Electroanatomical Map Region-of-Interest Highlighting
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Solution Overview
Problem
Conventional cardiac mapping systems are inefficient due to the manual inspection of large volumes of electrograms, lack of user-driven focus, and reliance on operator-dependent methods, leading to increased examination time and cost, and poor data-driven focus.
Innovation Solution
A cardiac mapping system that processes sensed cardiac electrical signals to present a clear representation of a region of interest (ROI) on an electroanatomical map, using user-driven and algorithm-driven highlighting methods that are persistent across view angles and zoom levels, and include bordered, highlighted overlays on a de-saturated map, facilitating multiple distinct ROIs without obstructing other information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual inspection of electrograms is performed, then diagnostic accuracy can be maintained, but examination time and cost increase significantly
Solution Approach 1:
The system enables automatic electrogram analysis through algorithm-driven processing that autonomously categorizes and interprets electrograms without requiring manual clinician review, while still providing accurate diagnostic information through automated feature extraction and pattern recognition
Solution Approach 2:
The patent replaces the manual mechanical inspection process with automated computational algorithms that process electrograms, using computer-based signal analysis, machine learning models, and automated reporting systems to substitute human visual inspection with electronic processing
2Area of stationary object
If entire heart chamber maps are generated, then comprehensive coverage is achieved, but clinical focus on specific regions is diluted
Solution Approach 1:
The system applies different display qualities and levels of detail to different regions of the map, with enhanced visualization and detailed electrogram data presented for clinically relevant regions of interest while using summarized or reduced visualization for less critical areas, allowing clinicians to focus attention where needed
Solution Approach 2:
The patent divides the comprehensive heart chamber map into distinct segments or regions of interest, allowing separate processing, analysis, and presentation of different anatomical areas, enabling clinicians to focus on specific segments such as isthmi, scars, or lines of block without being overwhelmed by the entire chamber data
3Quantity of substance
If more electrograms are captured for comprehensive mapping, then data completeness improves, but data processing complexity and examination time increase
Solution Approach 1:
The system extracts and isolates only the most relevant features and characteristics from the large volume of captured electrograms, using automated feature detection, signal processing techniques, and filtering algorithms to extract critical diagnostic information while discarding redundant or less important data
Solution Approach 2:
The patent transforms the raw electrogram data by changing parameters such as filtering frequencies, sampling rates, and representation formats, converting complex time-domain signals into simplified frequency-domain representations or derived parameters that are easier to process and interpret while preserving essential diagnostic information
Data Source
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AI summary
A system for facilitating display of cardiac information includes a display device configured to present a cardiac map; and a processing unit configured to: receive electrical signals and indications of measurement locations corresponding to the electrical signals; generate, based on the electrical signals, the cardiac map, which includes annotations representing cardiac signal features; and determine a set of interesting cardiac signal features. The processing unit also may determine, based on the set of interesting cardiac signal features, a region of interest; and facilitate display, via the display device, of the cardiac map and a representation of the region of interest. The representation of the region of interest includes a first display parameter value that is different from a second display parameter value, where the second display parameter value is associated with at least one cardiac signal feature that is not included within the region of interest.