TYMPANIC MEMBRANE VIBRATION ANALYSIS BY L ASER-DOPPLER VIBROMETRY IN EXPERIMENTAL FIXATION OF THE STAPES FOOTPLATE

Authors
STASCHE N BAKER A FOTH HJ HUTHOFF C HORMANN K
Citation
N. Stasche et al., TYMPANIC MEMBRANE VIBRATION ANALYSIS BY L ASER-DOPPLER VIBROMETRY IN EXPERIMENTAL FIXATION OF THE STAPES FOOTPLATE, Laryngo-, Rhino-, Otologie, 73(7), 1994, pp. 353-357
Citations number
NO
Categorie Soggetti
Otorhinolaryngology
Journal title
Laryngo-, Rhino-, Otologie → ACNP
ISSN journal
09358943
Volume
73
Issue
7
Year of publication
1994
Pages
353 - 357
Database
ISI
SICI code
0935-8943(1994)73:7<353:TMVABL>2.0.ZU;2-B
Abstract
At times preoperative diagnosis of otosclerosis can prove difficult. E ven the objective measurement of the stapes reflex is not very conclus ive in patients suffering from more severe hearing loss. Laser-Doppler vibrometry measures the velocity or amplitude of the tympanic membran e (umbo) vibrations. Laser-Doppler vibrometry has a sensitivity that i s highly by the factor 104 than tympanometry. The herewith presented e xaminations show, that there is a correlation between the frequency pa tterns of the displacement amplitudes and experimentally simulated oto sclerosis.