3D cardiac visualization system
A system is provided for generating and displaying a sequence of three-dimensional (3D) graphics that illustrate motion of the heart over a cardiac cycle. The system generates a start heart wall mesh and an end heart wall mesh that represent a start geometry and an end geometry of a heart wall derived from a start 3D image and an end 3D image. The system then generates one or more an intermediate heart wall 3D meshes based on an intermediate geometry of the heart wall. An intermediate geometry is interpolated based on the start geometry and the end geometry factoring a start time of a start heart wall mesh, an end time of the end heart wall mesh, and an intermediate time for the intermediate heart wall mesh. The system then displays in sequence representations the heart wall 3D meshes to illustrate the motion.
1. One or more computing systems comprising:
one or more computer-readable storage mediums that store computer-executable instructions for controlling the one or more computing systems to:
access a first heart wall three-dimensional (3D) mesh that represents a first geometry of a heart wall derived from a first heart wall 3D image of a heart and that is associated with a first indicator;
generate a second heart wall 3D mesh that represents a second geometry of the heart wall that is based on the first geometry, a second indicator, and a first volume associated with the first heart wall 3D mesh and a second volume associated with the second heart wall 3D mesh; and
display in sequence representations the first heart wall 3D mesh and the second 3D heart wall mesh;
wherein the second heart wall 3D mesh is generated further based on a third heart wall 3D mesh that represents a third geometry of the heart wall derived from a third 3D image of the heart and that is associated with a third indicator and
one or more processors for controlling the one or more computing systems to execute one or more of the computer-executable instructions.
2. The one or more computing systems of claim 1 wherein the first indicator is a first time with a cardiac cycle and the second indicator is a second time within the cardiac cycle, and wherein the second volume is derived from a mapping of time within a cardiac cycle to chamber volume.
3. The one or more computing systems of claim 1 wherein a plurality of second heart wall 3D meshes are generated for different second indicators and the computer-executable instructions further include instructions to display in the sequence representations of the plurality of second heart wall 3D meshes.
4. The one or more computing systems of claim 1 wherein first indicator represents a first time within a cardiac cycle, the second indicator represents a second time within the cardiac cycle, and the third indicator represents a third time within the cardiac cycle and wherein the second time is in between the first time and the third time.
5. The one or more computing systems of claim 1 wherein first indicator represents a first time within a cardiac cycle, the second indicator represents a second time within the cardiac cycle, and the third indicator represents a third time within the cardiac cycle and wherein the second time is not between the first time and the third time.
6. The one or more computing systems of claim 1 wherein the first indicator represents a first time within a cardiac cycle, the second indicator represents a second time within the cardiac cycle, and the third indicator represents a third time within the cardiac cycle and wherein the second time is in between the first time and the third time and wherein the computer-executable instructions further include instructions to generate plurality of second heart wall 3D meshes for different second times and to display in the sequence representations of the plurality of second heart wall 3D meshes.
7. The one or more computing systems of claim 6 wherein the computer-executable instructions include instructions that display an electrocardiogram of a cardiac cycle.
8. The one or more computing systems of claim 7 wherein the first 3D image and the third 3D images are collected during the cardiac cycle.
9. The one or more computing systems of claim 8 wherein the computer-executable instructions include instructions to display a cycle time indicator in association with the displayed electrocardiogram to indicate the times associated with the 3D meshes as their representations are displayed.
10. The one or more computing systems of claim 1 wherein each heart wall 3D mesh includes vertices corresponding to an inner layer and an outer layer of the heart wall.
11. The one or more computing systems of claim 10 wherein the displayed representations provide a slice view that illustrates the inner layer, a myocardial layer, and the outer layer of a heart wall.
12. One or more computing systems comprising:
one or more computer-readable storage mediums that store computer-executable instructions for controlling the one or more computing systems to:
generate a start heart wall 3D mesh representing a start geometry of a heart wall, the start heart wall 3D mesh having vertices, one or more of the vertices are each associated with a start characteristic value of a characteristic;
generate an end heart wall 3D mesh representing an end geometry of the heart wall, the end heart wall 3D mesh having vertices, one or more of the vertices are each associated with an end characteristic value;
generate intermediate heart wall 3D meshes that each represents an intermediate geometry of the heart wall, each intermediate heart wall 3D mesh having vertices, one or more of the vertices of a heart wall 3D mesh is each associated with an intermediate characteristic value; and
display 3D graphics derived from the heart wall 3D meshes wherein the 3D graphics are displayed in sequence based on a time associated with each heart wall 3D mesh;
wherein the start heart wall 3D mesh and the end heart wall 3D mesh are derived from a simulation of electrical activity of a heart, wherein the simulation is based on a source location of an arrhythmia that is associated with a simulated heart wall 3D mesh, wherein the source location is associated with corresponding vertices of the start heart wall 3D mesh, the intermediate heart wall 3D meshes, and the end heart wall 3D mesh, and wherein the source location is indicated on the displayed 3D graphics and
one or more processors for controlling the one or more computing systems to execute one or more of the computer-executable instructions.
13. One or more computing systems comprising:
one or more computer-readable storage mediums that store computer-executable instructions for controlling the one or more computing systems to:
generate a start heart wall 3D mesh representing a start geometry of a heart wall, the start heart wall 3D mesh having vertices, one or more of the vertices are each associated with a start characteristic value of a characteristic;
generate an end heart wall 3D mesh representing an end geometry of the heart wall, the end heart wall 3D mesh having vertices, one or more of the vertices are each associated with an end characteristic value;
generate intermediate heart wall 3D meshes that each represents an intermediate geometry of the heart wall, each intermediate heart wall 3D mesh having vertices, one or more of the vertices of a heart wall 3D mesh is each associated with an intermediate characteristic value; and
display 3D graphics derived from the heart wall 3D meshes wherein the 3D graphics are displayed in sequence based on a time associated with each heart wall 3D mesh;
wherein the computer-executable instructions further include instructions to receive a user indication to rotate the display of the heart wall 3D meshes around a specified axis of rotation and
one or more processors for controlling the one or more computing systems to execute one or more of the computer-executable instructions.
14. The one or more computing systems of claim 13 wherein the intermediate heart wall 3D meshes are derived from the start heart wall 3D mesh and the end heart wall 3D mesh.
15. The one or more computing systems of claim 13 wherein geometries of the heart wall 3D meshes are based on a simulation of motion of the heart wall.
16. The one or more computing systems of claim 15 wherein the simulation simulates electrical activity of a heart.
17. The one or more computing systems of claim 13 wherein the computer-executable instructions further include instructions to access a collection of simulation data derived from simulations of electrical activity of a heart, the simulated data for a simulation including simulated heart wall 3D meshes representing geometries of a heart wall during the simulation of electrical activity of a heart and including a simulated electrocardiogram derived from the simulated electrical activity and the start heart wall 3D mesh, the intermediate heart wall 3D meshes, and the end heart wall 3D mesh are simulated heart wall 3D meshes.
18. The one or more computing systems of claim 17 wherein the computer-executable instructions further include instructions to access a patient electrocardiogram and identify a simulated electrocardiogram derived from a simulation is similar to the patient electrocardiogram based on a similarity criterion and wherein the start heart wall 3D mesh, the intermediate 3D heart wall meshes, and the end heart wall 3D mesh are based on the simulated heart wall 3D meshes of the identified simulated simulation.
19. One or more computing systems comprising:
one or more computer-readable storage mediums that store computer-executable instructions for controlling the one or more computing systems to:
generate a start heart wall 3D mesh representing a start geometry of a heart wall, the start heart wall 3D mesh having vertices, one or more of the vertices are each associated with a start characteristic value of a characteristic;
generate an end heart wall 3D mesh representing an end geometry of the heart wall, the end heart wall 3D mesh having vertices, one or more of the vertices are each associated with an end characteristic value;
generate intermediate heart wall 3D meshes that each represents an intermediate geometry of the heart wall, each intermediate heart wall 3D mesh having vertices, one or more of the vertices of a heart wall 3D mesh is each associated with an intermediate characteristic value; and
display 3D graphics derived from the heart wall 3D meshes wherein the 3D graphics are displayed in sequence based on a time associated with each heart wall 3D mesh;
wherein the computer-executable instructions further include instructions to display indications of the characteristic values of one or more characteristics associated with the 3D meshes, the characteristics including one or more of source location of an arrhythmia source, heart wall thickness, heart wall strain, heart wall strain rate, heart wall conduction velocity, tissue state, voltage, and electrical activation timing and
one or more processors for controlling the one or more computing systems to execute one or more of the computer-executable instructions.