1 University of Minnesota, Minneapolis
Multifrequency tympanometry has emerged as a clinically feasible test with the advent of computer-controlled systems that can store and analyze complex immittance components at multiple probe tone frequencies. The theoretical basis for understanding multifrequency tympanometry has existed for years, but the diagnostic utility of data obtained at frequencies higher than 660 Hz needs further clarification. In this short course, the Vanhuyse model for the analysis of multifrequency tympanograms is discussed and clinical examples illustrating the usefulness of the model are presented. Normative data are provided for adults and children, and various methods for data acquisition and measurement of resonant frequency are presented.
Key Words: multifrequency, tympanometry, infants, adults, middle ear disorders
Submitted on March 3, 1992
Accepted on April 17, 1992
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