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. Author manuscript; available in PMC: 2009 Apr 1.
Published in final edited form as: Magn Reson Imaging. 2007 Dec 3;26(3):393–400. doi: 10.1016/j.mri.2007.08.003

Figure 7.

Figure 7

Measured sound signatures of (a) untreated MRI noises, (b) treated MRI noises with the feedback control only, (c) treated MRI noises with the feedforward control only, and (d) treated MRI noises with the hybrid control.