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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Patriciu, A. DeMonte, T.P. Joy, M.L.G. Struijk, J.J. |
| Copyright Year | 2001 |
| Description | Author affiliation: Center for Sensory-Motor Interaction, Aalborg Univ., Denmark (Patriciu, A.) |
| Abstract | Designers of gel-type surface electrodes, used in medical applications such as pain relief and neuromuscular stimulation, require a more thorough understanding of current pathways in tissue in order to design more effective electrical stimulation systems. To investigate these pathways, a finite element model (FEM) was used to compute current density distributions produced by an electrode placed on the surface of a homogeneous, tissue-mimicking gel slab. The gel slab phantom was constructed and the current densities were measured using a recently developed technique called current density imaging (CDI). CDI uses the phase data produced by magnetic resonance imaging (MRI) as a measure of the magnetic fields produced by the externally applied current. The results of the FEM simulation and CDI measurements compare well. CDI has several potential advantages over conventional FEM techniques including: no requirement for knowledge of local tissue conductivities, low and constant computational overhead regardless of tissue complexity, and the potential to perform in-vivo measurements. |
| Starting Page | 2403 |
| Ending Page | 2406 |
| File Size | 532763 |
| Page Count | 4 |
| File Format | |
| ISBN | 0780372115 |
| ISSN | 1094687X |
| DOI | 10.1109/IEMBS.2001.1017261 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2001-10-25 |
| Publisher Place | Turkey |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Current density Finite element methods Magnetic field measurement Biomedical electrodes Magnetic resonance imaging Slabs Current measurement Medical services Biomedical equipment Pain |
| Content Type | Text |
| Resource Type | Article |
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