ArticleAmerican journal of physiology. Heart and circulatory physiology2010
A biophysical model for cardiac microimpedance measurements.
Article in American journal of physiology. Heart and circulatory physiology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed, 15 citations in OpenAlex.
- Approaches for determining cardiac bidomain conductivity values: progress and challenges.Medical & biological engineering & computing · 2020Review
- Sensor spacing affects the tissue impedance spectra of rabbit ventricular epicardium.American journal of physiology. Heart and circulatory physiology · 2014Article
- Does ephaptic coupling contribute to propagation in cardiac tissue?Biophysical journal · 2014Article
- A structural framework for interpretation of four-electrode microimpedance spectra in cardiac tissue.Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference · 2014Article
- A multi-electrode array and inversion technique for retrieving six conductivities from heart potential measurements.Medical & biological engineering & computing · 2013Article
- A new approach for resolution of complex tissue impedance spectra in hearts.IEEE transactions on bio-medical engineering · 2013Article
- Uncertainty Visualization in Forward and Inverse Cardiac Models.Computing in cardiology · 2013Article
- Bayesian quantitative electrophysiology and its multiple applications in bioengineering.IEEE reviews in biomedical engineering · 2010Review
Corrections and comments
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Authors and funding
2 authors at 2 institutions in 1 country.
Funding
Abstract
Alterations to cell-to-cell electrical conductance and to the structural arrangement of the collagen network in cardiac tissue are recognized contributors to arrhythmia development, yet no present method allows direct in vivo measurements of these conductances at their true microscopic scale. The present report documents such a plan, which involves interstitial multisite stimulation at a subcellular to cellular size scale, and verifies the performance of the method through biophysical modeling. Although elements of the plan have been analyzed previously, their performance as a whole is considered here in a comprehensive way. Our analyses take advantage of a three-dimensional structural framework in which interstitial, intracellular, and membrane components are coupled to one another on the fine size scale, and electrodes are separated from one another as in arrays we fabricate routinely. With this arrangement, determination of passive tissue resistances can be made from measurements taken on top of the currents flowing in active tissue. In particular, our results show that measurements taken at multiple frequencies and electrode separations provide powerful predictions of the underlying tissue resistances in all geometric dimensions. Because of the small electrode size, separation of interstitial from intracellular compartment contributions is readily achieved.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.