. 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

Table 1.

List of typical values of simulation results

	Overall SPL	Overall Reduction	Maximum Reduction	Max. Reduction Frequency
Uncontrolled	117.8 dB
Feedback	112.6 dB	5.2 dB	15.7 dB	1312 Hz
Feedforward	110.2 dB	7.6 dB	19.3 dB	1148 Hz
Hybrid	106.9 dB	10.9 dB	19.6 dB	1148 Hz