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Abstract #4369

Transmit-Only Receive-Only Operation of a Switch-Tuned 13C-1H Radiofrequency Coil for Improved in Vivo 13C Spectroscopy

Heeseung Lim1, Kundan Thind1, Francisco M. Martinez-Santiesteban1, Timothy J. Scholl1, 2

1Medical Biophysics, Western University, London, Ontario, Canada; 2Imaging Research Laboratories, Robarts Research Institute, Western University, London, Ontario, Canada

This work reports the integration of a 13C surface receive coil with a switched-tuned 13C-1H birdcage RF coil to enable combined transmit-only receive-only (TORO) operation to improve sensitivity for in vivo 13C spectroscopy. The 13C-1H birdcage coil is operated in 1H mode as a transmit-receive (TR) volume coil for anatomical imaging. Those images are subsequently co-registered with chemical shift imaging data obtained from 13C TORO operation. The TORO combination produces four times higher 13C signal-to-noise ratio than the switched-tuned RF coil alone operating in TR mode.