Journal
JOURNAL OF RHEUMATOLOGY
Volume 49, Issue 6, Pages 72-74Publisher
J RHEUMATOL PUBL CO
DOI: 10.3899/jrheum.211340
Keywords
GRAPPA; inflammation; MRI; psoriasis; psoriatic arthritis; spine
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There is a renewed interest in defining the axial inflammation component of Psoriatic Arthritis (PsA), as recent studies suggest that this entity may respond differently to treatment compared to patients with axial spondyloarthritis. A workshop was conducted to review the literature on diagnosing PsA and to determine the most appropriate criteria. It was widely agreed that magnetic resonance imaging (MRI) plays an important role in defining axial inflammation in PsA, and it would be ideal to establish optimal MRI quantitative cut-offs for lesions in the sacroiliac joints and/or spine that reflect imaging typical of axial inflammation in PsA.
There has been a resurgence of interest in defining the axial inflammation component of psoriatic arthritis (PsA) since recent randomized controlled trials (RCTs) raised the possibility that this entity may respond differentially to therapeutics compared to patients with axial spondyloarthritis. A workshop was conducted during the 2021 Group for Research and Assessment of Psoriasis and Psoriatic Arthritis annual meeting to review the literature on diagnosing PsA and to determine which criteria might be most appropriate. There was quite strong agreement that magnetic resonance imaging (MRI) had an important role to play in helping to define axial inflammation in PsA and that a data-driven methodology for generating optimal MRI quantitative cut-offs for lesions in the sacroiliac joints and/or spine that reflect imaging typical of axial inflammation in PsA would be most desirable.
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