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Abstract #0422

Micro-Electromechanical Systems (MEMS) Based RF-Switches in MRI a Performance Study

Miguel Fuentes1, Ewald Weber1, Stephen Wilson1, Bing Keong Li1, Stuart Crozier1

1The School of Information Technology and Electrical Engineering, The University of Queensland, Brisbane, Queensland, Australia

This work presents a method of controlling and switching multiple receiver coil-arrays in a manner that will reduce power consumption, relax cabling requirements and increase overall SNR through the use of micro-electromechanical systems (MEMS) RF switches. We have focused on parameters relevant to T/R switching applications in MR coil arrays. The MEMS devices evaluated here show favourable, quantifiable performance on the bench and in MR environment testing, and are found to be acceptable for use in multi-element coil switching roles.