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  Safety excitation efficiency of MRI 300MHz dualrow transmit arrays

Kozlov, M., & Möller, H. E. (2015). Safety excitation efficiency of MRI 300MHz dualrow transmit arrays. In 2015 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting (pp. 1352-1353). Piscataway: IEEE. doi:10.1109/APS.2015.7305065.

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Item Permalink: https://hdl.handle.net/11858/00-001M-0000-002B-41F6-3 Version Permalink: https://hdl.handle.net/11858/00-001M-0000-002B-D141-2
Genre: Conference Paper

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 Creators:
Kozlov, Mikhail1, Author           
Möller, Harald E.2, Author           
Affiliations:
1Department Neurophysics (Weiskopf), MPI for Human Cognitive and Brain Sciences, Max Planck Society, ou_2205649              
2Methods and Development Unit Nuclear Magnetic Resonance, MPI for Human Cognitive and Brain Sciences, Max Planck Society, ou_634558              

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Free keywords: Geometry; Tuning; Safety; Nonhomogeneous media; Load modeling; Magnetic resonance imaging; Power measurement
 Abstract: We investigated how performance trade-off depends on dual-row transmit array geometry, position of a head inside the array and array tuning condition. A clear winner was not found. For overlapped arrays, different tuning conditions resulted in larger peak-to-peak variation for CP excitation, but B1+v decrease was as a bit less for excitations that minimized IB1+v as compared with nonoverlapped arrays. For non-overlapped array the safety excitation efficiency was better if the distance between the crown of the head and the end of the array was small.

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Language(s): eng - English
 Dates: 2015-10-262015
 Publication Status: Issued
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: DOI: 10.1109/APS.2015.7305065
 Degree: -

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Title: 2015 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting
Source Genre: Proceedings
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Publ. Info: Piscataway : IEEE
Pages: - Volume / Issue: - Sequence Number: - Start / End Page: 1352 - 1353 Identifier: ISBN: 978-1-4799-7815-1