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  Investigating the effect of coil model losses on computational electromagnetic exposure of an ASTM phantom at 64 MHz MRI

Kozlov, M., Horner, M., Kainz, W., & Angelone, L. M. (2017). Investigating the effect of coil model losses on computational electromagnetic exposure of an ASTM phantom at 64 MHz MRI. In 2017 39th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC). doi:10.1109/EMBC.2017.8037115.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0002-CED1-A Version Permalink: http://hdl.handle.net/21.11116/0000-0002-D9CA-6
Genre: Conference Paper

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 Creators:
Kozlov, Mikhail1, Author              
Horner , Marc 2, Author
Kainz , Wolfgang 3, Author
Angelone, Leonardo M. 3, Author
Affiliations:
1Department Neurophysics (Weiskopf), MPI for Human Cognitive and Brain Sciences, Max Planck Society, ou_2205649              
2ANSYS, Inc., Evanston, IL, ou_persistent22              
3Division of Biomedical Physics, Office of Science and Engineering Laboratories, Silver Spring, MD, ou_persistent22              

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Free keywords: Phantoms, Radio frequency, Numerical models, Computational modeling, Load modeling, Capacitors, Magnetic resonance imaging
 Abstract: The goal of this work is to investigate the effect of coil losses on the electromagnetic field generated in an ASTM phantom by a birdcage coil. The study was based on different numerical implementations of an RF body coil at 64 MHz, using the same 3D EM and RF circuit co-simulation procedure. The coil quality factor was evaluated with respect to losses due to power feed mismatch and to resistive losses of the coil components. The results of the study showed that the magnetic field at the coil iso-center, normalized to the square root of the whole body specific absorption rate, depends on the coil quality factor.

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Language(s): eng - English
 Dates: 2017-09-14
 Publication Status: Published online
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1109/EMBC.2017.8037115
 Degree: -

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Title: 39th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC)
Place of Event: Seogwipo, South Korea
Start-/End Date: 2017-07-11 - 2017-07-15

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Title: 2017 39th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC)
Source Genre: Proceedings
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Pages: - Volume / Issue: - Sequence Number: - Start / End Page: - Identifier: ISBN: 978-1-5090-2809-2