Real-Time Electrophysiology Mapping via Selective Data Filtering
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Solution Overview
Problem
Current electrophysiology mapping technologies face challenges in providing real-time data during complex cardiac diagnostic and therapeutic procedures, necessitating rapid and accurate generation and display of electrophysiology maps to aid practitioners.
Innovation Solution
A method and system for generating a real-time electrophysiology map of a patient's heart using intracardiac electrodes, involving the display of a heart surface model, reception of electrophysiology data points with location information, and graphical representation of data on the model when certain criteria are met, such as proximity to the heart surface, with options for saving and updating data points.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If real-time electrophysiology data is displayed continuously, then the information availability to practitioners is improved, but the data processing complexity and computational load increase
Solution Approach 1:
The patent extracts and displays only the most relevant electrophysiology data points that meet specific inclusion criteria (such as proximity to heart surface, contact force thresholds, and electrical coupling quality) while filtering out redundant information. This selective extraction approach provides practitioners with essential information without processing and displaying all raw data, thereby reducing computational complexity while maintaining information availability.
Solution Approach 2:
The patent applies different display and processing qualities to different regions of the electrophysiology map based on local characteristics. Data points meeting specific criteria (e.g., within a threshold distance from the heart surface, adequate contact force) are displayed with high quality and detail, while other points are processed differently or excluded. This local quality approach optimizes information presentation without uniformly increasing processing complexity across all data.
2Loss of information
If multiple electrophysiology data points are processed and displayed simultaneously, then the comprehensiveness of the electrophysiology map is improved, but the real-time processing capability deteriorates
Solution Approach 1:
The patent segments the electrophysiology data processing into distinct stages: data acquisition from multiple electrodes, preliminary filtering based on inclusion criteria, distance calculation to heart surface, contact force evaluation, and selective display. This segmentation allows the system to handle multiple data points efficiently by processing them through standardized stages, maintaining comprehensiveness while improving real-time processing capability through modular operation.
Solution Approach 2:
The patent processes all incoming electrophysiology data points through the filtering and evaluation pipeline (excessive action), but only displays and retains those meeting specific inclusion criteria (partial action). This approach ensures comprehensive data collection for potential analysis while limiting the displayed information to manageable quantities that maintain real-time processing capability and provide meaningful clinical information.
3Loss of information
If electrophysiology data points are saved for later analysis, then the data completeness is improved, but the storage requirements and data management complexity increase
Solution Approach 1:
The patent implements a selective saving mechanism where electrophysiology data points meeting inclusion criteria are saved to a persistent data structure for later analysis and map updates, while points not meeting criteria are discarded. This approach maintains data completeness for relevant measurements without storing unnecessary information, thereby balancing data completeness with manageable storage requirements and reduced data management complexity.
Data Source
AI summary
A method of generating a real-time electrophysiology map, such as a cardiac electrophysiology map, includes displaying a cardiac surface model and receiving a plurality of electrophysiology data points (e.g., using a plurality of intracardiac electrodes). The electrophysiology data from the received electrophysiology data points can be displayed and updated on the cardiac surface model in real-time when it satisfies a preset inclusion criteria, such as a projection distance criterion (e.g., the electrophysiology data point is within a preset distance of the cardiac surface model), a contact force criterion (e.g., the intracardiac catheter is exerting at least a preset contact force on the tissue surface), and/or an electrical coupling criterion (e.g., the electrode-tissue electrical coupling exceeds a preset threshold). New electrophysiology data points can be received when a triggering event, such as a point in the cardiac cycle, occurs, or according to a preset timer interval.