1. Real-time vs static scoring in musculoskeletal ultrasonography in patients with inflammatory hand osteoarthritis.
- Author
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van de Stadt LA, Kroon FPB, Rosendaal FR, van der Heijde D, Reijnierse M, Riyazi N, de Slegte R, van Zeben J, Allaart CF, Kloppenburg M, and Kortekaas MC
- Subjects
- Cross-Sectional Studies, Humans, Prednisolone therapeutic use, Reproducibility of Results, Severity of Illness Index, Ultrasonography methods, Ultrasonography, Doppler, Osteoarthritis diagnostic imaging, Osteoarthritis drug therapy, Synovitis diagnostic imaging, Synovitis drug therapy
- Abstract
Objectives: Agreement between real-time and static ultrasonography has not been studied in musculoskeletal diseases. We studied this agreement in inflammatory hand OA., Methods: Ultrasonography was performed blinded to clinical information of 30 joints of 75 patients with hand OA, treated with prednisolone in a randomized placebo-controlled double-blind trial. Images were scored real-time at acquisition and stored images were scored static (paired in known chronological order) for inflammatory features and osteophytes (score 0-3). Agreement between methods was studied at joint level with quadratic weighted kappa. At patient level intra-class correlations (ICC) of sum scores and change in sum-scores (delta baseline-week 6) were calculated. Responsiveness of scoring methods was analysed with generalized estimating equations (GEE) with treatment as independent and ultrasonography findings as dependent variable., Results: Agreement at baseline was good to excellent at joint level (kappa 0.72-0.88) and moderate to excellent at patient level (ICC 0.58-0.91). Agreement for change in sum scores was poor to fair for synovial thickening and effusion (ICC 0.18 and 0.34, respectively), while excellent for Doppler signal (ICC 0.80). Real-time ultrasonography discriminated between prednisolone and placebo with a mean between-group difference of synovial thickening of -2.5 (95% CI: -4.7, -0.3). Static ultrasonography did not show a decrease in synovial thickening., Conclusion: While cross-sectional agreement between real-time and static ultrasonography is good, static ultrasonography measurement of synovial thickening did not show responsiveness to prednisone therapy while real-time ultrasonography did. Therefore, when ultrasonography is used in clinical trials, real-time dynamic scoring should remain the standard for now., (© The Author(s) 2021. Published by Oxford University Press on behalf of the British Society for Rheumatology.)
- Published
- 2022
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