A comparison of two models of electrodes for ECT simulations
This paper discusses some numerical aspects of the simulation of electroconvulsive therapy (ECT). A realistic finite-element model of the human head is used to discuss two approaches to modeling the electrodes applied to human head skin. The first approach models the electrode by a mixed-boundary co...
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| Veröffentlicht in: | IEEE transactions on magnetics 2006-04, Vol.42 (4), p.1395-1398 |
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| container_end_page | 1398 |
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| container_title | IEEE transactions on magnetics |
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| creator | Szmurlo, R. Sawicki, B. Starzynski, J. Wincenciak, S. |
| description | This paper discusses some numerical aspects of the simulation of electroconvulsive therapy (ECT). A realistic finite-element model of the human head is used to discuss two approaches to modeling the electrodes applied to human head skin. The first approach models the electrode by a mixed-boundary condition, while the second one uses additional subdomain imitating electrode-to-skin contact for that purpose [three-dimensional (3-D) model]. An algorithm of grid modification used to add an external subdomain modeling the electrode contact resistance is presented. The authors examine the influence of the electrode model on the convergence speed of the iterative solver. The authors state that the 3-D model is better conditioned, and, thus, it converges faster |
| doi_str_mv | 10.1109/TMAG.2006.871580 |
| format | Article |
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A realistic finite-element model of the human head is used to discuss two approaches to modeling the electrodes applied to human head skin. The first approach models the electrode by a mixed-boundary condition, while the second one uses additional subdomain imitating electrode-to-skin contact for that purpose [three-dimensional (3-D) model]. An algorithm of grid modification used to add an external subdomain modeling the electrode contact resistance is presented. The authors examine the influence of the electrode model on the convergence speed of the iterative solver. The authors state that the 3-D model is better conditioned, and, thus, it converges faster</description><subject>Computer simulation</subject><subject>Contact</subject><subject>Contact resistance</subject><subject>Convergence</subject><subject>Cross-disciplinary physics: materials science; rheology</subject><subject>Electrical capacitance tomography</subject><subject>Electrodes</subject><subject>Epidermis</subject><subject>Exact sciences and technology</subject><subject>Human</subject><subject>Humans</subject><subject>Magnetism</subject><subject>Materials science</subject><subject>Mathematical analysis</subject><subject>Mathematical models</subject><subject>Medical treatment</subject><subject>Other topics in materials science</subject><subject>Physics</subject><subject>Protection</subject><subject>Shape</subject><subject>Skin</subject><subject>Solvers</subject><issn>0018-9464</issn><issn>1941-0069</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2006</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNp9kc9LwzAUx4MoOKd3wUsR1FNnXvMbvIwxpzDxMs8hNil0tM1MWsT_3pQNBh6EwOOb93nfR75B6BrwDACrx83bfDUrMOYzKYBJfIImoCjk6UadognGIHNFOT1HFzFuk6QM8AQ9zbPStzsT6ui7zFdZ_-2z1lvXxFG5xpV9SDJmlQ_ZcrHJYt0Ojelr38VLdFaZJrqrQ52ij-flZvGSr99Xr4v5Oi-JJH1eWABGnf3kpTSF4NIo6pRKx3LGLasYAJdEUg6WgBEglSlAEGsqqyi2ZIoe9r674L8GF3vd1rF0TWM654eoFVDOQRGeyPt_yUJiLDBjCbz9A279ELr0Ci05o4JgSROE91AZfIzBVXoX6taEHw1Yj6nrMXU9pq73qaeRu4OviaVpqmC6so7HOcF5-pAicTd7rnbOHds8rRWc_ALFXIfp</recordid><startdate>20060401</startdate><enddate>20060401</enddate><creator>Szmurlo, R.</creator><creator>Sawicki, B.</creator><creator>Starzynski, J.</creator><creator>Wincenciak, S.</creator><general>IEEE</general><general>Institute of Electrical and Electronics Engineers</general><general>The Institute of Electrical and Electronics Engineers, Inc. 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A realistic finite-element model of the human head is used to discuss two approaches to modeling the electrodes applied to human head skin. The first approach models the electrode by a mixed-boundary condition, while the second one uses additional subdomain imitating electrode-to-skin contact for that purpose [three-dimensional (3-D) model]. An algorithm of grid modification used to add an external subdomain modeling the electrode contact resistance is presented. The authors examine the influence of the electrode model on the convergence speed of the iterative solver. The authors state that the 3-D model is better conditioned, and, thus, it converges faster</abstract><cop>New York, NY</cop><pub>IEEE</pub><doi>10.1109/TMAG.2006.871580</doi><tpages>4</tpages></addata></record> |
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| subjects | Computer simulation Contact Contact resistance Convergence Cross-disciplinary physics: materials science rheology Electrical capacitance tomography Electrodes Epidermis Exact sciences and technology Human Humans Magnetism Materials science Mathematical analysis Mathematical models Medical treatment Other topics in materials science Physics Protection Shape Skin Solvers |
| title | A comparison of two models of electrodes for ECT simulations |
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