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The noise generated by MRI equipment is transmitted to the walls floor and ceiling either through the air (a) or the supports of the MRI equipment (c) . It is then propagated through the structure of the building and radiated as airborne sound from the walls, floors and ceilings of other rooms (b). In the case of airborne noise, the acoustic energy transferred to the building structure can be reduced by soundproofing the surfaces with mineral wool or by installing double (cavity) walls. The mounting of the MRI equipment must be adequately sprung to minimise the transmission of vibration via the supports of the MRI equipment to the floor of the MRI room.
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