Figure 1
From: Automatic estimation of knee effusion from limited MRI data

Examples of subjects with (a) Normal knee (MOAKS score 0), (b) Small effusion (MOAKS score 1), (c) Medium effusion (MOAKS score 2), and (d) Large (MOAKS score 3) effusion. In this work, a binary classification is used, with images as in panel (a) classified as without effusion, while images as in panels (b–d) are classified as with effusion.