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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Entcheva, E. Eason, J. Claydon, F. Malkin, R. |
| Copyright Year | 1997 |
| Description | Author affiliation: Memphis Univ., TN, USA (Entcheva, E.) |
| Abstract | This study aims at predicting the spatial extent of the polarization in myocardium (surface and in-depth patterns) resulting from bipolar current injection. The three-dimensional effects resulting from transmural fiber rotation and unequal anisotropy ratio for the intra- and extracellular domain are modeled using a 3D finite element bidomain model. Circular current and voltage electrodes with different radii and distance between them are considered. The authors assess the accuracy of the idealized models, applied in combination with the four electrode technique for interpretation of conductivity measurements in myocardium, in the presence of transmural rotation. Based on the spatial sensitivity of the extracellular and transmembrane potential fields to the underlying conductivity tensors the authors recommend an alternative placement of the sensing electrodes for standard electrical or optical measurements. |
| Starting Page | 717 |
| Ending Page | 720 |
| File Size | 535691 |
| Page Count | 4 |
| File Format | |
| ISBN | 0780344456 |
| ISSN | 02766547 |
| DOI | 10.1109/CIC.1997.648151 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 1997-09-07 |
| Publisher Place | Sweden |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Myocardium Electrodes Extracellular Conductivity measurement Optical fiber polarization Anisotropic magnetoresistance Finite element methods Voltage Tensile stress Measurement standards |
| Content Type | Text |
| Resource Type | Article |
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