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Study about the consequences of different sound pressure levels emitted by magnetic resonance imaging equipment

ABSTRACT

Purpose:

to measure the sound pressure level emitted by the magnetic resonance imaging in operation and check the auditory sensations described by individuals submitted to this examination after it has been carried out.

Methods:

the measurement of the deep noise was conducted during image formation in this examination, by means of sound pressure level meter (decibel meter) and the application of a questionnaire for the purpose of checking the hearing sensations presented by those individuals after the exam has been carried out. This procedure was applied to sixty individuals submitted to a magnetic resonance imaging of the skull.

Results:

it was found that the average of sound pressure level presented while the examination was carried out was lower than the level of intensity considered being a risk for auditory damages. However sensations like tinnitus, anxiety, auricular plenitude and relief after the end of the examination were mentioned by the individuals after it had been carried out.

Conclusion:

the use of hearing protectors is relevant as a preventive measure for controlling the level of noise that affects the individual's cochlea, thus minimizing the physical and psycho-social effects resulting from noise exposure.

Keywords:
Noise; Magnetic Resonance Spectroscopy; Protective Devices; Hearing Loss; Hearing

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