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High Density Body Surface Potential Mapping with Conducting Polymer-Eutectogel Electrode Arrays for ECG imaging
Ruben Ruiz-Mateos Serrano1, Santiago Velasco-Bosom1, Antonio Dominguez-Alfaro1,2
1Electrical Engineering Division, University of Cambridge, Cambridge, CB3 0FA, UK.
Summary
A new manufacturing method creates high-density electrode arrays for electrocardiography imaging (ECGi). This advance improves body surface potential map accuracy, paving the way for more precise clinical diagnosis of heart conditions.
Area of Science:
- Biomedical Engineering
- Medical Imaging
- Materials Science
Background:
- Electrocardiography imaging (ECGi) is a non-invasive technique using body surface potential maps (BSPM) to enhance conventional electrocardiography (ECG) for diagnosing cardiac dysfunction.
- Current ECGi lacks the precision required for clinical adoption, partly due to limitations in electrode array density and manufacturing.
- High-density electrode arrays are theorized to improve ECGi accuracy, but practical implementation has been hindered by manufacturing and processing challenges.
Purpose of the Study:
- To develop a novel manufacturing process for high-density electrode arrays suitable for ECGi applications.
- To optimize electrode array design parameters for improved BSPM acquisition in ECGi.
- To demonstrate the feasibility of using advanced electrode arrays for more precise cardiac diagnostics.
Main Methods:
- A novel conducting polymer electrode manufacturing process was developed on flexible substrates.
- The process enabled the creation of high-density, mm-sized, conformable, and easily attachable electrode arrays.
- Prototype arrays underwent temporal, spectral, and correlation analysis to validate design parameters and BSPM feasibility.
Main Results:
- A new manufacturing method successfully produced high-density electrode arrays with optimized parameters for ECGi.
- The prototype arrays demonstrated the feasibility of acquiring high-density BSPM.
- Analysis confirmed the validity of the chosen design parameters for enhanced ECGi applications.
Conclusions:
- The developed conducting polymer electrode manufacturing process overcomes previous limitations, enabling high-density electrode arrays for BSPM.
- These advanced arrays hold significant potential for improving the accuracy and clinical utility of ECGi.
- This work represents a critical step towards the development of clinically applicable ECGi devices.
