A comparison study of regularization techniques on the theoretical design of phased array RF coils in MRI

Li, Y., Wang, H., Liu, F., Li, B.K., Shou, G., Weber, E. and Crozier, S. (2008). A comparison study of regularization techniques on the theoretical design of phased array RF coils in MRI. In: G. Dumont and H. Galiana, Proceedings of the 30th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. 30th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, Vancouver, Canada, (439-442). 20-24 August 2008. doi:10.1109/IEMBS.2008.4649184


Author Li, Y.
Wang, H.
Liu, F.
Li, B.K.
Shou, G.
Weber, E.
Crozier, S.
Title of paper A comparison study of regularization techniques on the theoretical design of phased array RF coils in MRI
Conference name 30th Annual International Conference of the IEEE Engineering in Medicine and Biology Society
Conference location Vancouver, Canada
Conference dates 20-24 August 2008
Proceedings title Proceedings of the 30th Annual International Conference of the IEEE Engineering in Medicine and Biology Society   Check publisher's open access policy
Place of Publication Piscataway, NJ, United States
Publisher IEEE
Publication Year 2008
Sub-type Fully published paper
DOI 10.1109/IEMBS.2008.4649184
ISBN 9781424418145
9781424418152
ISSN 1557-170X
Editor G. Dumont
H. Galiana
Start page 439
End page 442
Total pages 4
Collection year 2009
Language eng
Abstract/Summary In MRI engineering, regularization techniques can be effectively used to solve ill-posed problems in electromagnetics, such as the inverse design of phased array RF coils. In this work, a comparison on various regularization methods which are employed to numerically reconstruct a divergence-free cylindrical surface of current distribution is investigated. It is found that a coil current pattern is very sensitive to the modes of the basis function describing the current densities on the coil surface; and iterative regularization techniques generally produce better B1 field profiles compared with direct approaches.
Subjects E1
861502 Medical Instruments
090303 Biomedical Instrumentation
Q-Index Code E1
Q-Index Status Confirmed Code

 
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