Cardiac Analysis Interface for Real-Time Dipole Density Mapping
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Solution Overview
Problem
Current cardiac mapping technologies, both contact and non-contact, face limitations in precision and accuracy due to reliance on potential measurements, which are averaged and smoothed, leading to inaccurate representations of cardiac activity, especially during unstable or irregular arrhythmias, and lack real-time updating capabilities.
Innovation Solution
A system and method for generating a graphical representation of cardiac information by electronically creating an anatomical heart model, determining dipole and surface charge density data sets, and rendering them on a display screen, allowing for precise and real-time visualization of cardiac activity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If potential measurements are used for cardiac mapping, then the measurement process is simplified, but the precision and accuracy of cardiac activity representation deteriorates due to averaging and smoothing effects
Solution Approach 1:
The patent transforms the measurement parameter from potential (voltage) to dipole density and surface charge density. This parameter change enables direct observation of cardiac source activity without the averaging and smoothing effects that plague potential-based mapping, thereby improving measurement precision while maintaining practical measurability through electrostatic field theory and boundary element methods.
2Device complexity
If conventional contact mapping is used, then the system complexity is reduced, but the ability to capture unstable or irregular arrhythmias deteriorates due to time-consuming procedures
Solution Approach 1:
The patent replaces the mechanical contact-based mapping system with a non-contact electrostatic field-based system. By using dipole density and surface charge density measurements from external electrodes, the system eliminates the need for physical catheter contact and time-consuming navigation, enabling rapid capture of unstable arrhythmias while maintaining diagnostic accuracy.
Solution Approach 2:
The patent performs preliminary calculation of dipole density and surface charge density distributions based on measured potential fields. This preliminary transformation of the data allows the system to directly visualize cardiac source activity without requiring time-consuming catheter manipulation during the arrhythmia event, thereby improving reliability for unstable conditions.
3Reliability
If real-time updating of cardiac maps is implemented, then the visualization becomes more useful for unstable arrhythmias, but the computational load and system complexity increases
Solution Approach 1:
The patent replaces complex real-time computational electromagnetism simulations with a simplified electrostatic field model. By assuming quasi-static conditions and using direct boundary element methods to calculate dipole density and surface charge density from measured potentials, the system achieves real-time updating capability with reduced computational burden and manageable system complexity.
Data Source
AI summary
Methods of generating a graphical representation of cardiac information on a display screen are provided. The method comprises: electronically creating or acquiring an anatomical model of the heart including multiple cardiac locations; electronically determining a data set of source information corresponding to cardiac activity at the multiple cardiac locations; electronically rendering the data set of source information in relation to the multiple cardiac locations on the display screen. Systems and devices for providing a graphical representation of cardiac information are also provided.