Fig. 2
From: Segmentation of the lateral femoral notch sign with MRI using a new measurement technique
Segmentation of the MRI. (a) sagittal MRI with lateral femoral notch. Alignment of the axis: (b) line parallel to the axis of the femoral shaft running through the deepest point of the intercondylar notch (pink line), (c) most posterior aspect of the lateral femoral condyle (dark blue line), “weight bearing area” (light blue line), both parallel to the axis of the femoral shaft. (d)Segmentation of the defect: the subchondral bone area (green line), (e) marking of the defect (curved pink line), (f) area of the defect (light blue area)