Fig. 1From: KARAOKE: Krill oil versus placebo in the treatment of knee osteoarthritis: protocol for a randomised controlled trialExample of changes in effusion-synovitis area (cm2). Effusion-synovitis size decreased from baseline to follow-up 2.6 years later (a, b). Effusion/synovitis are present in both the suprapatellar pouch and central portion. Overall, effusion size is smaller at follow-up MRIBack to article page