Influence of the Human Body Mass in the Open-air MRI on Acoustic Noise Spectrum

Authors

  • Jiri Pribil Institute of Measurement Science Slovak Academy of Sciences
  • Anna Pribilová Institute of Electronics and Photonics Faculty of Electrical Engineering & Information Technology Slovak University of Technology Bratislava
  • Ivan Frollo Institute of Measurement Science Slovak Academy of Sciences

DOI:

https://doi.org/10.21014/acta_imeko.v5i3.305

Abstract

The paper analyses changes in spectral properties of the acoustic noise when the examined person lies in the scanning area of the open-air magnetic resonance imager (MRI) and consequently the holder of the lower gradient coils is loaded with the mechanical mass represented by the person’s weight. The acoustic noise pressure level is mapped in the MRI neighborhood, too. Obtained results of spectral analysis will be used for design of a correction filter to suppress the noise in the simultaneously recorded speech signal for 3D modelling of the human vocal tract.

Author Biography

Jiri Pribil, Institute of Measurement Science Slovak Academy of Sciences

Department of Imaging Methods,

signal and image processing, speech analysis and synthesis, tex-to-speech systems

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Published

2016-11-04

Issue

Vol. 5 No. 3 (2016)

Section

Research Papers

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