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  Effects of the geometry and size of the cerebrospinal fluid on MRI transmit and safety efficiencies at 300 MHz

Kozlov, M., Bazin, P.-L., Weiskopf, N., & Möller, H. E. (2016). Effects of the geometry and size of the cerebrospinal fluid on MRI transmit and safety efficiencies at 300 MHz. In Proceedings of the 38th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (pp. 2909-2912).

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-002B-4FD0-5 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-002B-D269-F
Genre: Conference Paper

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Kozlov_EMBC2016_CSF_1336-07920086.pdf (Publisher version), 2MB
 
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 Creators:
Kozlov, Mikhail1, Author              
Bazin, Pierre-Louis1, 2, Author              
Weiskopf, Nikolaus1, Author              
Möller, Harald E.3, Author              
Affiliations:
1Department Neurophysics (Weiskopf), MPI for Human Cognitive and Brain Sciences, Max Planck Society, ou_2205649              
2Department Neurology, MPI for Human Cognitive and Brain Sciences, Max Planck Society, Leipzig, DE, ou_634549              
3Methods and Development Unit Nuclear Magnetic Resonance, MPI for Human Cognitive and Brain Sciences, Max Planck Society, ou_634558              

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Free keywords: MRI; SAR; Human model
 Abstract: We investigated effects of the geometry and size of the cerebrospinal fluid (CSF) on transmit and safety efficiencies in magnetic resonance imaging at 300 MHz. For the human model investigated here and a head position at the top of the RF coil, an increase of CSF space resulted in essential degradation of the safety excitation efficiency without an easily recognizable influence on the magnetic field distribution. For a head location in the coil center, CSF space variation did not significantly change the safety excitation and transmit efficiencies. We note that the assumed geometries in our study may not reflect in vivo conditions precisely and the results cannot be readily generalized.

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Language(s): eng - English
 Dates: 2016-08-15
 Publication Status: Published in print
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Title: The 38th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC’16)
Place of Event: Orlando, FL, USA
Start-/End Date: 2016-08-16 - 2016-08-20

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Title: Proceedings of the 38th Annual International Conference of the IEEE Engineering in Medicine and Biology Society
Source Genre: Proceedings
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Pages: - Volume / Issue: - Sequence Number: - Start / End Page: 2909 - 2912 Identifier: -