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Abstract #2515

Wirelessly controlled stand-alone automatic RF tuning and matching system for preclinical imaging at 7T

Sri Kirthi Kandala1 and SungMin Sohn2
1Biomedical Engineering, Arizona State Universirty, Tempe, AZ, United States, 2Biomedical engineering, Arizona State University, Tempe, AZ, United States

Impedance matching of RF coils during MR imaging is crucial to improve SNR and would enhance power transfer efficiency for transmit coil reducing wastage of RF power. This work focuses on presenting a stand-alone system with wireless Automatic Tuning and Matching system (ATM) for transmit (Tx)-only and receive (Rx)-only coils separately. We present separate Tx-only and Rx-only coils with high power and low power ATMs respectively along with a self-triggering circuit for Rx coil decoupling while high power Tx signal is active.

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