An orthogonal-based decoupling method for MRI phased array coil design

Li, Bing Keong, Wang, Hua, Trakic, Adnan, Engstrom, Craig, Weber, Ewald and Crozier, Stuart (2012) An orthogonal-based decoupling method for MRI phased array coil design. NMR in Biomedicine, 25 6: 835-842.


Author Li, Bing Keong
Wang, Hua
Trakic, Adnan
Engstrom, Craig
Weber, Ewald
Crozier, Stuart
Title An orthogonal-based decoupling method for MRI phased array coil design
Journal name NMR in Biomedicine   Check publisher's open access policy
ISSN 0952-3480
1099-1492
Publication date 2012-06
Year available 2011
Sub-type Article (original research)
DOI 10.1002/nbm.1799
Volume 25
Issue 6
Start page 835
End page 842
Total pages 8
Place of publication Oxford, U.K.
Publisher John Wiley & Sons
Collection year 2013
Language eng
Formatted abstract A new 2 T 3-element orthogonal knee coil array based on the three-dimensional orthogonality principle was designed, constructed and used in a series of pilot magnetic resonance imaging (MRI) studies on a standardized phantom, and human and pig knees. The coil elements within this new coil array are positioned orthogonal to one another allowing problematic mutual coupling effects to be minimized without the use of any passive mutual decoupling schemes. The proposed method is appropriate for the design of transmit, receive and/or transceive radiofrequency (RF) coil arrays for applications in animal/human MRI and spectroscopic studies. Experimental results demonstrated that the 3-element orthogonal knee coil array could be angled arbitrarily, including at 90°, relative to the main static magnetic field (B0) whilst maintaining normal operation with minimal loss of efficiency and functionality. Initial trials with a pig knee specimen further showed that the greatest signal intensity in the patellar ligament (parallel collagen fibres) was observed when the orthogonal knee coil array and the pig knee specimen were angled at ~55° to B0, which may have potential uses in magic angle MR applications.
Keyword MRI phased array coil
Orthogonal RF coil
Magic angle MRI
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes Published online in Wiley Online Library: 2 December 2011.

 
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Created: Wed, 23 May 2012, 07:15:10 EST by Craig Engstrom on behalf of School of Information Technol and Elec Engineering