Spectral Analysis of MRI Sound Signal

Magnetic Resonance Imaging (MRI) is a very versatile diagnostic tool for non-invasive analysis of human organ functions, without use of ionizing radiations. Loud operating sound is the major challenge associated with the MRI technology, reaching up to 130dB. This paper analyses and compares the spectral properties of acoustic noise produced in the examination room of the mobile imaging trailer based 1.5 Tesla MRI system, during different scanning sequences of image acquisition. The analysis is useful in understanding the dynamic behavior of the sound generated inside the examination room to develop the noise reduction strategy.

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This work was supported by the Faculty of Mechanical Engineering and Robotics, Department of Mechanics and Vibroacoustics, AGH University of Science and Technology, Al. Adama Mickiewicza 30, 30 - 059 Kraków, Poland from the finance source: 16.16.130.942.