Title :
A Broadside-Split-Ring Resonator-Based Coil for MRI at 7 T
Author :
Freire, M.J. ; Lopez, M.A. ; Meise, F. ; Algarin, J.M. ; Jakob, P.M. ; Bock, M. ; Marques, Renata
Author_Institution :
Dept. of Electron. & Electromagn., Univ. of Seville, Seville, Spain
Abstract :
A coil design termed as broadside-coupled loop (BCL) coil and based on the broadside-coupled split ring resonator (BC-SRR) is proposed as an alternative to a conventional loop design at 7T. The BCL coil has an inherent uniform current which assures the rotational symmetry of the radio-frequency field around the coil axis. A comparative analysis of the signal-to-noise ratio provided by BCL coils and conventional coils has been carried out by means of numerical simulations and experiments in a 7T whole body system.
Keywords :
biomedical MRI; coils; microstrip resonators; numerical analysis; BC-SRR; BCL coil; MRI; broadside-coupled loop coil; broadside-coupled split ring resonator; broadside-split-ring resonator-based coil; coil axis; coil design; comparative analysis; conventional coils; conventional loop design; inherent uniform current; magnetic flux density 7 T; numerical simulation; radiofrequency field; rotational symmetry; signal-to-noise ratio; whole body system; Capacitance; Capacitors; Coils; Magnetic resonance imaging; Metamaterials; Radio frequency; Signal to noise ratio; Magnetic resonance imaging (MRI); meta materials; Computer Simulation; Magnetic Resonance Imaging; Phantoms, Imaging; Signal-To-Noise Ratio;
Journal_Title :
Medical Imaging, IEEE Transactions on
DOI :
10.1109/TMI.2013.2253488
