The equivalent magnetizing method applied to the design of gradient coils for MRI

Sanchez Lopez, H, Liu, F. and Crozier, S. (2008). The equivalent magnetizing method applied to the design of gradient coils for MRI. In: Dumont, G. and Galiana, H., 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, (2805-2808). 20-24 August 2008. doi:10.1109/IEMBS.2008.4649785


Author Sanchez Lopez, H
Liu, F.
Crozier, S.
Title of paper The equivalent magnetizing method applied to the design of gradient coils for 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
Journal name Proceedings of the 30th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS'08 - "Personalized Healthcare through Technology"   Check publisher's open access policy
Series Proceedings of the 30th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS'08 - "Personalized Healthcare through Technology"
Place of Publication Piscataway, NJ, United States
Publisher IEEE
Publication Year 2008
Year available 2008
Sub-type Fully published paper
DOI 10.1109/IEMBS.2008.4649785
Open Access Status Not yet assessed
ISBN 9781424418145
9781424418152
ISSN 1557-170X
Editor Dumont, G.
Galiana, H.
Start page 2805
End page 2808
Total pages 4
Language eng
Abstract/Summary This paper presents a new method for the design of gradient coils for Magnetic Resonance Imaging systems. The method is based on the equivalence between a magnetized volume surrounded by a conducting surface and its equivalent representation in surface current/charge density. We demonstrate that the curl of the vertical magnetization induces a surface current density whose stream line defines the coil current pattern. This method can be applied for coils wounds on arbitrary surface shapes. A single layer unshielded transverse gradient coil is designed and compared, with the designs obtained using two conventional methods. Through the presented example we demonstrate that the generated unconventional current patterns obtained using the magnetizing current method produces a superior gradient coil performance than coils designed by applying conventional methods.
Subjects E1
861502 Medical Instruments
090303 Biomedical Instrumentation
Keyword Algorithms
Computer Simulation
Electromagnetic Fields
Equipment Design
Image Enhancement
Image Processing
Computer-Assisted
Magnetic Resonance Imaging
Statistical models
Theoretical models
Q-Index Code E1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Conference Paper
Sub-type: Fully published paper
Collections: 2009 Higher Education Research Data Collection
School of Information Technology and Electrical Engineering Publications
 
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Created: Thu, 16 Apr 2009, 21:25:43 EST by Ms Kimberley Nunes on behalf of School of Information Technol and Elec Engineering