Fig. 5. Example of synovitis area detection with a machine learning-based pipeline, as suggested by Mielnik et al. [12].

A-D. The detection of synovitis in the proximal interphalangeal joint (A), detection of synovitis in the metacarpophalangeal joint (B), example of underestimated region of synovitis (C), example of error in synovial hypertrophy detection (D) are shown. Reprinted from Mielnik et al. Ultrasound Med Biol 2018;44:489-494, Copyright (2020), with permission from Elsevier [12].