3D Cardiac Mapping Integrating Time and Frequency Domain Data
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Solution Overview
Problem
Current cardiac electrophysiology mapping systems lack the capability to provide comprehensive diagnostic data using both time-domain and frequency-domain representations of electrophysiology data, limiting their ability to accurately visualize and analyze complex fractionated electrograms and their spatial distribution within the heart.
Innovation Solution
A system that creates a three-dimensional map of electrical activity in the heart, incorporating time-domain and frequency-domain data, including complex fractionated electrogram information, to provide detailed spatial and temporal analysis, allowing for the identification of discrete electrical activations and quantification of electrogram parameters such as standard deviation and mean intervals, which are presented on a heart model using colors, shades, or grayscales.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional two-dimensional electrophysiology mapping is used, then the system is simple to operate, but it cannot provide comprehensive spatial and temporal analysis of complex fractionated electrograms
Solution Approach 1:
The patent transitions from traditional two-dimensional electrophysiology mapping to three-dimensional mapping, adding a spatial dimension to the visualization. This allows comprehensive spatial and temporal analysis of complex fractionated electrograms by mapping electrogram parameters (amplitude, duration, fractionation) onto a three-dimensional heart model, enabling clinicians to view electrical activity from multiple angles and identify arrhythmia sources more accurately.
2Loss of information
If only time-domain electrogram data is analyzed, then the analysis is straightforward, but it lacks the comprehensive diagnostic capability provided by frequency-domain representation
Solution Approach 1:
The patent combines both time-domain and frequency-domain electrogram data representations in a unified three-dimensional mapping system. Time-domain parameters (amplitude, duration, morphology) and frequency-domain characteristics are integrated and displayed simultaneously on the three-dimensional heart model, providing comprehensive diagnostic information without requiring separate analysis systems.
3Measurement precision
If complex fractionated electrogram parameters are mapped in three-dimensions, then diagnostic accuracy is improved, but the difficulty of detecting and measuring increases
Solution Approach 1:
The patent employs color-coded visualization to represent different electrogram parameters on the three-dimensional heart model. Different colors indicate varying degrees of fractionation, amplitude levels, and duration characteristics, making it easier for clinicians to detect and measure complex electrogram features. The color mapping provides an intuitive visual interface that simplifies the interpretation of complex fractionated electrograms while maintaining high measurement precision.
Data Source
AI summary
A system for presenting information representative of patient electrophysiological activity, such as complex fractionated electrogram information, includes at least one electrode to measure electrogram information from the heart surface, at least one processor coupled to the at least one electrode to receive the electrogram information and measure a location of the at least one electrode within the heart, and a presentation device to present the electrogram information as associated with the location at which it was measured on a model of the patient's heart. A memory may also be provided in which to store the associated electrogram information and measured location. Data may be analyzed using both time-domain and frequency-domain information to create a three-dimensional map. The map displays the data as colors, shades of color, and/or grayscales, and may further utilize contour lines, such as isochrones, to present the information.