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Abstract #4929

Multi-channel Array Safety Simulations Validated with Field and Temperature Measurements

Cem Murat Deniz 1,2 , Ryan Brown 1 , Leeor Alon 1,2 , Martijn Cloos 1,2 , Gene Y Cho 1,2 , Graham Wiggins 1 , Christopher M Collins 1,2 , and Daniel K. Sodickson 1,2

1 The Bernard and Irene Schwartz Center for Biomedical Imaging, Department of Radiology, New York University School of Medicine, New York, NY, United States, 2 The Sackler Institute of Graduate Biomedical Sciences, New York University School of Medicine, New York, NY, United States

At high field strength, safety assessment of local multi-channel arrays currently relies on electromagnetic field simulations. Additional verifications of the accuracy of the simulated RF array can be performed using E-field or temperature measurements with additional probes, or with B1+ measurements. In this work, we investigated the use of MR thermometry as a validation tool of the representation of the RF array in simulations. Our results suggest that MR thermometry is a valuable tool readily available in any MR scanner for transmit array safety assessment

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