Atlas of MRI findings of sacroiliitis in pediatric sacroiliac joints to accompany the updated preliminary OMERACT pediatric JAMRIS (Juvenile Idiopathic Arthritis MRI Score) scoring system: Part I: Active lesions |
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| Affiliation: | 1. Department of Radiology and Nuclear Medicine, Ghent University Hospital, C. Heymanslaan 10, 9000 Ghent, Belgium;2. Department of Rheumatology, University of Alberta, Canada;3. Institute of Medical Sciences, Faculty of Medicine, University of Toronto, and Department of Diagnostic Imaging, The Hospital for Sick Children and Department of Translational Medicine, SickKids Research Institute, Peter Gilgan Center for Research and Learning, University of Toronto, Toronto, Canada;4. Department of Radiology, National Institute of Geriatrics, Rheumatology and Rehabilitation, Warsaw, Poland;5. Department of Radiology, Cincinnati Children''s Hospital, Cincinnati, OH, United States;6. Amsterdam Rheumatology and Immunology Center, Reade, and Emma Children''s Hospital Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands;7. Department of Radiology, Oslo University Hospital, Oslo, Norway;8. Department of Radiology, Christian Medical College, Vellore, India;9. Faculty of Medical Sciences, University of Campinas, Campinas, Brazil;10. University of Pennsylvania Perelman School of Medicine, Division of Rheumatology, Children''s Hospital of Philadelphia and Department of Pediatrics, University of Pennsylvania, Philadelphia, USA;11. Division of Rheumatology, The Hospital for Sick Children, Toronto, Canada;12. Department of Medical Imaging, University of Toronto, Toronto and Department of Diagnostic Imaging, The Hospital for Sick Children, University of Toronto, Toronto, Canada;13. Canada Department of Radiology and Diagnostic Imaging, University of Alberta and WC Mackenzie Health Sciences Center, Edmonton, Alberta, Canada;1. Massachusetts General Hospital, 55 Fruit St., Boston, MA 02114, USA;1. Dept. of Histopathology, Leeds Teaching Hospitals Trust, Leeds, UK;2. Leeds Institute of Cardiovascular & Metabolic Medicine, University of Leeds, Leeds, UK;3. Leeds Institute of Rheumatic & Musculoskeletal Medicine, University of Leeds, Leeds, UK;4. Leeds Biomedical Research Centre, Leeds Teaching Hospitals NHS Trust, Leeds, UK;1. Division of Pediatric Rheumatology, Department of Pediatrics, Indiana University School of Medicine, Indianapolis, IN, USA;2. Rheumatology, Department of Medicine, Lewis Katz School of Medicine at Temple University, Philadelphia, PA;3. Division of Pediatric Rheumatology, Department of Pediatrics, The University of North Carolina, Chapel Hill, NC, USA;4. Division of Pediatric Rheumatology, Department of Pediatrics, Renaissance School of Medicine at Stony Brook University, Stony Brook Children''s Hospital, Stony Brook, NY, USA;5. Division of Pediatric Rheumatology, Department of Pediatrics, Children''s Hospital of The King''s Daughters, Eastern Virginia Medical School, Norfolk, VA, USA;6. Division of Immunology, Department of Internal Medicine, University of Iowa Hospitals & Clinics, Iowa City, IA, USA;7. Division of Rheumatology, ASST Gaetano Pini, Milan, Italy;8. Division of Paediatric Rheumatology, Department of Paediatrics, Schulich School of Medicine & Dentistry, University of Western Ontario, London, ON, Canada;9. Rheumatology Unit, Meyer Children Hospital, University of Florence, Florence, Italy;10. Division of Rheumatology, Department of Medicine, Tufts Medical Center, Boston, Massachusetts, USA;11. Pediatric Rheumatology, University of Vermont Medical Center, Burlington, VT, USA;12. Departments of Pediatric Rheumatology, King Faisal Specialist Hospital and Research Centre, Riyadh, Saudi Arabia;13. Pediatric Rheumatology, Children''s Mercy Hospital, Kansas City, Missouri, USA;14. CRMO Patient/parent Partner;15. Department of Human Science, Georgetown University, Washington, DC, USA;p. Department of Paediatric Rheumatology, University Hospitals Bristol NHS Foundation Trust and Translational Health Sciences, University of Bristol, Bristol, UK;q. Pediatric Rheumatology and Immunology, Department of Pediatrics, Universitätsklinikum Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany;r. Division of Pediatric Rheumatology, Department of Pediatrics, Joseph M. Sanzari Children''s Hospital, Hackensack University Medical Center and Hackensack Meridian School of Medicine, Hackensack, New Jersey, USA;s. Division of Rheumatology, Department of Pediatrics, BC Children''s Hospital, University of British Columbia, Vancouver, BC, Canada;t. Division of Pediatric Rheumatology, Hospital for Special Surgery, NY, NY, USA;u. Division of Pediatric Rheumatology, Department of Pediatrics, Hacettepe University, Ankara, Turkey;v. Division of Immunology, Rheumatology Program, Department of Pediatrics, Boston Children''s Hospital, Harvard Medical School, Boston, MA, USA;w. Stead Family Department of Pediatrics, University of Iowa Carver College of Medicine, Iowa City, IA, USA;x. Division of Rheumatology, Department of Medicine, Ottawa hospital Research Institute, School of Epidemiology and Public Health, Faculty of Medicine, University of Ottawa, Ottawa, Canada;y. Rheumatology Service Department of General Medicine Royal Children''s Hospital, Melbourne, Australia;z. Department of Women''s & Children''s Health, Institute of Life Course and Medical Sciences, University of Liverpool, Liverpool, UK;11. Department of Pediatric Rheumatology, Alder Hey Children''s NHS Foundation Trust Hospital, Liverpool, UK;12. Department of Rheumatology, Swedish Medical Center, Providence St Joseph Health and University of Washington, Seattle, WA, USA;13. Pediatric Rheumatology, Seattle Children''s Hospital, University of Washington, Seattle, WA, USA;1. Faculty of Health and Applied Sciences, University of the West of England, Bristol, United Kingdom;2. Academic Rheumatology, Bristol Royal Infirmary, United Kingdom;3. Rheumatology Unit, Royal Adelaide Hospital and Discipline of Medicine, University of Adelaide, South Australia 5000, Australia;4. Rheumatology department, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal;5. Health Sciences Research Unit: Nursing (UICISA: E), Escola Superior de Enfermagem de Coimbra, Coimbra, Portugal;6. Department of Pharmacy, Radboudumc, Nijmegen, the Netherlands;7. OMERACT Patient Research Partner, the Netherlands;8. Health Psychology Section, Institute of Psychiatry, Psychology and Neuroscience, King''s College London, United Kingdom;9. Duke University School of Medicine, Durham, NC, USA;10. DANBIO and Copenhagen Center for Arthritis Research (COPECARE), Center for Rheumatology and Spine Diseases, Centre of Head and Orthopedics, Rigshospitalet, Copenhagen, Denmark;11. Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark;12. Department of Medicine, University of Toronto. Canada;13. Mount Sinai Hospital, Toronto, Ontario, Canada;14. Patient Research Partner, Canada;15. Department of Epidemiology & Data Science; and Amsterdam Rheumatology and Immunology Center, Amsterdam University Medical Centers, Vrije Universiteit, Amsterdam, the Netherlands;p. School of Epidemiology and Public Health, University of Ottawa, Ottawa ON, Canada;q. Medicine Service, VA Medical Center, Birmingham, AL, USA;r. Department of Medicine at the School of Medicine, University of Alabama at Birmingham (UAB), USA;s. Department of Epidemiology at the UAB School of Public Health, Birmingham, AL, USA;t. Division of Rheumatology, Department of Medicine 3, Medical University of Vienna, Austria;u. Institute for Clinical and Biomedical research (iCBR), Faculty of Medicine, University of Coimbra, Portugal;v. Centre for Rheumatic Diseases, Weston Education Centre, Kings College London, United Kingdom;w. Section for Outcomes Research, Center for Medical Statistics, Informatics and Intelligent Systems, Medical University of Vienna, Vienna, Austria;x. Division of Rheumatology, Department of Medicine (Solna), Karolinska Institutet, Stockholm, Sweden;y. Department of Medicine, University of Ottawa, Ottawa, Canada |
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| Abstract: | Magnetic resonance imaging (MRI) is an increasingly important tool for identifying involvement of the sacroiliac joints (SIJ) in juvenile idiopathic arthritis (JIA). The key feature for diagnosing active sacroiliitis is bone marrow edema (BME), but other features of active arthritis such as joint space inflammation, inflammation in an erosion cavity, capsulitis and enthesitis can be seen as well. Structural changes may also be seen. Systematic MRI assessment of inflammation and structural damage may aid in monitoring the disease course, choice of therapeutics and evaluating treatment response. In this pictorial essay, we illustrate normal MRI findings and growth-related changes of the SIJ in the pediatric population, as well as the different MRI features of SIJ inflammation. This atlas demonstrates fundamental MRI disease features of active inflammation in a format that can serve as a reference for assessing SIJ arthritis according to the updated preliminary JAMRIS (Juvenile Idiopathic Arthritis MRI Score) scoring system proposed by the MRI in JIA working group of Outcome Measures in Rheumatology and Clinical Trials (OMERACT). The atlas is intended to be read in conjunction with its companion Part 2, Structural Lesions. |
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