PEDIATRICS Vol. 79 No. 5 May 1987, pp. 739-742
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Validity of Acoustic Reflectometry in Detecting Middle Ear Effusion

Daniel M. Schwartz PhD1 and Richard H. Schwartz MD1

1 From the Department of Otorhinolaryngology and Human Communication, University of Pennsylvania, School of Medicine, Philadelphia, and Vienna, Virginia

Pneumootoscopy, tympanometry, and acoustic reflectometry were performed in 256 middleclass children seen in a surburban pediatric office. The results demonstrated that relectometry, when validated by otoscopic findings, detected middle ear effusion with 88% sensitivity and 83% specificity when a cut-off of 5 linear units was used. Corresponding values for tympanometry were 87% and 77.5%. These results are in keeping with those of earlier studies on acoustic reflectometry and demonstrate the usefulness of this simple technique in detecting chronic and acute otitis media with effusion.

Key Words: acoustic reflectometry • middle ear effusion

Submitted on January 21, 1985
Accepted on June 28, 1986




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