, Toronto, Ontario, Canada; Department of Radiology, University Hospital North Norway, Tromsø, Norway; Pediatric Rheumatology Research Institute, Bad Bramstedt, Germany; Department of Pediatrics, University of Genoa, Genoa, Italy; Department of Pediatric Rheumatology, Reade Institute, location Jan van Breemen, Amsterdam, The Netherlands; Department of Clinical Medicine, K1, University of Bergen, and Department of Pediatric Radiology, Haukeland University Hospital, Bergen, Norway.C.M. Nusman, MSc, Department of Radiology, Academic Medical Center; Department of Pediatric Hematology, Immunology, Rheumatology and Infectious Disease, Emma Children's Hospital, Academic Medical Center; L.S. Ording Muller, MD, PhD, Department of Radiology, Oslo University Hospital; R. Hemke, MD, PhD, Department of Radiology, Academic Medical Center; Department of Pediatric Hematology, Immunology, Rheumatology and Infectious Disease, Emma Children's Hospital, Academic Medical Center; A.S. Doria, MD, PhD, Department of Diagnostic Imaging, The Hospital for Sick Children; D. Avenarius, MD, Department of Radiology, University Hospital North Norway; N. Tzaribachev, MD, Pediatric Rheumatology Research Institute; C. Malattia, MD, PhD, Department of Pediatrics, University of Genoa; M.A. van Rossum, MD, PhD, Department of Pediatric Hematology, Immunology, Rheumatology and Infectious Disease, Emma Children's Hospital, Academic Medical Center, and Department of Pediatric Rheumatology, Reade Institute, location Jan van Breemen; M. Maas, MD, PhD, Department of Radiology, Academic Medical Center; K. Rosendahl, MD, PhD, Department o

Objective: To report on the progress of an ongoing research collaboration on magnetic resonance imaging (MRI) in juvenile idiopathic arthritis (JIA) and describe the proceedings of a meeting, held prior to Outcome Measures in Rheumatology (OMERACT) 12, bringing together the OMERACT MRI in JIA working group and the Health-e-Child radiology group. The goal of the meeting was to establish agreement on scoring definitions, locations, and scales for the assessment of MRI of patients with JIA for both large and small joints.

Methods: The collaborative work process included premeeting surveys, presentations, group discussions, consensus on scoring methods, pilot scoring, conjoint review, and discussion of a future research agenda.

Results: The meeting resulted in preliminary statements on the MR imaging protocol of the JIA knee and wrist and determination of the starting point for development of MRI scoring systems based on previous studies. It was also considered important to be descriptive rather than explanatory in the assessment of MRI in JIA (e.g., "thickening" instead of "hypertrophy"). Further, the group agreed that well-designed calibration sessions were warranted before any future scoring exercises were conducted.

Conclusion: The combined efforts of the OMERACT MRI in JIA working group and Health-e-Child included the assessment of currently available material in the literature and determination of the basis from which to start the development of MRI scoring systems for both the knee and wrist. The future research agenda for the knee and wrist will include establishment of MRI scoring systems, an atlas of MR imaging in healthy children, and MRI protocol requisites.

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January 2016
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