Cortical bone segmentation from mr dixon data

A method for segmenting MR Dixon image data;

• the method comprising the steps of:
• receiving an MR Dixon water image relating to a region of interest;
• receiving an MR Dixon fat image relating to a region of interest;
• adapting a surface mesh model having a plurality of mesh elements to the region of interest by:
• for each mesh element in the region of interest:
• selecting, from the current mesh element position and from a plurality of positions displaced from the current mesh element position, a water target position based on a water image feature response in the MR Dixon water image;
• selecting, from the current mesh element position and from a plurality of positions displaced from the current mesh element position, a fat target position based on a fat image feature response in the MR Dixon fat image;
• and
• displacing each mesh element from its current position to a new position based on both its water target position and its corresponding fat target position.