oa_2230_sm_digital_content_1.wmvWindows Media video1263KSupplemental Digital Content 1. An animation of the unprocessed X-ray slices from the μCT scan. This represents every fifth X-ray image (a total of 241 images out of 1206) arranged in sequence as the sample performs a full 360° rotation. The sample is mounted using double-sided adhesive tape on a Perspex plinth appearing as a faint grey zone at the base of the image. The outer table appears as the relatively homogenous zone at the base of the sample. The inner table with its distinct linear vascularity is at the uppermost layer. Note the planar linear zone of greatly reduced density at near the mid level of the inner table. This is seen most clearly about halfway through the sequence and towards the end of the sequence. Once recognised, this feature can be observed throughout the duration of the animation.

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