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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

Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference

|November 25, 2010

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.

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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.

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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.