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Abstract #1535

Harvesting Power Wirelessly from MRI Scanners

Kelly Byron1, Fraser Robb2, Shreyas Vasanawala3, John Pauly1, and Greig Scott1

1Electrical Engineering, Stanford University, Stanford, CA, United States, 2GE Healthcare, Aurora, OH, United States, 3Radiology, Stanford University, Stanford, CA, United States

As the number of devices accompanying patients inside the MRI bore increases, so does the need for reliable powering inside the MRI. The high-power B1 field in MRI suggests the capability to harvest power wirelessly from the scanner itself. With high quality factor coils and a high efficiency class-E rectifier we are able to harvest 100s of ┬ÁJ /TR. However, B1 harvesting will generate flip angle banding when harvesting loops are near imaging regions. These banding artifacts increase with increasing coil size and decrease with larger coil loading.

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