Manouk de Hooge1, Rosaline van den Berg1, Victoria Navarro-Compán2, Monique Reijnierse3, Floris van Gaalen1, Karen Fagerli4, Robert Landewé5, Maikel van Oosterhout6, Roberta Ramonda7, Tom Huizinga1, Désirée van der Heijde1. 1. Rheumatology Department, Leiden University Medical Center, Leiden, The Netherlands. 2. Rheumatology Department, Leiden University Medical Center, Leiden, The Netherlands Rheumatology Department, University Hospital La Paz, Madrid, Spain. 3. Radiology Department, Leiden University Medical Center, Leiden, The Netherlands. 4. Rheumatology Department, Diakonhjemmet Hospital, Oslo, Norway. 5. Department of Clinical Immunology and Rheumatology, Amsterdam Medical Center, Amsterdam, The Netherlands. 6. Rheumatology Department, Groene Hart Ziekenhuis, Gouda, The Netherlands. 7. Rheumatology Unit, University of Padova, Padova, Italy.
Abstract
OBJECTIVES: To investigate the extent and performance of MRI lesions in the sacroiliac joint (MRI-SI) and spine (MRI-spine) in patients with suspected axial spondyloarthritis (axSpA). METHODS: MRI-SI/spine of patients with chronic back pain (onset <45 years) in the SPondyloArthritis Caught Early (SPACE) cohort were scored by two well-trained readers for inflammation, fatty lesions, erosions, sclerosis/ankylosis and syndesmophytes. MRI performances were tested against the Assessment of Spondyloarthritis international Society (ASAS) axSpA criteria (positive: imaging-arm+ or clinical-arm+; negative: possible axSpA (few spondyloarthritis (SpA) features present) or no SpA). Arbitrary cut-off levels for MRI lesions were set to assure at least 95% specificity (tested in the no SpA group). RESULTS: In total 126 patients were ASAS criteria positive (73 imaging-arm+ (22 by modified New York criteria (mNY)+; 51 by MRI+mNY-); 53 clinical-arm+) and 161 were ASAS criteria negative (89 possible axSpA and 72 no SpA). On MRI-SI (n=287), at least three fatty lesions (or at least three erosions) were seen in 45.5 (63.6)% of mNY+ patients, 15.7 (47.1)% of MRI+mNY- patients and 15.1 (13.2)% of clinical-arm+ patients versus 3.4 (6.7)% of possible axSpA patients and 2.8 (4.2)% of no SpA patients. A combined rule (at least five fatty lesions and/or erosions) performed equally well. Sclerosis and ankylosis were too rare to analyse. On MRI-spine (n=284), at least five inflammatory lesions (or at least five fatty lesions) were seen in 27.3 (18.2)% of mNY+ patients, 13.7 (21.6)% of MRI+mNY- patients and 3.8 (1.9)% of clinical-arm+ patients versus 4.5 (6.7)% of possible SpA patients and 2.9 (4.3)% of no SpA patients. CONCLUSIONS: The presence of (1) at least five fatty lesions and/or erosions on MRI-SI, (2) at least five inflammatory lesions or (3) at least five fatty lesions on MRI-spine allows an acceptable discrimination of axSpA and no SpA, while assuring >95% specificity. Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://www.bmj.com/company/products-services/rights-and-licensing/
OBJECTIVES: To investigate the extent and performance of MRI lesions in the sacroiliac joint (MRI-SI) and spine (MRI-spine) in patients with suspected axial spondyloarthritis (axSpA). METHODS:MRI-SI/spine of patients with chronic back pain (onset <45 years) in the SPondyloArthritis Caught Early (SPACE) cohort were scored by two well-trained readers for inflammation, fatty lesions, erosions, sclerosis/ankylosis and syndesmophytes. MRI performances were tested against the Assessment of Spondyloarthritis international Society (ASAS) axSpA criteria (positive: imaging-arm+ or clinical-arm+; negative: possible axSpA (few spondyloarthritis (SpA) features present) or no SpA). Arbitrary cut-off levels for MRI lesions were set to assure at least 95% specificity (tested in the no SpA group). RESULTS: In total 126 patients were ASAS criteria positive (73 imaging-arm+ (22 by modified New York criteria (mNY)+; 51 by MRI+mNY-); 53 clinical-arm+) and 161 were ASAS criteria negative (89 possible axSpA and 72 no SpA). On MRI-SI (n=287), at least three fatty lesions (or at least three erosions) were seen in 45.5 (63.6)% of mNY+ patients, 15.7 (47.1)% of MRI+mNY- patients and 15.1 (13.2)% of clinical-arm+ patients versus 3.4 (6.7)% of possible axSpA patients and 2.8 (4.2)% of no SpA patients. A combined rule (at least five fatty lesions and/or erosions) performed equally well. Sclerosis and ankylosis were too rare to analyse. On MRI-spine (n=284), at least five inflammatory lesions (or at least five fatty lesions) were seen in 27.3 (18.2)% of mNY+ patients, 13.7 (21.6)% of MRI+mNY- patients and 3.8 (1.9)% of clinical-arm+ patients versus 4.5 (6.7)% of possible SpA patients and 2.9 (4.3)% of no SpA patients. CONCLUSIONS: The presence of (1) at least five fatty lesions and/or erosions on MRI-SI, (2) at least five inflammatory lesions or (3) at least five fatty lesions on MRI-spine allows an acceptable discrimination of axSpA and no SpA, while assuring >95% specificity. Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://www.bmj.com/company/products-services/rights-and-licensing/
Authors: Alexis Jones; Timothy J P Bray; Peter Mandl; Margaret A Hall-Craggs; Helena Marzo-Ortega; Pedro M Machado Journal: Rheumatology (Oxford) Date: 2019-11-01 Impact factor: 7.580
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Authors: Fardina Malik; Ellen Scherl; Ulrich Weber; John A Carrino; Madeline Epsten; Stephanie Wichuk; Susanne J Pedersen; Joel Paschke; Sergio Schwartzman; Georg Kroeber; Walter P Maksymowych; Randy Longman; Lisa A Mandl Journal: Int J Rheum Dis Date: 2021-02-02 Impact factor: 2.454
Authors: Michael M Ward; Atul Deodhar; Lianne S Gensler; Maureen Dubreuil; David Yu; Muhammad Asim Khan; Nigil Haroon; David Borenstein; Runsheng Wang; Ann Biehl; Meika A Fang; Grant Louie; Vikas Majithia; Bernard Ng; Rosemary Bigham; Michael Pianin; Amit Aakash Shah; Nancy Sullivan; Marat Turgunbaev; Jeff Oristaglio; Amy Turner; Walter P Maksymowych; Liron Caplan Journal: Arthritis Rheumatol Date: 2019-08-22 Impact factor: 15.483