Multi-Electrode Cardiac Mapping for Depth-Resolved Signal Analysis
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Solution Overview
Problem
Conventional electro-anatomical mapping techniques fail to discriminate between different depths of cardiac signals within cardiac tissue, leading to inaccurate representations of electrical activity and scar tissue.
Innovation Solution
A multi-electrode catheter with electrodes on both sides, one in contact with cardiac tissue and the other in contact with blood or away from tissue, analyzes electrical signals based on distances between electrodes to generate multiple electro-anatomical maps depicting electrical activity or scar tissue at varying depths.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional electro-anatomical mapping techniques are used, then the mapping process is simple, but the depth discrimination capability is lost
Solution Approach 1:
The catheter is segmented into multiple electrode arrays positioned at different depths within the tissue wall. Each electrode array independently measures electrical signals from a specific depth layer, enabling the system to discriminate and map electrical activity at multiple depths simultaneously without requiring complex post-processing or multiple separate measurement procedures.
2Loss of information
If multi-polar signals from multiple depths are collected, then the information accuracy improves, but the signal processing complexity increases
Solution Approach 1:
The patent combines electrical signals from multiple electrode arrays positioned at different depths through signal averaging and integration. By merging these multi-depth signals, the system enhances the signal-to-noise ratio and improves information accuracy about the electrical activity at each depth layer, while the integrated processing approach manages the complexity through unified algorithms.
Data Source
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AI summary
This disclosure relates to electro-anatomical mappings of cardiac tissue at different depths using a multi-electrode catheter. A multi-electrode catheter within a heart of a patient has a first plurality of electrodes on a first side and a second plurality of electrodes on a second side, wherein the first side is proximate to cardiac tissue at a first location and the second side is facing away from the cardiac tissue. Electrical activity is received from at least one electrode on the first side and the at least one electrode on the second side, and a signal analysis is performed thereon based at least in part on distances between electrodes on different sides of the multi-electrode catheter. The process is repeated for further locations of cardiac tissue in the heart, and an electro-anatomical map of the heart depicting electrical activity or scar tissue is generated based on the signal analysis.