Development of an Ultrasound Imaging Atlas for Grading Osteoarthritis in the First Metatarsophalangeal Joint
Authors' conclusion
The AUTUSI atlas demonstrated excellent intraexaminer and interexaminer reproducibility for evaluating first MTPJ joint effusion, synovial hypertrophy, synovitis, joint space narrowing, osteophytes, and cartilage thickness.
Study context
- Population
- Participants with and without radiographically confirmed first metatarsophalangeal joint (MTPJ) osteoarthritis (OA)30 with first MTPJ OA
- Participants
- 57 participants
- Outcome
- Intraexaminer and interexaminer reproducibility of the AUTUSI atlas (percentage agreement and Gwet's AC2)
Methodological detailssemiquantitative ultrasound (US) atlas, 6 examiners, 2 sessions
- Semiquantitative US atlas
- 6 examiners
- 2 sessions
Main finding
As reported in the abstract
Reproducibility of AUTUSI atlas grading
Interexaminer percentage agreement (almost perfect-to-perfect)
96% to 100%
Interexaminer Gwet's AC2
0.81 to 1.00
Intraexaminer percentage agreement (moderate-to-perfect)
67% to 100%
Intraexaminer Gwet's AC2
0.54 to 1.00
Original publication
Development of an Ultrasound Imaging Atlas for Grading Osteoarthritis in the First Metatarsophalangeal Joint. Arthritis Care Res (Hoboken). Published 10 August 2024. doi:10.
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