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. Author manuscript; available in PMC: 2020 Jan 1.
Published in final edited form as: Arthritis Rheumatol. 2018 Nov 29;71(1):73–81. doi: 10.1002/art.40660

Figure 2.

Figure 2.

MRI Grading of Effusion-synovitis (A-D) Axial fat-suppressed proton-density weighted MR images through the suprapatellar pouch, showing different grades of effusion-synovitis. (A) Grade 0, with no joint effusion-synovitis. (B) Grade 1 effusion-synovitis is depicted with mild distension of the joint cavity by fluid-equivalent signal within the suprapatellar pouch (arrows). (C) Grade 2 effusion-synovitis with moderate distension of the joint cavity (arrows). (D) Grade 3 effusion-synovitis with marked capsular distention.