Segmentation of a femur into 1 mm segments to calculate the average of relative blood flow (<i>rBF</i>).

<p>Each femur segment was represented by its distance from the center of the graft, with negative values representing segments closer to the proximal end (connecting to the pelvis) and positive values closer to the distal end (connecting to the tibia). The yellow part in the center denotes the inserted graft, and the red parts are the parts of the host femur.