Please confirm you are human (Sign Up for free to never see this)
← Back to Search
Performance Evaluation Of Five Types Of Ag/AgCl Bio-Electrodes For Cerebral Electrical Impedance Tomography
Shiwei Xu, Meng Dai, C. Xu, Chaoshuang Chen, Mengxing Tang, Xuetao Shi, Xiuzhen Dong
Published 2011 · Materials Science, Medicine
Save to my Library
Download PDFAnalyze on Scholarcy
Electrical impedance tomography (EIT) is an emerging medical imaging technique, which has already been investigated in several clinical applications due to its low-cost, non-invasiveness, non-radioactivity, high temporal resolution, and great sensitivity to impedance changes. One potential use of EIT is to perform long-term continuous imaging monitoring of brain for patients who suffer from severe cerebral diseases. However, this application requires a demanding performance of electrodes because of the characteristics of cerebral EIT measurements. Although Ag/AgCl bio-electrodes are widely used for clinical practices or EIT research at the moment, influences of different types of Ag/AgCl electrodes on cerebral EIT measurements have not been investigated. In this study, five common types of Ag/AgCl bio-electrodes were put into comparison by measuring the forearm and the brain of 10 healthy adult volunteers and evaluating those data in frequency or time domain in terms of contact impedance, uniformity, signal-to-noise ratio, and stability. Results show that Ag/AgCl powder electrode has an overall best performance with as low contact impedance as commercial ECG electrodes (p > 0.05), high SNR (60.3 ± 4.5 dB), better uniformity (coefficient of correlation 0.95 ± 0.03), and greater stability (slope 0.68 ± 0.03). After further improvement in design and instrumentation, Ag/AgCl powder electrode is likely to become the optimal choice for cerebral EIT measurements and provide feasible technical support for further research or application in cerebral EIT.
This paper references
Skin impedance measurements using simple and compound electrodes
E. J. Woo (2006)
Factors affecting electrode-gel-skin interface impedance in electrical impedance tomography
E. McAdams (2006)
Pseudo-polar drive patterns for brain electrical impedance tomography.
Xuetao Shi (2006)
Validation of a 3D reconstruction algorithm for EIT of human brain function in a realistic head-shaped tank.
A. T. Tidswell (2001)
Real-Time Imaging and Detection of Intracranial Haemorrhage by Electrical Impedance Tomography in a Piglet Model
C. Xu (2010)
Three-Dimensional Electrical Impedance Tomography of Human Brain Activity
T. Tidswell (2001)
Application of Electrical Impedance Tomography for Continuous Monitoring of Retroperitoneal Bleeding After Blunt Trauma
Wanjun Shuai (2009)
Image monitoring for an intraperitoneal bleeding model of pigs using electrical impedance tomography.
S. Wan-jun (2008)
Preliminary static EIT images of the thorax in health and disease.
V. Cherepenin (2002)
The Biomedical Engineering Handbook
J. Bronzino (1995)
Preliminary research on monitoring of cerebral ischemia using electrical impedance tomography technique.
Xuetao Shi (2008)
Analysis on the influence of tissues/organs' movements in EIT images of lung ventilation using finite difference thorax models
J. Zhang (2004)
Identification of a suitable current waveform for acute stroke imaging.
A. Romsauerova (2006)
Practical factors in neonatal lung imaging using electrical impedance tomography
A. Taktak (2006)
Evaluation of the performance of the Multifrequency Electrical Impedance Tomography (MFEIT) intended for imaging acute stroke
A. Romsauerova (2007)
A comparison of headnet electrode arrays for electrical impedance tomography of the human head.
A. T. Tidswell (2003)
Preliminary results from an EIT breast imaging simulation system.
W. Wang (2001)
High precision Multifrequency Electrical Impedance Tomography System and Preliminary imaging results on saline tank
S. Xue-tao (2005)
Textile electrodes in electrical bioimpedance measurements – a comparison with conventional Ag/AgCl electrodes
J. C. Marquez (2009)
A comparison of electrodes for potential use in paediatric/infant apnoea monitoring.
M. J. Mayotte (1994)
A Novel Image Monitoring Software System of Electrical Impedance Tomography for Internal Hemorrhage
Canhua Xu (2007)
Skin impedance from 1 Hz to 1 MHz
J. Rosell (1988)
Bioimpedance tomography (electrical impedance tomography).
R. Bayford (2006)
Skin Electrode Impedance of Textile Electrodes for Bioimpedance Spectroscopy
G. Medrano (2007)
Multi-frequency time-difference complex conductivity imaging of canine and human lungs using the KHU Mark1 EIT system.
Jihyeon Kuen (2009)
A direct comparison of wet and dry abrasion behaviour of mild steel
S. Wirojanupatump (1999)
Preliminary research on monitoring of cerebral ischemia using electrical impedance tomography technique
Xuetao Shi (2008)
Factors determining and limiting the impedance behavior of implanted bioelectrodes
Y. Duan (2001)
A direct comparison of wet, dry and insulating bioelectric recording electrodes.
A. Searle (2000)
A Resistive Mesh Phantom for Assessing the Performance of EIT Systems
H. Gagnon (2010)
Different approaches for quantifying ventilation distribution and lung tissue properties by functional EIT.
G. Hahn (2010)
Assessment of noise and drift artefacts in electrical impedance tomography measurements using the sheffield Mark I system
K. Boone (1995)
Some novel approaches large scale algorithms for multi-frequency electrical impedance tomography of the human head
L. Horesh (2006)
Comparison of Three Kinds of Electrode–Skin Interfaces for Electrical Impedance Scanning
Yinsuo Yin (2010)
A method for removing artefacts from continuous EEG recordings during functional electrical impedance tomography for the detection of epileptic seizures.
L. Fabrizi (2010)
A comparison study of electrodes for neonate electrical impedance tomography.
M. Rahal (2009)
Analysis of resting noise characteristics of three EIT systems in order to optimize time difference imaging with scalp electrodes during epileptic seizures
L. Fabrizi (2004)
Real-time imaging of subarachnoid hemorrhage in piglets with electrical impedance tomography.
M. Dai (2010)
A study of intra-cochlear electrodes and tissue interface by electrochemical impedance methods in vivo.
Y. Y. Duan (2004)
Electrical Impedance Tomography
M. Cheney (1999)
Analysis of resting noise characteristics of three EIT systems in order to compare suitability for time difference imaging with scalp electrodes during epileptic seizures.
L. Fabrizi (2007)
Imaging of physiologically evoked responses by electrical impedance tomography with cortical electrodes in the anaesthetized rabbit.
D. Holder (1996)
Effect of skin impedance on image quality and variability in electrical impedance tomography: a model study
K. Boone (2006)
Measurement of noise and impedance of dry and wet textile electrodes, and textile electrodes with hydrogel
M.M. Puurtinen (2006)
A manual of electroencephalographic technology
C. Binnie (1982)
Breast imaging using 3D electrical impedence tomography.
S. N. Prasad (2008)
Applied potential tomography: possible clinical applications.
B. H. Brown (1985)
A review of errors in multi-frequency EIT instrumentation.
A. McEwan (2007)
This paper is referenced by
Long-term outcome after acute lung injury
C. Hough (2012)
Fabrication and impedance measurement of novel metal dry bioelectrode
W. Zhou (2013)
Laser direct micromilling of copper-based bioelectrode with surface microstructure array
W. Zhou (2015)
Screen printed MWCNT/PDMS based dry electrode sensor for electrocardiogram (ECG) measurements
A. Chlaihawi (2015)
Electrical impedance performance of metal dry bioelectrode with different surface coatings
W. Liu (2018)
Development of flexible dry ECG electrodes based on MWCNT/PDMS composite
A. Chlaihawi (2015)
Paper-Based Flexible Electrode Using Chemically-Modified Graphene and Functionalized Multiwalled Carbon Nanotube Composites for Electrophysiological Signal Sensing
M. F. Hossain (2019)
A Low Contact Impedance Medical Flexible Electrode Based on a Pyramid Array Micro-Structure
S. Wang (2020)
Liquid Metal Enabled Skin Electronics
J. Liu (2018)
Different displacement of bioimpedance vector due to Ag/AgCl electrode effect
L. Nescolarde (2016)
A Versatile and Reproducible Multi-Frequency Electrical Impedance Tomography System
J. Avery (2017)
Preparation and characterization of a novel sprayable hydrogel for skin preparation to record ECG and other biopotentials.
Sunil Tej Boppudi (2020)
Experimental Studies of Alternating and Direct Current Impedance Properties of Ag/AgCl Electrodes
W. Liu (2015)
Characterization of alternating current impedance properties of biomedical electrodes
W. Zhou (2013)
Conformable liquid metal printed epidermal electronics for smart physiological monitoring and simulation treatment
X. Wang (2018)
Biomimetic Cilia‐Patterned Rubber Electrode Using Ultra Conductive Polydimethylsiloxane
G. J. Jin (2018)
Real-Time Monitoring of Contact Impedance From Multiple Electrode–Scalp Interfaces During Cerebral Electrical Impedance Tomography
Hang Ma (2019)
Multi-frequency electrical impedance tomography and neuroimaging data in stroke patients
Nir Goren (2018)
Fabrication of a Micro-Needle Array Electrode by Thermal Drawing for Bio-Signals Monitoring
Lei Ren (2016)
Fabrication of Micro-Needle Electrodes for Bio-Signal Recording by a Magnetization-Induced Self-Assembly Method
Keyun Chen (2016)
Optimal combination of electrodes and conductive gels for brain electrical impedance tomography
Lin Yang (2018)
Development of printed and flexible dry ECG electrodes
A. Chlaihawi (2018)
Fabrication of Composite Microneedle Array Electrode for Temperature and Bio-Signal Monitoring
Y. Sun (2018)
Development of a Multi-Channel Compact-Size Wireless Hybrid sEMG/NIRS Sensor System for Prosthetic Manipulation
W. Guo (2016)
In Vivo Imaging of Twist Drill Drainage for Subdural Hematoma: A Clinical Feasibility Study on Electrical Impedance Tomography for Measuring Intracranial Bleeding in Humans
M. Dai (2013)
New polypyrrole based bio-sensors for Bio-impedance measurement
G. Ţelipan (2019)
A Flexible Dry ECG Patch for Heart Rate Variability Monitoring
Meraj Ahmad (2020)
Magnetic field assisted laser fabrication and electrical characterizations of metal dry Biolectrode with surface microstructures
W. Zhou (2019)
Sensors for Electrical Impedance Tomography
T. Bera (2014)
Characterization of impedance properties of metal dry bioelectrodes with surface microstructure arrays
W. Zhou (2017)