Catheter Electrode Position Tracking with GPU Bezier Mapping
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Solution Overview
Problem
Existing cardiac treatment techniques face challenges in obtaining detailed mappings of cardiac tissue, chambers, veins, arteries, and electrical pathways, which are crucial for accurate diagnosis and treatment of cardiac conditions such as arrhythmias.
Innovation Solution
A system utilizing a catheter with flexible splines and electrodes, combined with a geometry shader in a graphics processing unit, calculates Bezier curve control points to determine electrode positions, enabling precise mapping and ablation procedures by estimating spline shapes and positions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional mapping techniques are used to obtain cardiac tissue mappings, then the mapping process can be performed, but the accuracy and detail of the cardiac tissue, chambers, veins, arteries, and electrical pathways mapping is insufficient
Solution Approach 1:
The patent replaces traditional mechanical tracking systems with a graphics processing unit (GPU) based computational system. The GPU executes shader programs to calculate electrode positions and generate 3D representations, substituting complex mechanical tracking mechanisms with computational mathematics and graphics processing, thereby improving mapping precision while managing system complexity through software-based solutions
Solution Approach 2:
The patent transforms physical electrode position data into mathematical representations using Bezier curves and control points. By changing the parameter representation from direct physical coordinates to curve-based mathematical models, the system achieves higher mapping accuracy through sophisticated geometric calculations while maintaining computational efficiency
2Measurement precision
If detailed 3D representations of electrode positions are generated using GPU-based Bezier curve calculations, then mapping accuracy is improved, but computational complexity and processing requirements increase
Solution Approach 1:
The patent replaces traditional CPU-based computational approaches with GPU-based parallel processing. By leveraging the graphics processing unit's architecture designed for parallel computations, the system efficiently handles the mathematically intensive Bezier curve calculations and 3D representation generation, achieving high electrode position accuracy without proportionally increasing overall system complexity
Solution Approach 2:
The patent employs a geometry shader program that performs multiple functions: calculating Bezier curve control points, determining electrode positions, and generating 3D representations. This multi-functional approach consolidates several computational tasks into a single versatile shader program, reducing the need for separate specialized components and managing computational complexity through unified processing
Data Source
AI summary
A technique is described herein. The technique includes receiving endpoint location data in a geometry shader; processing the endpoint location data to calculate Bezier curve control points; and based on the Bezier curve control points, determining estimated electrode positions for the catheter.