Title
Acoustic noise analysis in echo planar imaging: multicenter trial and comparison with other pulse sequences
Abstract
The purpose of this study was to evaluate acoustic noise in echo planar imaging (EPI) at various magnetic resonance imaging (MRI) centers and to compare EPI acoustic noise with that in other fast pulse sequences. The authors measured A-weighted root-mean-square sound pressure levels and peak impulse sound pressure levels for EPI, under the same conditions, in eleven clinical super-conducting MRI systems. They also compared sound pressure levels for the EPI and six different pulse sequences and analyzed the acoustic noise spectra. Sound pressure levels during the use of the EPI differed greatly among institutions. Moreover, sound pressure levels of the EPI were not significantly different from those of other fast pulse sequences and were within permissible noise exposure levels. In comparison to other fast sequences, the EPI had significantly greater acoustic noise in the high-octave band frequency.
Year
DOI
Venue
1999
10.1109/42.796286
IEEE transactions on medical imaging
Keywords
Field
DocType
acoustic noise,biomedical MRI,MRI,acoustic noise analysis,acoustic noise spectra,echo planar imaging,high-octave band frequency,magnetic resonance imaging centers,medical diagnostic imaging,multicenter trial,pulse sequences,sound pressure levels
Noise,Sound pressure,Echo-planar imaging,Pulse sequence,Impulse (physics),Pulse (signal processing),Bruit,Acoustics,Mathematics,Magnetic resonance imaging
Journal
Volume
Issue
ISSN
18
8
0278-0062
Citations 
PageRank 
References 
1
0.65
0
Authors
4
Name
Order
Citations
PageRank
Tosiaki Miyati122.38
Banno, T.210.65
Hiroshi Fujita311824.65
M. Mase4315.66