The study examines whether a mechanical arm ultrasound system provides diagnostic accuracy comparable to expert-performed full ultrasound for detecting key joint components and whether it can reduce acquisition variability without compromising accuracy, as measured by false-positive and false-negative rates.
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1. Diagnostic Accuracy of 3DUS compared with full ultrasound and MRI
Timeframe: Day 1
Ability of 3DUS to quantify individual joint components (synovial hypertrophy, hemarthrosis, hemosiderin, bone erosions/subchondral cysts, cartilage loss)
Timeframe: Day 1