Method and system for adjusting 3D CT vessel segmentation
AssigneeGeneral Electric Company
InventorsJohn V. Skinner, Gopal B. Avinash, Patricia Le Nezet, Sandeep Dutta, Saad Ahmed Sirohey, Deann Marie Haas
Life of this patent
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Abstract
Method and system for processing an object within a diagnostic image comprises segmenting a three dimensional (3D) object within a diagnostic image. A contour of the object is fitted with a 3D mesh comprising splines in at least first and second directions. The splines provide a plurality of editable control points, and the splines in the first direction intersect with the splines in the second direction at intersection points. A position of at least one control point on the 3D mesh is adjusted based on a user input.
Claims21
A method for processing a vessel within a diagnostic image, comprising:
- automatically segmenting, with a computer, a three dimensional (3D) vessel within a diagnostic image;
- automatically fitting a contour of the vessel 3D mesh comprising splines arranged in at least first and second directions substantially surrounding, the vessel, the splines providing a plurality of editable control points, the splines in the first direction intersecting with the splines in the second direction at intersection points based on a likelihood of intersecting with a boundary of the 3D e vessel;
- and adjusting a position of at least one control point on the 3D mesh based on a user input.
A computer for processing computed tomography (CT) diagnostic image data, comprising:
- a user interface;
- and
- a processor coupled to the user interface, the processor configured to:
- automatically segment a three dimensional (3D) vessel within a CT image;
- automatically fit a contour of the vessel with a 3D mesh comprising splines in at least first and second directions, the splines providing a plurality of editable control points, the splines in the first direction intersecting with the splines in the second direction at intersection points based on a likelihood of intersecting with a boundary of the 3D vessel;
- and adjust a position of at least one control point on the 3D mesh based on a user defined intersection point input by an operator using the user interface.
A method for defining a vessel within a diagnostic image, comprising:
- automatically segmenting an elongated vessel within a diagnostic image to detect a contour of the elongated vessel, the elongated vessel having radial and longitudinal directions;
- automatically defining cross-sectional planes within the vessel in the radial direction, each of the cross-sectional planes having radial lines extending beyond the contour of the vessel;
- automatically selecting an optimal intersection point along each of the radial lines to define an intersection of the cross-sectional planes with the contour, the optimal intersection points being based on at least one of minimizing discontinuities between the radial lines located on adjacent cross-sectional planes and minimizing discontinuities between adjacent radial lines located on the same cross-sectional plane;
- and
- automatically fitting the elongated vessel with a 3D mesh having cross-sectional splines and longitudinal splines formed along the contour in circular and longitudinal directions, respectively, the splines being based on at least the optimal intersection points.
Dependencies are inferred from the claim text.