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Abstract #4280

High Speed Serial ASK Signal Integrity for Wireless MRI

Greig Cameron Scott1, Audrey Chan2, Wonje Lee3, Fraser Robb4, John Pauly5, and Shreyas Vasanawala6
1Electrical Engineering, Stanford University, Stanford, CA, United States, 2Victoria University of Wellington, Wellington, New Zealand, 3Pediatric Radiology, Stanford University, Stanford, CA, United States, 4GE Healthcare, Aurora, OH, United States, 5Stanford University, Stanford, CA, United States, 6Radiology, Stanford University, Stanford, CA, United States

A major challenge of wireless MRI is how to implement the data link. Here, progress is made using amplitude shift keyed diode ring modulators, serializer/deserializer components and clock/data recovery to demonstrate bit rate transmissions up to 600 Mbps. High gain biquad reflector antennas and UWB antennas are compared for carriers between 3 and 5 GHz. These prototypes also demonstrate bandwidth limitations and electrodynamic interactions in a birdcage test bore on wireless signal integrity. Even if dedicated wireless ICs are not possible, we believe components exist to make an easily integrated modulator for MRI wireless data transmission.

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