Dynamic Electrogram Display for Cardiac Mapping
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Solution Overview
Problem
Conventional cardiac mapping techniques require manual inspection of numerous electrogram representations, which is time-consuming and impractical due to the large number of points on the map, making it difficult to assess tissue pathology and its neighbors effectively.
Innovation Solution
A system that dynamically and concurrently displays multiple electrogram representations spatially corresponding to user-selected areas on a cardiac map, allowing for simultaneous visualization and manipulation of these representations to update dynamically, facilitating easier assessment of cardiac tissue pathology.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional manual inspection of individual electrograms is used, then detailed assessment of each electrogram is possible, but the review process becomes time-consuming and impractical due to the large number of points
Solution Approach 1:
The system segments the large set of electrograms into multiple displayable groups or pages, allowing the operator to systematically review electrograms in manageable portions rather than being overwhelmed by the complete set, thus maintaining assessment accuracy while reducing overall review time
Solution Approach 2:
The system creates visual copies of electrogram data through multiple representation formats (waveform displays, parameter tables, color-coded map annotations) that can be quickly scanned and compared, enabling rapid assessment without requiring detailed manual inspection of each individual electrogram
2Measurement precision
If individual electrograms are inspected one at a time, then detailed characteristics can be assessed, but the spatial context and relationship to neighboring points are lost
Solution Approach 1:
The system adds a spatial dimension to the electrogram review process by displaying multiple electrograms simultaneously in a structured layout that preserves their anatomical relationships, and by providing color-coded or annotated representations on the 3D cardiac map that indicate the location and characteristics of each electrogram relative to its neighbors
Solution Approach 2:
The system provides multiple viewing modes and representation formats that can be switched as needed, allowing the operator to view electrograms individually for detailed assessment or simultaneously for spatial context, with each mode serving different assessment needs
3Loss of information
If all electrograms are displayed simultaneously in a single view, then comprehensive overview is achieved, but the complexity of the display becomes overwhelming and difficult to interpret
Solution Approach 1:
The display system segments the electrogram information into multiple organized groups, pages, or hierarchical levels, allowing comprehensive information to be presented in a structured manner that reduces visual complexity while maintaining completeness of data
Solution Approach 2:
The system applies different display characteristics to different regions or groups of electrograms based on their spatial location, electrical characteristics, or clinical significance, allowing important features to be highlighted while less critical information is displayed more succinctly
Data Source
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AI summary
A system includes a display device configured to present a cardiac map; and a processing unit configured to: receive electrical signals; generate the cardiac map; and facilitate display of the cardiac map, where each electrical signal corresponds to a map location. The processing unit is also configured to receive a user selection of a selected portion of the cardiac map, the selected portion including a set of map locations, each of the set of map locations corresponding to an electrical signal of a set of signals that is a subset of the received electrical signals. The set of map locations has a first spatial arrangement and the processing unit is configured to facilitate display of a set of electrical signal representations, each representation corresponding to one of the set of electrical signals, the set of electrical signal representations having a second spatial arrangement, which corresponds to the first spatial arrangement.