System and method for complex geometry modeling of anatomy using multiple surface models
First Claim
1. A method of creating a surface model of an anatomy, comprising:
- obtaining a first plurality of location points defining a first section of the anatomy, said first plurality of location points having a first mean center point from which a line of sight may be drawn to every location point of the first plurality of location points;
generating a first three-dimensional surface model of the first section of the anatomy using the first plurality of location points;
obtaining a second plurality of location points defining a second section of the anatomy, said second plurality of location points having a second mean center point from which a line of sight may be drawn to every location point of the second plurality of location points, wherein said second section of the anatomy includes at least an area of the anatomy that is not included within the first section of the anatomy, and wherein at least one location point of the second plurality of location points is not within a line of sight of the first mean center point;
generating a second three-dimensional surface model of the second section of the anatomy using the second plurality of location points; and
combining the first three-dimensional surface model with the second three-dimensional surface model to create a composite three-dimensional surface model for the first and second sections of the anatomy.
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Accused Products
Abstract
Disclosed herein are methods and systems for creating a complex model of the human anatomy. The anatomy may be modeled using multiple geometries. Generally, a plurality of line-of-sight models may be combined into a composite model. Multiple clouds of points may be used to create surface models which may then be merged into a common volume. The resulting composite model may include portions that are not within a line of sight of a mean center point of the composite model. The surface models may be modeled using polygons, including for example, triangles. Disclosed herein are also ways in which electrophysiology data and/or other information may be mapped from a measurement point to a point on the composite model.
171 Citations
22 Claims
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1. A method of creating a surface model of an anatomy, comprising:
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obtaining a first plurality of location points defining a first section of the anatomy, said first plurality of location points having a first mean center point from which a line of sight may be drawn to every location point of the first plurality of location points; generating a first three-dimensional surface model of the first section of the anatomy using the first plurality of location points; obtaining a second plurality of location points defining a second section of the anatomy, said second plurality of location points having a second mean center point from which a line of sight may be drawn to every location point of the second plurality of location points, wherein said second section of the anatomy includes at least an area of the anatomy that is not included within the first section of the anatomy, and wherein at least one location point of the second plurality of location points is not within a line of sight of the first mean center point; generating a second three-dimensional surface model of the second section of the anatomy using the second plurality of location points; and combining the first three-dimensional surface model with the second three-dimensional surface model to create a composite three-dimensional surface model for the first and second sections of the anatomy. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A system for presenting complex cardiac geometries to a physician comprising:
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a modeling processor to generate a first three-dimensional model of a first portion of a heart comprising position information for a plurality of location points within the first portion of the heart and a second three-dimensional model of a second portion of the heart comprising position information for a plurality of location points within the second portion of the heart, wherein the second portion of the heart includes at least one area of the heart that is not included in the first portion of the heart; and a geometry processor to combine the first three-dimensional model with the second three-dimensional model to create a combined geometric model for the first and second portions of the heart, wherein at least one point on a surface of said combined geometric model is not within a line of sight of a mean center point of the combined geometric model. - View Dependent Claims (14, 15, 16, 17)
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18. A method of creating a three-dimensional model of an anatomy, comprising:
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obtaining a first three-dimensional model of a first portion of an anatomy, said first three-dimensional model comprising position information for a plurality of location points within the first portion of the anatomy; obtaining a second three-dimensional model of a second portion of the anatomy, said second three-dimensional model comprising position information for a plurality of location points within the second portion of the anatomy, wherein at least one of the first and second portions of the anatomy includes at least one area of the anatomy that is not included in the other of the first and second portions of the anatomy; wherein at least one of the first three-dimensional model and the second three-dimensional model is a line-of-sight geometry for which the following condition is met;
every portion of the three-dimensional model is visible from a mean center point of the three dimensional model; andcombining the first three-dimensional model with the second three-dimensional model to create a composite geometric model for the first and second portions of the anatomy, said composite geometric model having a mean center point and at least one portion not in a line of sight from the mean center point. - View Dependent Claims (19, 20, 21, 22)
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Specification