We are developing radiation-compatible, high-channel RF coil arrays for advanced imaging applications in MR-guided radiation therapy (MRgRT).
Radiation-compatible, high-channel RF coil arrays are necessary for the development and application of advanced imaging techniques in MRgRT, but no such coils are currently available. At present, clinical MRgRT-compatible coils are constrained to eight elements per row, while the state-of-the-art research coils have at most two rows. Such limited coil architectures compromise signal-to-noise ratio (SNR) and inhibit parallel imaging capabilities.
Our work has shown that these limitations can be broken with the use of remote circuitry, an approach that separates radiation-opaque components from the radiation field while maintaining electrical connectivity to coil elements in the imaging volume through extended transmission lines. The remote circuit provides essential functions including tuning, impedance matching, active detuning, and preamplifier decoupling while preserving radiation transparency. Building on successful proof-of-concept three-row and four-row arrays, our team is designing and optimizing a high-channel coil array with up to 32 elements.
Project Lead
We acknowledge support from the following NIH grant: NIH P41 EB017183.
Researchers at the Center for Biomedical Imaging at NYU Langone Health develop transformative imaging technologies to advance basic science and address unsolved clinical problems.
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