Introduction to Tympanometry | 合法醫療器材資訊網

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Tympanometry is a method of testing the function of the middle ear. Unlike audiometry[1], it does not test the ear’s sensitivity to sound or the hearing threshold of the patient. Instead, it is used to detect if sound, when presented to the ear canal, travels through the middle ear space effectively.

This information is used clinically to determine if the middle ear space is functioning correctly or if there is a condition affecting the transfer of sound through the middle ear to the cochlea. Conditions such as middle ear effusions and eustachian tube dysfunction are common pathologies which you can detect with tympanometry.

The equipment used to perform tympanometry is called a tympanometer[2]. There are a variety of styles and types of tympanometers, but at their most basic form they have five common elements: