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  Comparison of lead electromagnetic model and 3D em results for helix and straight leads

Kozlov, M., & Kainz, W. (2017). Comparison of lead electromagnetic model and 3D em results for helix and straight leads. In Proceedings of the 2017 International Conference on Electromagnetics in Advanced Applications (ICEAA) (pp. 649-652). doi:10.1109/ICEAA.2017.8065330.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-002E-850F-7 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-002E-8510-1
Genre: Conference Paper

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 Creators:
Kozlov, Mikhail1, Author              
Kainz, W.2, Author
Affiliations:
1Department Neurophysics (Weiskopf), MPI for Human Cognitive and Brain Sciences, Max Planck Society, ou_2205649              
2Division of Biomedical Physics, Office of Science and Engineering Laboratories, SilverSpring, MD, USA, ou_persistent22              

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Free keywords: Lead; Trajectory; Three-dimensional displays; Radio frequency; Solid modeling; Electric fields
 Abstract: This case study investigates the difference in the RF-induced power deposition (P) for helix and straight leads at 127.7 MHz obtained with the lead electromagnetic model (LEM) and direct 3D electromagnetic (EM) simulations. A large set of incident electric fields was generated in a phantom by an array of four antennas with varying spatial positions and sources. We found discrepancies between the LEM and the 3D EM results, which are up to an order of magnitude higher for the helix lead compared to the straight lead. The results are raising doubts about the applicability of the LEM method for radiofrequency (RF) induced heating of any active implantable medical devices (AIMDs) during magnetic resonance imaging (MRI) exposure.

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Language(s): eng - English
 Dates: 2017-10-12
 Publication Status: Published online
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: DOI: 10.1109/ICEAA.2017.8065330
 Degree: -

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Title: Proceedings of the 2017 International Conference on Electromagnetics in Advanced Applications (ICEAA)
Source Genre: Proceedings
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Publ. Info: -
Pages: - Volume / Issue: - Sequence Number: 8065330 Start / End Page: 649 - 652 Identifier: -