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Abstract #2749

Wireless Magnetic Field Monitoring

Matthew J. Riffe1, Daniel Neumann2, Colin Blumenthal3, Gregory Lee4, Nicole Seiberlich1, Mark A. Griswold, 14

1Biomedical Engineering, Case Western Reserve University, Cleveland, OH, United States; 2Research Center for Magnetic Resonance Bavaria (MRB), Wuerzburg, Germany; 3Electrical and Computer Engineering, Ohio State University, Columbus, OH, United States; 4Radiology, Case Western Reserve University, Cleveland, OH, United States

For improved performance, magnetic field monitoring (MFM) requires an array of hetero-nuclear transceiver NMR probes, which requires a separate specialized multi-frequency transceiver system to acquire the MFM signals. We propose that a wireless magnetic field monitoring system would allow the hetero-nuclear MFM signals to be collected with the narrow-band 1H MRI receivers, eliminating the need for this extra transceiver. To demonstrate feasibility, initial results from a four-probe receive-only wireless MFM system are presented. A spiral TrueFISP trajectory with a 256kHz bandwidth is measured with the wireless MFM system, and phantom images are reconstructed using the measured trajectory.