Meeting Banner
Abstract #2780

Linear Phase Non-Resonant Hybrid Lumped Element / Twisted Microstrip RF Transmit Coil

Rock Hadley1, Jim Stack2, John Roberts, Robb Merrill, Dennis Parker, Glen Morrell

1Radiology, University of Utah, Salt Lake City, UT, United States; 2Remcom Inc

We present a novel hybrid non-resonant RF transmit coil design which uses a twisted microstrip configuration and distributed lumped capacitors to acheive linear phase of the magnetic field along the long axis of the coil. This coil may be useful for parallel transmission and gradientless imaging.

Abstract PDF E-Poster Video

Keywords

according achieve achieved achieves acknowledge acknowledgments amount amplitude angular around array axial axis birdcage black blue capabilities capacitance capacitors caps central characteristic characterization circularly city coil coils combining component conductor conductors consisting created cylinder degrees design designed designs desired determine determined deviation diameter distributed distribution domain effective eight electrical element elements essentially evenly excitation feasibility feed fidelity field fields formed forming foundation frequencies frequency generate generated glen good gradient greater green ground helpful hybrid impedance impedances increasing indicates individual iris john lake length limiting linear linearity load long lumped made manner maps minimal ohms optimal overall parallel parker pitch placed plot polarized positions previous profile profiles quadrature radiology randy reduced resistors resonant respectively rock salt selective sensitivity seven sharp simulate simulated simulation simulations slice software source spaced spiral straight substrate support surface terminate theory trans transmission transmit transverse traveling twist twisted twisting uniform useful variation varied voltage volume wave wide width