An Acoustic Method for Clinical Examination of the Ear

1963 ◽  
Vol 6 (4) ◽  
pp. 303-314 ◽  
Author(s):  
J. Zwislocki
Keyword(s):  
Clinical Examination ◽  
Middle Ear ◽  
Acoustic Impedance ◽  
Acoustic Method ◽  
Suggested Method ◽  
Supplementary Information ◽  
Impedance Measurements ◽  
Acoustic Resistance

An objective acoustic method is suggested for diagnostic examination of the ear. It provides supplementary information to the otoscopic and audiometric examinations. The acoustic method is based on impedance measurements at the eardrum by means of an acoustic bridge that is calibrated in absolute acoustic resistance and compliance units. The obtained values can be read directly on the instrument dials and no time consuming computations are required. The article includes an explanation of the concept of acoustic impedance, an analysis of the middle ear mechanism and of the acoustic effects of middle ear pathologies, in addition to a description of the suggested method.

Impedance Measurements at the Eardrum as an Aid to Diagnosis

1963 ◽  
Vol 6 (4) ◽  
pp. 315-327 ◽  
Author(s):  
Alan S. Feldman
Keyword(s):  
Middle Ear ◽  
Acoustic Impedance ◽  
Rapid Determination ◽  
Clinical Investigation ◽  
Acoustic Method ◽  
Clinical Measurement ◽  
Impedance Measurements ◽  
The Status ◽  
Conductive Hearing

The clinical measurement of acoustic impedance at the eardrum is described. Significant modifications of the traditional Schuster bridge by Zwislocki led to the development of an acoustic impedance bridge that permits a sufficiently reliable and rapid determination of absolute acoustic impedance. The results of clinical investigation with this instrument demonstrate the value of the acoustic method in the evaluation of the status of the middle ear mechanism. The presence of conductive hearing losses due to various middle ear conditions may be detected and differentiated by objective and quantitative impedance measurements.

Acoustic Impedance Measurements in Cleft-Palate Children

1975 ◽  
Vol 40 (1) ◽  
pp. 13-24 ◽  
Author(s):  
Fred H. Bess ◽  
H. Donell Lewis ◽  
David J. Cieliczka
Keyword(s):  
Hearing Loss ◽  
Cleft Palate ◽  
Middle Ear ◽  
Acoustic Impedance ◽  
Pure Tone ◽  
Cleft Lip ◽  
Impedance Measurements ◽  
High Incidence ◽  
Middle Ear Disease

Clinical acoustic impedance findings in a group of 40 children with cleft lip or palate and a group of 20 noncleft children are presented. The cleft subjects exhibited a high incidence of hearing loss and aural pathology. The data suggest that impedance measurements lend pertinent supportive information to routine pure-tone audiometric testing in the detection and management of middle-ear disease in the cleft-palate population.

The Size Of The Middle Ear And The Mastoid Air Cell: System Measured By An Acoustic Method

1978 ◽  
Vol 85 (1-6) ◽  
pp. 24-32 ◽  
Author(s):  
O. I. Molvær ◽  
F. M. Vallersnes ◽  
M. Kringlebotn
Keyword(s):  
Middle Ear ◽  
Acoustic Method ◽  
Cell System

scholarly journals The management of acute otitis media

1984 ◽  
Vol 22 (14) ◽  
pp. 53-54
Keyword(s):  
Hearing Loss ◽  
Otitis Media ◽  
Clinical Examination ◽  
Middle Ear ◽  
Acute Otitis Media ◽  
Infectious Complications ◽  
Middle Ear Effusion ◽  
Suppurative Otitis Media ◽  
Painful Condition ◽  
Ear Effusion

Acute suppurative otitis media (AOM) is a common, painful condition affecting 20% of children under 4 years at least once a year,1 and perhaps more in infancy when clinical examination is most difficult. Infectious complications such as mastoiditis, meningitis and cerebral abscess are now rare, but chronic middle ear effusion and hearing loss remain common. Hearing loss may persist long after the infective episode,2 and may impair learning.

Acoustic impedance measurements—correction for probe geometry mismatch

2005 ◽  
Vol 117 (5) ◽  
pp. 2889-2895 ◽  
Author(s):  
N. H. Fletcher ◽  
J. Smith ◽  
A. Z. Tarnopolsky ◽  
J. Wolfe
Keyword(s):  
Acoustic Impedance ◽  
Impedance Measurements ◽  
Probe Geometry
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