Abstract #4801

Transmit Array Concepts for Improved MRI Safety in the Presence of Long Conductors

Maryam Etezadi-Amoli¹, Marta Gaia Zanchi¹, Pascal Stang¹, William R. Overall¹, Adam B. Kerr¹, John M. Pauly¹, Greig C. Scott¹

¹Electrical Engineering, Stanford University, Stanford, CA, USA

In this work, we investigate the potential of using transmit arrays to improve the safety of MRI in the presence of conductive guidewires and implant leads. We also demonstrate the feasibility of generalizing the concept of a transmit array to treat the guidewire as an additional array element that can be actively driven with a source of chosen magnitude and phase to cancel out undesired current induced by the imaging protocol.