Knee magnetic resonance image obtained with fast low angle shot (FLASH) sequences with water excitation. (a) Double oblique coronal image showing the regions of interest used in the current analysis. (b) Same coronal image with the total area of subchondral bone (tAB) being segmented in green, the area of the cartilage surface (AC) in magenta, and the filling between the two surfaces in turquoise. Note the denuded area (tAB not covered by AC) in the medial tibia and the medial femur. (c) Same coronal image with the medial tibial (MT) cartilage marked (segmented) blue, weight-bearing medial femoral cartilage (cMF) marked yellow, the lateral tibial cartilage marked green, and the lateral weight-bearing femoral cartilage marked red. (d) 3D reconstructions of knee cartilage plates from a sagittal data set in a different person: The femoro-tibial cartilages are labeled with the same colors as in (c), the patellar cartilage is labeled magenta and the trochlear (femoral) cartilage in turquoise.