An Antenna-Theory Method for Modeling High-Frequency RF Coils : A Segmented Birdcage Example
Joint Authors
Eagan, Timothy
Shou, Xingxian
Brown, Robert
Taracila, Victor
Fujita, Hiroyuki
Baig, Tanvir
Chen, Xin
Source
International Journal of Antennas and Propagation
Issue
Vol. 2008, Issue 2008 (31 Dec. 2008), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2008-04-17
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
We suggest that center-fed dipole antenna analytics can be employed in the optimized design of high-frequency MRI RF coil applications.
The method is illustrated in the design of a single-segmented birdcage model and a short multisegmented birdcage model.
As a byproduct, it is shown that for a long single-segmented birdcage model, the RF field within it is essentially a TEM mode and has excellent planar uniformity.
For a short shielded multisegmented birdcage model, the RF field is optimized with a target-field approach with an average SAR functional.
The planar homogeneity of the optimized RF field is significantly improved compared with that of a single-segmented birdcage model with the same geometry.
The accuracy of the antenna formulae is also verified with numerical simulations performed via commercial software.
The model discussed herein provides evidence for the effectiveness of antenna methods in future RF coil analysis.
American Psychological Association (APA)
Chen, Xin& Taracila, Victor& Eagan, Timothy& Fujita, Hiroyuki& Shou, Xingxian& Baig, Tanvir…[et al.]. 2008. An Antenna-Theory Method for Modeling High-Frequency RF Coils : A Segmented Birdcage Example. International Journal of Antennas and Propagation،Vol. 2008, no. 2008, pp.1-10.
https://search.emarefa.net/detail/BIM-472908
Modern Language Association (MLA)
Chen, Xin…[et al.]. An Antenna-Theory Method for Modeling High-Frequency RF Coils : A Segmented Birdcage Example. International Journal of Antennas and Propagation No. 2008 (2008), pp.1-10.
https://search.emarefa.net/detail/BIM-472908
American Medical Association (AMA)
Chen, Xin& Taracila, Victor& Eagan, Timothy& Fujita, Hiroyuki& Shou, Xingxian& Baig, Tanvir…[et al.]. An Antenna-Theory Method for Modeling High-Frequency RF Coils : A Segmented Birdcage Example. International Journal of Antennas and Propagation. 2008. Vol. 2008, no. 2008, pp.1-10.
https://search.emarefa.net/detail/BIM-472908
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-472908