Abstract
A finite difference model with 216000 elements was developed based on magnetic resonance (MR) images to determine an improved electrode size and position for external electrode defibrillation. With 10-10 cm electrodes located in the standard position on the anterior thoracic surface 31% of the current passed through the entire heart but only 8.5% of the current passed through the myocardium. Moving each electrode laterally 3.3 cm reduced the current passing through the heart to 25.4% but improved the uniformity of the current passing the myocardium by nearly a factor of two based on an index developed to assess electrode performance. It appears an improved electrode size and position can be developed but its effect on the output level settings used with commercial defibrillators needs to be carefully considered because of load impedance changes.
| Original language | English (US) |
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| Title of host publication | Proceedings - Computers in Cardiology, CIC 1992 |
| Publisher | Institute of Electrical and Electronics Engineers Inc. |
| Pages | 711-714 |
| Number of pages | 4 |
| ISBN (Electronic) | 0818635525, 9780818635526 |
| DOIs | |
| State | Published - 1992 |
| Event | 1992 IEEE Conference on Computers in Cardiology, CIC 1992 - Durham, United States Duration: Oct 11 1992 → Oct 14 1992 |
Publication series
| Name | Proceedings - Computers in Cardiology, CIC 1992 |
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Conference
| Conference | 1992 IEEE Conference on Computers in Cardiology, CIC 1992 |
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| Country/Territory | United States |
| City | Durham |
| Period | 10/11/92 → 10/14/92 |
Bibliographical note
Publisher Copyright:© 1992 IEEE.