Basket Catheter 2D to 3D Rotor Localization
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Solution Overview
Problem
Current methods for translating two-dimensional (2D) maps of cardiac electrical activity into three-dimensional (3D) models of the heart anatomy are inadequate for accurately locating arrhythmic rotors, hindering precise ablation procedures for arrhythmia treatment.
Innovation Solution
A system and method that utilize a basket catheter to receive electrical measurements, generate a 2D map grid, and then create a 3D derived model of the heart anatomy, allowing for the accurate display of the arrhythmic rotor's location, enabling precise navigation for ablation catheter placement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If 2D mapping is used to locate arrhythmic rotors, then the mapping process is simpler and faster, but the accuracy of rotor localization is insufficient
Solution Approach 1:
The patent applies dimensionality change by translating 2D rotor locations from electroanatomic maps into 3D positions within the heart chamber using a basket catheter framework. The system converts 2D electrode measurements into 3D spatial coordinates by mapping electrode positions on the catheter spines to corresponding anatomical locations, enabling accurate 3D rotor localization while maintaining the simplicity of 2D mapping acquisition.
2Manufacturing precision
If 3D models are generated for precise ablation, then treatment accuracy is improved, but procedural time and complexity increase
Solution Approach 1:
The system performs preliminary action by pre-generating a 3D model of the heart chamber and pre-mapping the basket catheter framework onto it before the ablation procedure. This allows the 3D anatomical model and electrode positions to be prepared in advance, so that during the actual ablation, the system can quickly translate 2D rotor locations to 3D positions without time-consuming real-time calculations, thus reducing procedural time while maintaining precision.
3Productivity
If electrode positions are used to create 2D maps, then data acquisition is faster, but translation to 3D anatomy is inaccurate
Solution Approach 1:
The patent uses the basket catheter framework as an intermediary between 2D electrode measurements and 3D anatomical mapping. The catheter's known geometric structure with spines and electrodes serves as a mediator that links electrical measurements to spatial positions. By using the catheter's pre-defined 3D geometry as a reference framework, the system can accurately translate 2D rotor locations into 3D anatomical coordinates without requiring complex real-time anatomical scanning, thus maintaining both speed and accuracy.
Data Source
AI summary
A method and system for translating two dimensional (2D) mapping into a three dimensional (3D) derived model. The method and system receive electrical measurements from a plurality of electrodes of the basket catheter of an anatomical region of interest. The method and system receive a 2D map grid based on the electrodes and corresponding spines of the basket catheter. The 2D map grid includes a location of at least one focus of an arrhythmic rotor. Further, the method and system generate a 3D derived model of the anatomical region of interest that includes the basket catheter and display a 3D location of the focus the arrhythmic rotor on the 3D derived model based on the 2D map grid.