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Abstract #3089

Accurate Vibroacoustic Simulations in High Performance Gradient Coils

Simone Angela Winkler 1 , Trevor P Wade 2 , Andrew Alejski 2 , Charles McKenzie 2 , and Brian K Rutt 1

1 Dept. of Radiology, Stanford University, Stanford, CA, United States, 2 Robarts Research Institute, The University of Western Ontario, London, Ontario, Canada

We present a comprehensive modeling approach for acoustic noise in MR gradient coils that includes previously neglected but essential factors. Our simulation environment is the most complete developed to date for vibroacoustic gradient coil simulations, incorporating such features as full structural-acoustic coupling. We have used this new simulation environment to model realistic head and body gradient coils, and have used experimental measurements to demonstrate accurate prediction of acoustic and vibration spectra and spectrally averaged levels. This new simulation environment has great potential for the accurate prediction and ultimately reduction of acoustic and vibration levels in high performance gradient systems.

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