Abstract #0542

The first demonstration of simultaneous transmit and receive MRI in vivo

Sung-Min Sohn¹, J. Thomas Vaughan¹, Michael Garwood¹, and Djaudat Idiyatullin¹

¹Center for Magnetic Resonance Research, University of Minnesota, Minneapolis, MN, United States

This is the first demonstration of in vivo human MR imaging with simultaneous transmit and receive using continuous mode SWIFT at 4T. Due to a large RF power difference between Tx and Rx working at the same frequency, the difficulties to obtain the high and stable Tx/Rx isolation, and the sensitivity of the Tx/Rx isolation to the loading conditions, in vivo images using the simultaneous RF pulse transmission and signal acquisition have not been reported. This work proposed the simultaneous Tx/Rx system with highly minimized effects from variation of coil loading, which allowed us to acquire the first in vivo images with continuous SWIFT at 4T.

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