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Figure 2. The full data set is shown on (a) the left, each B-scan is represented by a white "soccer goal-post" shape. A sagittal plane through the data set is chosen (arrows) and the reformatted data (dashed border) is demonstrated on (b) the right against one of the original B-scans (solid border). a. talar head, b. navicular, c. medial cuneiform, d. intermediate cuneiform, e. lateral cuneiform, f. first metatarsal, g. approximate position of the calcaneum.