Meeting Banner
Abstract #2838

Local SAR Investigations in the Presence of Conductive Media

Craig I. Lawrie1, Xiaoyu Yang1, Tsinghua Zheng1, Matthew Finnerty2, Shinya Handa2, Hiroyuki Fujita2, 3

1Quality Electrodynamics, LLC, Mayfield Village, OH, United States; 2Quality Electrodynamics, Mayfield Village, OH, United States; 3Department of Physics, Case Western Reserve University, Cleveland, OH, United States

The use of a local transmitter coil to reduce local SAR heating is evaluated with regards to MRI imaging in the presence of long conductive media. Simulation results indicate that a local transmitter coil has an SAR advantage due to both smaller electric fields and the ability to fine-tune geometric positioning.

Keywords

active actual advantage affect among amount anatomical annual another apparent applied around audience authors axial behavior beneficial birdcage body built burns catheters certain characteristics clear coil coils collaboration colleagues college commercial computer conditions conductive conductors configuration configurations constant constructed coronal cylindrical dependent described design device diameter dielectric dimensions distribution dramatic electric electrical electrodynamics electroencephalography environment equal equipment especially evaluated expected explained fact field finally firstly form generally generated gradient graphical guided heating highly improve in vivo indicate investigation investigations involving larger leads length little local located long magnitude mechanisms media medium modality model near nears noticeable occurs offset outer outputs pair patient peak perfect performance phantom physics place position positioned possibility power presence proceedings projects quick reasons reduce representative requires reserve responsible risks rotating safety scale scaled secondly several shielding simulated simulation simulations since slice smaller software solution split surface table target transceiver transmit transmitter various vascular visualization visualized western whole whose wire