Rheumatoid arthritis

Imaging tests as predictors of progression to rheumatoid arthritis in clinically suspect arthralgia: a systematic review and meta-analysis

Rheumatology (Oxford)Published Systematic review and meta-analysis of diagnostic accuracy studies

Authors' conclusion

Evidence for MRI or US in predicting RA/IA in people with CSA is heterogeneous and of variable quality.

Study context

Population
People with inflammatory joint pain or clinically suspect arthralgia (CSA) without clinical synovitis39 studies · 42 cohorts
Participants
2,782 / 6,805 / 3,362
Comparison
Imaging tests for predicting progression to RA/inflammatory arthritis (IA)
  • MRIn = 2,782
  • Ultrasound (US)n = 6,805
  • Other imaging testsn = 3,362
Outcome
Diagnostic accuracy (sensitivity and specificity) of imaging tests for predicting RA/IA; reference standards RA classification criteria, MTX initiation or development of IA
Methodological detailsbivariate and hierarchical SROC models, QUADAS-2 validity assessment
  • Bivariate and hierarchical SROC models
  • QUADAS-2 validity assessment

Pooled result

As reported in the abstract

Prediction of RA/IA
GroupSensitivity, Power Doppler ≥1 in ≥1 joint (95% CI 18%-60%; seven studies)Sensitivity, synovitis in ≥1 joint (95% CI 29%-62%; four studies)Specificity, Power Doppler ≥1 in ≥1 joint (95% CI 82%-94%; seven studies)Specificity, synovitis in ≥1 joint (95% CI 66%-94%; four studies)
US37%— not stated in the abstract90%— not stated in the abstract
MRI— not stated in the abstract45%— not stated in the abstract84%

Sensitivity, Power Doppler ≥1 in ≥1 joint (95% CI 18%-60%; seven studies)

US37%
MRI— not stated in the abstract

Sensitivity, synovitis in ≥1 joint (95% CI 29%-62%; four studies)

US— not stated in the abstract
MRI45%

Specificity, Power Doppler ≥1 in ≥1 joint (95% CI 82%-94%; seven studies)

US90%
MRI— not stated in the abstract

Specificity, synovitis in ≥1 joint (95% CI 66%-94%; four studies)

US— not stated in the abstract
MRI84%

— not stated in the abstract

Original publication

Imaging tests as predictors of progression to rheumatoid arthritis in clinically suspect arthralgia: a systematic review and meta-analysis. Rheumatology (Oxford). Published 25 January 2025. doi:10.1093/rheumatology/keaf045

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