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Abstract #3459

AeroCoil: A non-electric switchable RF coil for 1H and 2H imaging

Chavalchart Herabut1, Bryan Rangel Valle1, Samantha McClendon1, Dakota Ortega2, Scott Beeman1, Vikram Kodibagkar1, and Sung-Min Sohn1
1School of Biological and Health Systems Engineering, Arizona State University, Tempe, AZ, United States, 2KE Biosciences Preclinical Imaging Core, Arizona State University, Tempe, AZ, United States

Synopsis

Keywords: Non-Array RF Coils, Antennas & Waveguides, Non-Array RF Coils, Antennas & Waveguides, X-nuclear Imaging

Motivation: While PIN diode-based RF switching is the current standard for tunable radio frequency (RF) coils in MRI, the resistive losses of PIN diodes and the interference from electrical bias circuits are well-known to degrade the signal-to-noise ratio (SNR).

Goal(s): We aim to develop a non-electric RF switching technique to address these issues and improve the SNR.

Approach: We introduce AeroCoil, which utilizes air pressure to switch RF coil frequencies. The coil was evaluated through bench testing and MR imaging, compared with single-tuned coils.

Results: AeroCoil demonstrated imaging results without artifacts and significant signal loss.

Impact: By removing electric components, AeroCoil offers a promising advantage for X-nuclei imaging, where tunable RF coils are essential and maximizing SNR is critical.

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