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Real-Time Cardiac Mapping with a Noninvasive Imageless Electrocardiographic Imaging System
Published on: April 11, 2025
Real time conductance catheter system based on FPGA
María de Los A Gómez López1, Juan M Olivera, Myriam C Herrera
1Electrical, Electronic and Computational Engineering Department, National University of Tucumán, Argentina. mgomezlopez@herrera.unt.edu.ar
Summary
This study introduces a novel digital conductance catheter system using Field Programmable Gate Arrays (FPGA) for real-time ventricular volume measurement in experiments. The system demonstrates accurate volume readings, outperforming previous analog methods.
Area of Science:
- Biomedical Engineering
- Medical Devices
- Electrical Engineering
Background:
- Accurate real-time measurement of ventricular volumes is crucial for experimental cardiovascular research.
- Existing analog conductance catheter systems have limitations in precision and data processing.
Purpose of the Study:
- To develop and validate a digital conductance catheter system utilizing Field Programmable Gate Arrays (FPGA).
- To enable precise, real-time measurement of ventricular volumes for experimental applications.
Main Methods:
- System design based on FPGA for digital signal processing.
- Conductance measurements using a segmented resistance network within the catheter.
- Volume calibration in vitro using solutions with blood-like resistivity and containers of known geometry.
- Comparative analysis against a conventional analog conductance catheter system.
Main Results:
- The digital system successfully performed conductance and volume measurements.
- In vitro testing confirmed the system's ability to measure volumes accurately.
- The FPGA-based system showed comparable or improved performance over the analog system.
Conclusions:
- A novel FPGA-based digital conductance catheter system for experimental ventricular volume measurement has been successfully developed.
- The digital system offers a viable and potentially more accurate alternative to analog systems for research purposes.
