Abstract #2180

Wireless Probe Detection For Auxiliary Control Syncing

Jonathan Y Lu¹, Thomas Grafendorfer², Fraser Robb³, John M Pauly¹, and Greig C Scott¹

¹Dept of Electrical Engineering, Stanford University, Stanford, CA, United States, ²Advanced Coils, GEHC Coils, Stanford, CA, United States, ³GE Healthcare, Aurora, OH, United States

We aim to demonstrate methods to wirelessly probe the MRI transmit state without access to the internal MRI hardware itself. We demonstrate two forms of RF pulse detection during a scan with simple magnetic field probes: 1) an electrical link undergoing peak detection and 2) an optical link. We process this signal as an external hardware interrupt into a microcontroller, which can be easily used to bias a coil between receive and transmit mode. Such a setup can be useful in future wireless receive coils.

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