PMC

Example of 3D rendering of the baseline cartilage (a), follow-up cartilage (b), cartilage gained (c) and cartilage lost (d). (c) and (d) also show the indexed location as a red ‘×’.

(a) Example of segmentation of the bone-cartilage interface. The reader also places landmarks denoting the outer-most “tips” of the cartilage in the slice, which are used to constrain the segmentation. (b) shows an example of a segmented slice where the bone-cartilage margin is combined with the remainder of the cartilage border.