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Bio-Impedance Sensor for Real-Time Artery Diameter Waveform Assessment.
Mugeb Al-Harosh1, Marat Yangirov1, Dmitry Kolesnikov1
1Department of Medical and Technical Information Technology, Bauman Moscow State Technical University, 105005 Moscow, Russia.
Sensors (Basel, Switzerland)
|December 28, 2021
Summary
This study developed a self-calibrated bio-impedance sensor for real-time artery diameter and elasticity monitoring. The system removes red blood cell effects for accurate blood pressure and long-term monitoring.
Area of Science:
- Biomedical Engineering
- Physiological Monitoring
- Medical Devices
Background:
- Real-time assessment of artery diameter waveforms enables beat-to-beat pressure changes and long-term blood pressure monitoring.
- Existing methods may lack precision in capturing dynamic arterial parameters.
Purpose of the Study:
- To develop a self-calibrated bio-impedance sensor for measuring blood pressure-dependent parameters like artery diameter waveform and elasticity.
- To create an algorithm for accurate electrode placement based on patient-specific data.
Main Methods:
- Utilized analytical models requiring prior geometrical and physiological patient parameters.
- Developed an algorithm for selecting appropriate electrode systems and locations.
- Estimated and removed red blood cell orientation effects from bio-impedance signals.
Main Results:
- Successfully developed a self-calibrated bio-impedance sensor.
- The algorithm aids in accurate electrode placement for precise measurements.
- Removal of red cell orientation effects improved monitoring of diameter waveform changes related to blood pressure.
Conclusions:
- The developed sensor and algorithm enable accurate, long-term blood pressure monitoring.
- Self-calibration and artifact removal enhance the reliability of bio-impedance measurements for arterial health assessment.
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