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Improved electrode positions for local impedance measurements in the lung-a simulation study
Jakob Orschulik1, Rudolf Petkau, Tobias Wartzek
1Philips Chair for Medical Information Technology, Helmholtz Institute for Biomedical Engineering, RWTH Aachen University, Aachen, Germany.
Physiological Measurement
|November 5, 2016
Summary
Bioimpedance spectroscopy (BIS) can now monitor specific lung regions. Optimized electrode placements, identified using a human body finite element model, enable localized lung analysis for improved respiratory monitoring.
Area of Science:
- Biomedical Engineering
- Electrical Impedance Tomography
- Respiratory Physiology
Background:
- Bioimpedance spectroscopy (BIS) analyzes dielectric properties and body tissue composition.
- BIS is a non-invasive, real-time technique promising for lung monitoring.
- Current BIS electrode configurations lack regional lung specificity.
Purpose of the Study:
- To investigate electrode configurations for regional lung monitoring using BIS.
- To develop a method for localized lung analysis with BIS.
- To overcome the limitations of current BIS electrode placements.
Main Methods:
- Utilized a finite element model (FEM) of the human body.
- Studied the impact of various electrode configurations on BIS data.
- Evaluated and identified optimal electrode placements for eight distinct lung regions.
Main Results:
- Demonstrated that specific electrode configurations can focus BIS measurements.
- Identified suitable electrode configurations for analyzing eight different lung regions.
- Showcased the potential for localized lung analysis through optimized BIS.
Conclusions:
- Optimized electrode configurations enable regional lung analysis using BIS.
- This advancement allows for focused BIS measurements, improving lung monitoring capabilities.
- The findings pave the way for more precise, localized respiratory assessments.
