Meeting Banner
Abstract #0761

A Non-Magnetic Staggered Commutation Based Circulator to Achieve Time-Efficient Simultaneous Transmit and Receive (STAR) MRI

Hazal Yuksel1, Lance DelaBarre2, Djaudat Idiyatullin3, Julie Kabil4, Gregor Adriany3, Sung-Min Sohn5, Harish Krishnaswamy 1, John Thomas Vaughan 4, and Michael Garwood3
1Electrical Engineering, Columbia University, New York, NY, United States, 2Center for Magnetic Resonance Research, University of Minnesota, Minneapolis, MN, United States, 3University of Minnesota, Minneapolis, MN, United States, 4Columbia University, New York, NY, United States, 5Arizona State University, Tempe, AZ, United States

Traditional MRI relies on the temporal separation of the receiver (RX) and transmitter (TX) to solve the problem of self-interference. Often, the TX signal is billions of times larger than the RX signal, and T/R switches are used so the TX does not saturate or destroy the RX. This leads to an inefficient method of acquiring imaging data for especially fast decaying signals. We propose a magnetic-free, PCB based circulator to remove the T/R switch and achieve simultaneous transmit and receive MRI. We present images of a phantom acquired with a continuous SWIFT sequence to validate the concept.

This abstract and the presentation materials are available to 2020 meeting attendees and eLibrary customers only; a login is required.

Join Here