Cardiac Mapping 3D to 2D Projection
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Solution Overview
Problem
Displaying and interpreting cardiac electrophysiology data from a beating heart is challenging due to its dynamic and three-dimensional nature, making it difficult to visualize and correlate electrical potentials with their locations in real-time.
Innovation Solution
A method that converts three-dimensional cardiac surface data into a two-dimensional map, allowing for simultaneous visualization of time-varying electrical potentials by formulating a one-to-one correspondence between 3D locations and a 2D coordinate frame, with graphic representations such as varying bars or colors corresponding to potential values, enabling easy correlation and visualization without the need for continuous rotation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If three-dimensional cardiac surface data is displayed directly, then spatial accuracy is improved, but visualization complexity and ease of operation deteriorate
Solution Approach 1:
The patent transforms three-dimensional cardiac surface data into a two-dimensional map representation. This dimensionality reduction allows the entire cardiac surface to be visualized on a single plane, making it easier to view all locations simultaneously without requiring continuous rotation or complex navigation through 3D space, while preserving the spatial relationships through careful mapping of coordinates.
2Shape
If three-dimensional cardiac surface data is displayed directly, then spatial relationships are improved, but ease of operation worsens due to need for continuous rotation
Solution Approach 1:
By projecting the 3D cardiac surface onto a 2D plane, the patent eliminates the need for continuous rotation to view different aspects of the heart. The 2D map preserves spatial relationships through coordinated mapping, allowing all regions to be viewed simultaneously in a single static view.
Solution Approach 2:
The patent creates a two-dimensional copy or representation of the three-dimensional cardiac surface. This 2D map copy maintains the essential spatial relationships and topological connections of the 3D surface while being much easier to visualize and interpret on a display screen without requiring rotational manipulation.
3Loss of information
If time-varying electrical potentials are displayed at multiple locations, then information completeness is improved, but display clarity and ease of operation worsen
Solution Approach 1:
The patent merges multiple pieces of information into a unified 2D map display. It combines the spatial location data with time-varying electrical potential data in a single integrated visualization, where each location on the map shows its corresponding electrical potentials over time. This merging allows complete information to be displayed without overwhelming the viewer, as all data is presented in a coordinated, spatially-accurate format.
Data Source
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AI summary
A method consisting of formulating a one-to-one correspondence between locations on a three-dimensional surface of a body cavity and coordinates in a two-dimensional coordinate frame representative of the locations. The method also includes recording respective time-varying electrical potentials at the locations. The method further includes displaying a map of the two-dimensional coordinate frame, and presenting respective graphic representations of the time-varying electrical potentials at positions in the map corresponding to the coordinates of the locations.