In this work, we measured the acoustic frequency response function of an MRI scanner. The response was then used to design arbitrarily shaped gradient waveforms that minimize the predicted acoustic noise output of the sequence. Two minimization functions were tested and compared to the conventional sequence with two different slew rates. The method was used to generate a GRE sequence with 31% reduced acoustic output for a 17% increase in scan time or 16% reduced acoustic output compared to the slew rate derated sequence, both with no difference in image quality.
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