Fig. 1From: Comparison of 3D quantitative osteoarthritis imaging biomarkers from paired CT and MR images: data from the IMI-APPROACH studyThree-dimensional measurement of central medial and lateral mean joint space width (3DJSW). The central medial region is shown in red, and the lateral region is shown in blue (right figure). The coronal view of a typical knee is shown in the left figure, which shows where these two regions are located, and how measurements are taken, normal to the 3D tibial surfaceBack to article page