Application of the boundary element method to the solution of anisotropic electromagnetic problems
The paper discusses the application of the boundary element method to the computation of the electric potential and magnetic field generated by bioelectric sources in an anisotropic inhomogeneous volume conductor, using a proper coordinate transformation. It is shown that the co-ordinate transformat...
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| Veröffentlicht in: | Medical & biological engineering & computing Jg. 32; H. 4; S. 399 |
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| Format: | Journal Article |
| Sprache: | Englisch |
| Veröffentlicht: |
United States
01.07.1994
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| ISSN: | 0140-0118 |
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| Abstract | The paper discusses the application of the boundary element method to the computation of the electric potential and magnetic field generated by bioelectric sources in an anisotropic inhomogeneous volume conductor, using a proper coordinate transformation. It is shown that the co-ordinate transformation generally not only affects the conductivity and geometry of the volume conductor under consideration, but also the current source term and the continuity relation on the interfaces bounding regions of different conductivity. To illustrate these results, the electric potentials in an anisotropic finite length cylinder and in an anisotropic volume conductor of irregular (torso) shape, computed by the boundary element method, are compared with the results obtained by the analytical solution and the finite element method, respectively. |
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| AbstractList | The paper discusses the application of the boundary element method to the computation of the electric potential and magnetic field generated by bioelectric sources in an anisotropic inhomogeneous volume conductor, using a proper coordinate transformation. It is shown that the co-ordinate transformation generally not only affects the conductivity and geometry of the volume conductor under consideration, but also the current source term and the continuity relation on the interfaces bounding regions of different conductivity. To illustrate these results, the electric potentials in an anisotropic finite length cylinder and in an anisotropic volume conductor of irregular (torso) shape, computed by the boundary element method, are compared with the results obtained by the analytical solution and the finite element method, respectively.The paper discusses the application of the boundary element method to the computation of the electric potential and magnetic field generated by bioelectric sources in an anisotropic inhomogeneous volume conductor, using a proper coordinate transformation. It is shown that the co-ordinate transformation generally not only affects the conductivity and geometry of the volume conductor under consideration, but also the current source term and the continuity relation on the interfaces bounding regions of different conductivity. To illustrate these results, the electric potentials in an anisotropic finite length cylinder and in an anisotropic volume conductor of irregular (torso) shape, computed by the boundary element method, are compared with the results obtained by the analytical solution and the finite element method, respectively. The paper discusses the application of the boundary element method to the computation of the electric potential and magnetic field generated by bioelectric sources in an anisotropic inhomogeneous volume conductor, using a proper coordinate transformation. It is shown that the co-ordinate transformation generally not only affects the conductivity and geometry of the volume conductor under consideration, but also the current source term and the continuity relation on the interfaces bounding regions of different conductivity. To illustrate these results, the electric potentials in an anisotropic finite length cylinder and in an anisotropic volume conductor of irregular (torso) shape, computed by the boundary element method, are compared with the results obtained by the analytical solution and the finite element method, respectively. |
| Author | Zhou, H van Oosterom, A |
| Author_xml | – sequence: 1 givenname: H surname: Zhou fullname: Zhou, H organization: Laboratory of Medical Physics and Biophysics, University of Nijimegen, The Netherlands – sequence: 2 givenname: A surname: van Oosterom fullname: van Oosterom, A |
| BackLink | https://www.ncbi.nlm.nih.gov/pubmed/7967804$$D View this record in MEDLINE/PubMed |
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| CitedBy_id | crossref_primary_10_4049_jimmunol_180_6_3980 crossref_primary_10_1007_s11517_011_0837_9 crossref_primary_10_1016_S0928_4869_00_00007_0 crossref_primary_10_1088_0959_7174_13_4_302 crossref_primary_10_1172_JCI14397 crossref_primary_10_1088_1361_6560_aafaaf |
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| SubjectTerms | Anisotropy Biophysical Phenomena Biophysics Electromagnetic Fields Humans Models, Biological |
| Title | Application of the boundary element method to the solution of anisotropic electromagnetic problems |
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