Acoustic noise may pose a particular problem to specific patient groups (Stansfield, S.A., 1992; Quirk, M.E., et al., 1989) For example, patients with psychiatric disorders may become confused or suffer from increased anxiety (Stansfield, S.A., 1992) because of exposure to loud noise. Sedated patients may experience discomfort in association with high noise levels. In addition, neonates may have adverse reactions to acoustic noise. Reeves MJ, et al. (2010), conducted a study to address this issue, the findings suggested that exposure of the fetus to 1.5-T MRI during the second and third trimesters of pregnancy is not associated with an increased risk of substantial neonatal hearing impairment or cochlear injury. The human ear is a highly sensitive wide-band receiver, with the typical frequency range for normal hearing being between 20-Hz to 20,000-Hz (Cowan,