A MOM/FEM-based coil sensitivity mapping method for high-field parallel MRI

Jin, Jin, Liu, Feng, Li, Yu, Weber, Ewald, Xu, Wenlong and Crozier, Stuart (2011). A MOM/FEM-based coil sensitivity mapping method for high-field parallel MRI. In: 2011 Annual International Conference of the IEEE Engineering in Medicine and Biology Society: EMBC proceedings. 33rd Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC 2011), Boston, MA, United States, (2837-2840). 30 August - 3 September 2011. doi:10.1109/IEMBS.2011.6090784

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Author Jin, Jin
Liu, Feng
Li, Yu
Weber, Ewald
Xu, Wenlong
Crozier, Stuart
Title of paper A MOM/FEM-based coil sensitivity mapping method for high-field parallel MRI
Conference name 33rd Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC 2011)
Conference location Boston, MA, United States
Conference dates 30 August - 3 September 2011
Proceedings title 2011 Annual International Conference of the IEEE Engineering in Medicine and Biology Society: EMBC proceedings   Check publisher's open access policy
Journal name Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS   Check publisher's open access policy
Place of Publication Piscataway, NJ, United States
Publisher IEEE
Publication Year 2011
Sub-type Fully published paper
DOI 10.1109/IEMBS.2011.6090784
ISBN 9781424441228
9781424441211
ISSN 1557-170X
Start page 2837
End page 2840
Total pages 4
Collection year 2012
Language eng
Abstract/Summary In this study, an electromagnetics-based inverse sensitivity mapping method is introduced for applications in high field MRI. Instead of using simplistic numerical approximations, the sensitivity of the radio-frequency coil was determined through a field approach by using iterative optimization. The current study is an extension to previous studies on the inverse method, which has restricted itself to low-field applications due to the use of the Biot-Savart integration to account for the H field calculations. In the current study, full-wave solutions to the Maxwell's equations based MOM/FEM hybrid algorithm were employed to provide H field evaluation. It is demonstrated that the proposed method is able to produce high-fidelity sensitivity estimation which result in images with significantly less artefact power.
Q-Index Code E1
Q-Index Status Confirmed Code
Institutional Status UQ

 
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Created: Thu, 15 Dec 2011, 00:24:44 EST by Mr Jin Jin on behalf of School of Information Technol and Elec Engineering