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SYSTEM AND METHOD FOR CORONARY SEGMENTATION AND VISUALIZATION

  • US 20080100621A1
  • Filed: 10/11/2007
  • Published: 05/01/2008
  • Est. Priority Date: 10/25/2006
  • Status: Active Grant
First Claim
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1. A method of coronary vessel segmentation and visualization, comprising the steps of:

  • providing a digitized coronary image, said image comprising a plurality of intensities associated with a 3-dimensional grid of voxels;

    placing a plurality of seed points along an estimated centerline of a coronary vessel;

    selecting a seed point and constructing a cyclic graph around said seed point in a plane perpendicular to the centerline at the seed point;

    performing a multi-scale-mean shift filtering in said perpendicular plane to estimate image gradient values;

    detecting a boundary of said vessel using a minimum-mean-cycle optimization that minimizes a ratio of a cost of a cycle in said graph to a length of said cycle;

    constructing a sub-voxel accurate vessel boundary about a point on said centerline; and

    refining the location of said centerline point from said sub-voxel accurate boundary, wherein said steps of constructing a sub-voxel accurate vessel boundary and refining the centerline point location are repeated until convergence.

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