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Experimental studies on the acoustic properties of mastoid cavities

Published online by Cambridge University Press:  29 June 2007

N. S. Tolley ,
K. Ison  and
A. Mirza
N. S. Tolley*
Affiliation:
The Royal National Throat, Nose and Ear Hospital, Gray's Inn Road, London WC1X 8DA.
K. Ison
Affiliation:
The Royal National Throat, Nose and Ear Hospital, Gray's Inn Road, London WC1X 8DA.
A. Mirza
Affiliation:
The Royal National Throat, Nose and Ear Hospital, Gray's Inn Road, London WC1X 8DA.
*
Mr N. S. Tolley, Flat 9, Belle Vue Court, Belle View Gardens, Brighton BN2 2AN
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Abstract

This study investigated the effects of open-mastoid surgery upon ear canal resonance. In particular an attempt was made to alter resonant properties by obliterating each cavity with silastic foam. The results from this study showed that open-mastoid surgery significantly decreased resonant frequency without producing an effect upon either the peak amplitude or the quality of the resonant peak as defined by the Q-factor.

Restoring the natural resonance properties of an operated ear, if indicated, is likely to be a difficult objective to achieve in surgical terms.

Keywords

Mastoid surgeryAcoustics
Type
Main Articles
Information
The Journal of Laryngology & Otology , Volume 106 , Issue 7 , July 1992 , pp. 597 - 599
Copyright
Copyright © JLO (1984) Limited 1992

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References

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