MRI-based volumetric assessment of joint effusion in knee osteoarthritis using proton density-weighted fat-suppressed and T1-weighted contrast-enhanced fat-suppressed sequences.

摘要

Osteoarthritic joints regularly show evidence of synovial activation even in the early stages of the disease [1, 2]. Synovial activation in osteoarthritis (OA) is reflected as synovial thickening and joint effusion on magnetic resonance imaging (MRI). The amount of synovitis appears to correlate with pain and may be a marker of structural change and clinical outcome [3, 4].