Clinical Utility of Laser-Doppler Vibrometer Measurements in Live Normal and Pathologic Human Ears
- 1 January 2008
- journal article
- review article
- Published by Ovid Technologies (Wolters Kluwer Health) in Ear & Hearing
- Vol. 29 (1), 3-19
- https://doi.org/10.1097/aud.0b013e31815d63a5
Abstract
The laser-Doppler vibrometer (LDV) is a research tool that can be used to quickly measure the sound-induced velocity of the tympanic membrane near the umbo (the inferior tip of the malleus) in live human subjects and patients. In this manuscript we demonstrate the LDV to be a sensitive and selective tool for the diagnosis and differentiation of various ossicular disorders in patients with intact tympanic membranes and aerated middle ears. Patients with partial or total ossicular interruption or malleus fixation are readily separated from normal-hearing subjects with the LDV. The combination of LDV measurements and air-bone gap can distinguish patients with fixed stapes from those with normal ears. LDV measurements can also help differentiate air-bone gaps produced by ossicular pathologies from those associated with pathologies of inner-ear sound conduction such as a superior semicircular canal dehiscence.Keywords
This publication has 52 references indexed in Scilit:
- Measurements of Human Middle- and Inner-Ear Mechanics With Dehiscence of the Superior Semicircular CanalOtology & Neurotology, 2007
- Distortion product otoacoustic emissions measured as vibration on the eardrum of human subjectsProceedings of the National Academy of Sciences of the United States of America, 2007
- Superior Semicircular Canal Dehiscence Mimicking Otosclerotic Hearing LossAdvances in oto-rhino-laryngology, 2007
- Structures that contribute to middle-ear admittance in chinchillaJournal of Comparative Physiology A, 2006
- Operative Management of Superior Semicircular Canal DehiscenceThe Laryngoscope, 2005
- X-Linked Mixed Deafness Syndrome with Congenital Fixation of the Stapedial Footplate and Perilymphatic Gusher (DFN3)Published by S. Karger AG ,2002
- Evaluation of Eardrum Laser Doppler Interferometry as a Diagnostic ToolThe Laryngoscope, 2001
- Superior canal dehiscence syndromeAmerican Journal of Otolaryngology, 2000
- Multifrequency Tympanometry in Normal AdultsEar & Hearing, 1993
- Acoustic Reflex AveragingEar & Hearing, 1984