tympanogram

tympanogram

 [tim´pan-o-gram″]
1. a graphic representation of the relative compliance and impedance of the tympanic membrane and ossicles of the middle ear obtained by tympanometry.
2. a test using tympanometry to measure how easily the tympanic membrane vibrates back and forth and at what pressure the vibration is easiest. The middle ear is normally filled with air at a pressure equal to that of the surrounding atmosphere. If it is filled with fluid, the membrane will not vibrate properly and the line on the tympanogram will be flat; if it is filled with air but at a higher or lower pressure than the surrounding atmosphere, the line on the graph will be shifted in position. A tympanogram is a quick and easy test; a probe is placed up against the ear canal like an ear plug and the equipment automatically makes the measurements.

tym·pan·o·gram

(tim'pă-nō-gram),
The printout of immittance showing the stiffness or the compliance of the middle ear structures as it varies with changes in pressure within the external auditory canal.

tympanogram

/tym·pa·no·gram/ (tim´pah-no-gram″) a graphic representation of the relative compliance and impedance of the tympanic membrane and ossicles of the middle ear obtained by tympanometry.

tympanogram

[timpan′əgram]
a graphic representation of the acoustic impedance and air pressure of the middle ear and the mobility of the tympanic membrane, measured as part of the audiological test battery. In the normal middle ear, the air pressure is the same as the atmospheric pressure, as shown by a peak in the middle of the tympanogram. Various middle ear pathologies such as otitis media, otosclerosis, or tympanic membrane perforations each yield distinctive tympanograms. See also acoustic impedance.

tym·pan·o·gram

(tim'pă-nō-gram)
A visual depiction (e.g., a printout) of the relative compliance and impedance of the structures of the middle ear in response to pressure changes in the external ear canal.

tympanogram

a graphic representation of the relative compliance and impedance of the tympanic membrane and ossicles of the middle ear obtained by tympanometry.
References in periodicals archive ?
Audiometry revealed a unilateral conductive hearing loss with a 40-dB air-bone gap and a type B low tympanogram on the left.
Graphics: Tympanogram & reflex tests are displayed live while being
Her audiogram, performed post-operatively, showed mild to severe mixed hearing loss on the right and normal to severe sensorineural hearing loss on the left, with large volume type B tympanogram on the right side.
Tympanogram showed type B with failed auditory brainstem response on the affected side and normal hearing on the right side.
Patients in the control group had normal tympanogram and audiogram values and did not present any previous episode of otitis.
Next the immittance test battery comprising of tympanogram and acoustic reflex threshold were obtained in each ear separately for each patient.
The audiologist may produce an audiogram (a graph that shows a person's hearing sensitivity) and a tympanogram (a graph that shows how well the middle ear functions to conduct sound).
Simply stated, the tympanogram is obtained by presenting a tone into the ear canal and recording the movement of the ear drum and the middle ear bones.
Rosenberg says diagnosis of the condition can be done by a child's pediatrician right in the office by looking through a scope, by testing the mobility of the eardrum with a tympanogram and, if the child is old enough, a hearing test.
The stapedial reflex was absent, with a B-type tympanogram on the affected side.
There was negative pressure on the left and a flat tympanogram on the right.
Patients were diagnosed with an MEE if an effusion was detected on otoscopic examination or if tympanometry revealed a type B tympanogram with an ear canal volume of 0.