Meeting Banner
Abstract #0549

Impact of coupling in Tx-array coil design for transmit SENSE at 3T

Pei-Shan Wei 1,2 , Michael J. Smith 2 , Christopher P. Bidinosti 3 , Jarod Matwiy 2 , and Scott B. King 1,2

1 Department of Physics and Astronomy, University of Manitoba, Winnipeg, Manitoba, Canada, 2 National Research Council of Canada, Winnipeg, Manitoba, Canada, 3 Department of Physics, University of Winnipeg, Winnipeg, Manitoba, Canada

For determining an optimal Tx-SENSE Tx-array design, we modeled Tx-arrays with and without proper mutual inductance coupling and coil termination to compare accuracy of excitation and SAR. We found that with incorrect coupling models, average SAR was over-estimated by as much as 23%, peak SAR under-estimated by as much as 26%, and peak SAR/Average SAR underestimated by as much as 40%. Therefore, proper coupling in simulations is absolutely necessary for RF coil designers to optimize the Tx-array design for Tx-SENSE applications and for accurate prediction of peak local SAR distribution.

This abstract and the presentation materials are available to members only; a login is required.

Join Here