| Autor: |
Hackworth SA; Departments of Neurological Surgery, Electrical & Computer Engineering, and Bioengineering, University of Pittsburgh, Pittsburgh, PA 15260, USA., Sun M, Sclabassi RJ |
| Jazyk: |
angličtina |
| Zdroj: |
Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference [Annu Int Conf IEEE Eng Med Biol Soc] 2009; Vol. 2009, pp. 4508-11. |
| DOI: |
10.1109/IEMBS.2009.5334112 |
| Abstrakt: |
The X-Delta model for through-skin volume conduction systems is introduced and analyzed. This new model has advantages over our previous X model in that it explicitly represents current pathways in the skin. A vector network analyzer is used to take measurements on pig skin to obtain data for use in finding the model's impedance parameters. An optimization method for obtaining this more complex model's parameters is described. Results show the model to accurately represent the impedance behavior of the skin system with error of generally less than one percent. Uses for the model include optimizing energy transfer across the skin in a volume conduction system with appropriate current exposure constraints, and exploring non-linear behavior of the electrode-skin system at moderate voltages (below ten) and frequencies (kilohertz to megahertz). |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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