EP Map Dimming via GUI for Clearer Cardiac ROI Analysis
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Solution Overview
Problem
Existing electrophysiological (EP) maps in cardiac procedures are difficult to interpret due to visual overload outside regions of interest (ROIs), which hinders accurate identification of arrhythmogenic areas and decision-making during ablation.
Innovation Solution
A system and method that allows users to adjust the level of dimming and deemphasize the EP map outside ROIs using a graphical user interface (GUI), highlighting the ROIs for focused analysis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If the EP map displays all regions with full visual detail, then complete information is provided, but visual overload occurs outside regions of interest making interpretation difficult
Solution Approach 1:
The patent applies different visual properties to different regions of the EP map. Regions of interest (ROIs) are displayed with full visual detail and color coding, while non-ROI areas are dimmed or grayscale. This local differentiation allows complete information to be preserved in ROIs while reducing visual overload in non-critical areas, directly resolving the contradiction between information completeness and interpretation ease.
Solution Approach 2:
The EP map is segmented into distinct regions: ROIs and non-ROI areas. This segmentation allows the system to apply different visualization strategies to each segment, with full detail applied only where clinically necessary and reduced detail elsewhere, thereby maintaining information integrity in critical areas while improving overall interpretability.
2Loss of information
If multiple EP parameters and tags are displayed simultaneously, then comprehensive data is provided, but visual distractions increase making it hard to focus on arrhythmogenic areas
Solution Approach 1:
Multiple EP parameters and tags are displayed with full visibility and color coding only within ROIs, while being dimmed or suppressed in non-ROI areas. This localized parameter display provides comprehensive data where needed for arrhythmogenic area analysis while eliminating visual distractions in other regions, resolving the contradiction between data comprehensiveness and focus capability.
3Measurement precision
If the EP map uses color coding for different parameters, then data differentiation is improved, but color merging with substrate map occurs reducing clarity
Solution Approach 1:
Color coding for different EP parameters is applied selectively within ROIs where differentiation is most needed for clinical decision-making. Outside ROIs, the substrate map colors are preserved without overlaying parameter colors, preventing color merging and maintaining map clarity. This localized color application strategy resolves the contradiction between data differentiation and map clarity.
Data Source
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AI summary
A system included an input device and a processor. The processor is configured to (i) receive or generate an electrophysiological (EP) map comprising one or more regions of interest (ROIs), (ii) receive from a user, via the input device, a level of deemphasis the EP map required outside the ROIs, (iii) deemphasize the EP map outside the ROIs responsively to the required level, and (iv) display the deemphasized EP map to the user.