Electroanatomical Map Multiple-Activation Area Visualization
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Solution Overview
Problem
Current electroanatomical mapping techniques fail to intuitively display time differences between multiple local activations on the heart's surface, making it difficult for physicians to locate pathological lines of block or unintended gaps in ablation lines effectively.
Innovation Solution
A method and apparatus that display multiple-activation areas on an electroanatomical map using color or overlaid indicators to represent time differences between local activations, allowing physicians to visualize and identify these areas without examining raw ECG signals, utilizing functions that map time differences to display properties such as color or size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If traditional electroanatomical mapping techniques are used to display heart surface activation, then the basic activation times can be shown, but the time differences between multiple local activations cannot be intuitively displayed
Solution Approach 1:
The patent applies color changes to represent time differences between multiple local activations. Different colors or color intensities are assigned to indicate different time difference values, allowing physicians to intuitively visualize activation timing variations across the heart surface without complex additional displays or raw signal examination.
2Measurement precision
If physicians examine raw ECG signals to identify multiple activation areas, then accurate time difference data can be obtained, but the process is time-consuming and difficult
Solution Approach 1:
The system performs preliminary processing of ECG signals to pre-calculate and store time difference data between multiple activations. This preprocessing allows the mapping display to directly show pre-computed time difference information without requiring physicians to manually analyze raw signals during the diagnostic process, thus maintaining measurement precision while significantly reducing analysis time.
3Measurement precision
If detailed ECG signal analysis is performed to locate pathological lines of block, then accurate localization can be achieved, but the complexity and time required increase significantly
Solution Approach 1:
The patent uses color-coded display of time difference data on the electroanatomical map to highlight areas with abnormal activation patterns. Pathological lines of block and unintended gaps in ablation lines are visually distinguished through color variations, enabling accurate localization without requiring complex real-time signal analysis during the procedure.
Data Source
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AI summary
A method for displaying electroanatomical information is provided. The method comprises identifying at least one multiple-activation area of a surface of a heart, at which multiple-activation area were recorded at least two different local activations during a single cardiac cycle of the heart. The multiple-activation area is displayed, on an electroanatomical map of the surface of the heart, in a manner that indicates a time difference between respective times of the two local activations. Other embodiments are also described.