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Highly-Flexible Highly-Decoupled 1H RF Coils for MR imaging of the lungs as utilized within a 129Xe Transmit-Receive RF Coil at 1.5 T
Madhwesha Rama Rao1, Fraser J Robb1,2, Victor Taracila2, Weixing Zhang2, and Jim M Wild1
1University Of Sheffield, Sheffield, United Kingdom, 2GE Healthcare, Aurora, OH, United States
In this work, we demonstrate multinuclear hyperpolarised 129Xe and 1H lung imaging using sixteen receive only highly-flexible highly-decoupled 1H RF coils fixed on to a flexible printed circuit board based transmit-receive 129Xe RF coil.
Figure 2: Demonstration of multinuclear lung imaging with HP 129Xe and 1H, where in 1H RF coil array was built using HFHD RF coils. (a) Photograph of 16 channel HFHD RF coil nested within xenon transmit-receive RF coil, (b) 1H lung MRI, volunteer: healthy normal, male, 54 years and (c) HP 129Xe gas MRI, volunteer: healthy normal, male, 26 years.
Figure 1: Comparison of sensitivity performance between a typical RF coil with lumped capacitor to HFHD coil. (a) Photograph of typical RF coil with lumped capacitor, (b) Photograph of illustration of HFHD RF coil, and (c) Sensitivity performance of both typical RF coil and HFHD RF coil throughout non-proton frequencies, relative sensitivity or power level at non-proton frequency.