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US 9,980,653 B2Granted
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AssigneeBiosense Webster (Israel) Ltd.
InventorsYoav Lichtenstein, Fady Massarwa
Life of this patent
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Abstract
A method, including generating a three-dimensional (3D) map as a plurality of points illustrating a characteristic of a 3D heart chamber, the 3D heart chamber having an opening bounded by a perimeter. The method further includes transforming the perimeter into a closed two-dimensional (2D) figure having an interior. The plurality of points illustrating the characteristic are projected onto the interior of the 2D figure so as to generate a 2D map of the characteristic of the 3D heart chamber.
Claims22
A method, comprising:
- inserting a distal end of a catheter into a three-dimensional (3D) heart chamber, wherein the distal end of the catheter comprises at least one sensor;
- measuring a characteristic of the heart chamber with the at least one sensor;
- integrating the measured characteristic with a location of the distal end of the catheter to create a plurality of points;
- generating a 3D mesh from the plurality of points, the 3D mesh formed from a plurality of line segments and junctions having a connectivity, the 3D mesh including an opening defined by a closed perimeter, the opening in the 3D mesh corresponding to an anatomical opening in a heart;
- generating a 3D map from the 3D mesh, the 3D map illustrating the characteristic, measured by the catheter, of a 3D heart chamber, the 3D map including an opening corresponding to the opening in the 3D mesh, the opening in the 3D map having the same perimeter as the perimeter of the corresponding opening in the 3D mesh;
- generating a two-dimensional (2D) mesh by mapping each point on the perimeter of the opening on the 3D mesh to a corresponding point on a 2D closed boundary, the 2D closed boundary having a perimeter corresponding to the perimeter of the corresponding opening on the 3D mesh, the 2D boundary being larger than the corresponding opening on the 3D mesh;
- mapping each of the line segments and junctions of the 3D mesh into an interior of the 2D boundary of the 2D mesh while maintaining the connectivity of the 3D mesh in the 2D mesh;
- and
- generating, from the 2D mesh, a 2D map corresponding to the boundary and interior of the 2D mesh so as to generate a 2D map of the characteristic of the 3D heart chamber.
6 more elements
An apparatus, comprising:
- a processor;
- and
- a non-transitory computer readable medium storing a plurality of instructions, which when executed, cause the processor to:
- integrate a measured characteristic of a three dimensional (3D) heart chamber having an anatomical opening, the characteristic being measured by a distal end of a catheter inserted into the 3D heart chamber, the distal end having at least one sensor,
- generate a 3D mesh from the plurality of points, the 3D mesh formed from a plurality of line segments and junctions having a connectivity, the 3D mesh including an opening defined by a closed perimeter, the opening in the 3D mesh corresponding to the anatomical opening in a heart;
- generate a 3D map from the 3D mesh, the 3D map illustrating the characteristic, measured by the distal end of the catheter in the 3D heart chamber, the 3D map including an opening corresponding to the opening in the 3D mesh, the opening in the 3D map having the same perimeter as the perimeter of the corresponding opening in the 3D mesh;
- generate a two-dimensional (2D) mesh by mapping each point on the perimeter of the opening on the 3D mesh to a corresponding point on a 2D closed, the 2D closed boundary having a perimeter corresponding to the perimeter of the corresponding opening on the 3D mesh, the 2D boundary being larger than the corresponding opening on the 3D mesh;
- and
- map each of the line segments and junctions of the 3D mesh into an interior of the 2D boundary of the 2D mesh while maintaining the connectivity of the 3D mesh in the 2D mesh;
- and
- generate, from the 2D mesh, a 2D map corresponding to the boundary and interior of the 2D mesh so as to generate a 2D map of the characteristic of the 3D heart chamber.
8 more elements
Dependencies are inferred from the claim text.