Please use this identifier to cite or link to this item: https://doi.org/10.1109/TBCAS.2012.2194144
Title: Stacked phased array coils for increasing the signal-to-noise ratio in magnetic resonance imaging
Authors: Liang, D.
Hui, H.T. 
Yeo, T.S. 
Li, B.K.
Keywords: Experimental method
magnetic resonance imaging (MRI)
mutual coupling
phased coil array
signal combining
signal-to-circuit noise ratio (SCNR)
Issue Date: 2013
Source: Liang, D., Hui, H.T., Yeo, T.S., Li, B.K. (2013). Stacked phased array coils for increasing the signal-to-noise ratio in magnetic resonance imaging. IEEE Transactions on Biomedical Circuits and Systems 7 (1) : 24-30. ScholarBank@NUS Repository. https://doi.org/10.1109/TBCAS.2012.2194144
Abstract: A new concept of using a stacked phased coil array to increase the signal-to-circuit noise ratio (SCNR) in magnetic resonance imaging (MRI) is introduced. Unlike conventional phased coil arrays, the proposed stacked phased coil array is constructed by stacking the coil elements closely together in the vertical direction. Through a proper combination of the coil terminal voltages, the SCNR is shown to increase with the square root of the number of coil elements. A prototype two-element array is constructed and an experimental method is designed to determine the combiner coefficients in a simulated MRI electromagnetic field environment. The experimental results show that the mutual coupling effect among the array coils can be totally removed and the combiner output voltage increases with the number of coil elements. This demonstrates the feasibility of the proposed method. © 2012 IEEE.
Source Title: IEEE Transactions on Biomedical Circuits and Systems
URI: http://scholarbank.nus.edu.sg/handle/10635/57513
ISSN: 19324545
DOI: 10.1109/TBCAS.2012.2194144
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