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Abstract #1600

FPGA Microwave Link Testbed for Wireless MRI

Ege Turan1, Fraser Robb2, Shreyas Vasanawala3, John Pauly1, and Greig Cameron Scott1
1Electrical Engineering, Stanford University, Stanford, CA, United States, 2GE Healthcare, Aurora, OH, United States, 3Radiology, Stanford University, Stanford, CA, United States

Synopsis

Keywords: Hybrid & Novel Systems Technology, Hybrid & Novel Systems Technology, Wireless

Motivation: MRI coil arrays are now burdened by cable and connector limitations that inhibit conformability.

Goal(s): We seek a low cost approach to wireless MRI coil data links that is easy to scale with multiple array subsections. We demonstrate feasibility of a FPGA-based short-range microwave wireless serial link.

Approach: A complete end to end link was constructed for link distances of 20cm. A low power FPGA sent scrambled serial data with embedded start/stop bits to a receiver with FPGA recovery of the data.

Results: This complete demo could achieve over 200Mbps with a simple FPGA, mixer and oscillator.

Impact: Cutting the cord of MRI arrays has been a long-term goal of MRI engineering. It would eliminate the mechanical and RF pitfalls of the cable, and enable more conformable and wearable receive arrays.

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