Preliminary Definitions for Sacroiliac Joint Pathologies in the OMERACT Juvenile Idiopathic Arthritis Magnetic Resonance Imaging Score (OMERACT JAMRIS-SIJ)

J Rheumatol. 2019 Sep;46(9):1192-1197. doi: 10.3899/jrheum.181115. Epub 2019 Feb 15.

Abstract

Objective: To develop definitions for the assessment of magnetic resonance imaging (MRI) pathologies of the sacroiliac joints (SIJ) in juvenile idiopathic arthritis.

Methods: An Outcome Measures in Rheumatology (OMERACT) consensus-driven methodology consisting of iterative surveys and focus group meetings within an international group of rheumatologists and radiologists.

Results: Two domains, inflammation and structural, were identified. Definitions for bone marrow edema, joint space inflammation, capsulitis, and enthesitis were derived for joint inflammation; sclerosis, erosion, fatty lesion, and ankylosis were defined for assessing structural joint changes.

Conclusion: Preliminary consensus-driven definitions for inflammation and structural elements have been derived, underpinning the ongoing development of the OMERACT Juvenile Arthritis MRI SIJ scoring system (OMERACT JAMRIS-SIJ).

Keywords: JUVENILE IDIOPATHIC ARTHRITIS; MAGNETIC RESONANCE IMAGING; OMERACT; OUTCOME ASSESSMENT; SACROILIITIS.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Arthritis, Juvenile / diagnostic imaging*
  • Humans
  • Inflammation / diagnostic imaging
  • Magnetic Resonance Imaging
  • Sacroiliac Joint / diagnostic imaging*
  • Sacroiliitis / diagnostic imaging*
  • Severity of Illness Index