A new decoupling method for quadrature coils in magnetic resonance imaging.

School of Information Technology and Electrical Engineering, University of Queensland, Brisbane QLD 4072, Australia.
IEEE Transactions on Biomedical Engineering (Impact Factor: 2.35). 11/2006; 53(10):2114-6. DOI: 10.1109/TBME.2006.881783
Source: PubMed

ABSTRACT A powerful decoupling method is introduced to obtain decoupled signal voltages from quadrature coils in magnetic resonance imaging (MRI). The new method uses the knowledge of the position of the signal source in MRI, the active slice, to define a new mutual impedance which accurately quantifies the coupling voltages and enables them to be removed almost completely. Results show that by using the new decoupling method, the percentage errors in the decoupled voltages are of the order of 10(-7) % and isolations between two coils are more than 170 dB.

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