Meeting Banner
Abstract #0724

Magnetic Walls for RF Coil Elements Decoupling

Mohamed Ahmed Abou-Khousa1, Joseph S. Gati1, Ravi Menon1, 2

1Robarts Research Institute, Western University, London, Ontario, Canada; 2Dept. of Medical Biophysics, Western University, London, Onatrio, Canada

Novel and essentially lossless RF array coil elements decoupling method is introduced and analyzed. The proposed method is based on utilizing artificially engineered magnetic walls to effectively isolate the array elements. The efficacy of the decoupling method is demonstrated with 7T linear Tx/Rx visual cortex array for high-resolution fMRI. The method can be used quite systematically to decouple transmit-, receive- as well as transceive-arrays.

Keywords

absorbing absorption achieve adjacent although around array arrays assessed axial berg biophysics black blank board channels close coefficient coefficients coil coils combined compact complex component configurations confined constant copper correlation cortex coupled coupling currently decay decouple decoupled decoupling dept designed desired destructive dielectric effectively efficient efficiently element elements embedding enabled essentially etched evaluated field fields final forced form frequencies frequency furthermore hole human identical imaginary inch independence indicating individual inductance inserted interfered interference intrinsically layer layers lends length linear loop loops lossless made magnitude many measuring medical merits metallic miniaturized mounting mutual needs noise occurs optimization overcome part past performance permeability pitch placed printed problem production proposed prototype proximity realization receive reduce removes renders resolution resonating resonators response returns rise rogers scanner screwed shimming side spatially square strong structure studies substrate substrates synthesized tackle together transmission transmit trapped tuned turns uniform utilizing various virtually visual wall walls western wide width yield