Tympanometry
Tympanometry
Tympanometry (pronounced: tim-pan-om-etry) is a non-invasive test used to assess the condition of the middle ear and mobility of the eardrum (tympanic membrane) and the conduction bones by creating variations of air pressure in the ear canal.
Etymology
The term "Tympanometry" is derived from the Greek words "tympanon" meaning drum, and "metron" meaning measure.
Procedure
Tympanometry is performed by inserting a probe into the ear canal. This probe changes the pressure in the ear, generates a tone, and measures the responses of the ear to these changes. The results are then recorded on a graph called a tympanogram.
Uses
Tympanometry is used to detect disorders such as otitis media, Eustachian tube dysfunction, perforation of the tympanic membrane, and presence of fluid in the middle ear. It is also used to evaluate the functional status of a tympanostomy tube and to monitor the treatment of middle ear diseases.
Related Terms
- Audiometry: A branch of audiology and the science of measuring hearing acuity.
- Otoscopy: A diagnostic procedure to examine the ear canal and tympanic membrane.
- Tympanic Membrane: Also known as the eardrum, it is a thin membrane that separates the external ear from the middle ear.
- Eustachian Tube: A tube that links the nasopharynx to the middle ear, which is responsible for equalizing ear pressure.
- Otitis Media: An infection or inflammation of the middle ear.
- Tympanostomy Tube: A small tube inserted into the eardrum to allow air to pass through into the middle ear.
External links
- Medical encyclopedia article on Tympanometry
- Wikipedia's article - Tympanometry
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