Abstract
Electrocochleography (ECoG) has become a mainstay in the diagnostic armamentarium used by otolaryngologists and audiologists in the evaluation of patients suffering auditory and vestibular symptoms. Controversy exists, however, regarding the relative accuracy of ECoG when recorded with a non-invasive external auditory canal (EAC) electrode as compared to that recorded using a transtympanic electrode. In an effort to resolve this controversy, 19 healthy volunteers (37 ears) with no history of otologic disease or symptoms and a normal screening pure-tone audiogram were studied. For each volunteer, a transtympanic electrode was placed on the cochlear promontory bilaterally under iontophoretic anesthesia followed by the immediate placement of an EAC TlPtrode (Etymotic Research Laboratory, Elk Grove Village, Illinois). Signals from both the transtympanic electrode and the TlPtrode were recorded simultaneously following click stimulus using the Nicolet CA 1000. Preliminary analysis of these recordings identify no significant difference in summating potential/action potential ratios between EAC and transtympanic electrodes in:this normal subject population.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 444-450 |
| Number of pages | 7 |
| Journal | American Journal of Otology |
| Volume | 16 |
| Issue number | 4 |
| State | Published - 1995 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Otorhinolaryngology
Cite this
Simultaneous comparison between transtympanic and extratympanic electrocochleography. / Roland, P. S.; Yellin, Mary W; Meyerhoff, W. L.; Frank, T.
In: American Journal of Otology, Vol. 16, No. 4, 1995, p. 444-450.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Simultaneous comparison between transtympanic and extratympanic electrocochleography
AU - Roland, P. S.
AU - Yellin, Mary W
AU - Meyerhoff, W. L.
AU - Frank, T.
PY - 1995
Y1 - 1995
N2 - Electrocochleography (ECoG) has become a mainstay in the diagnostic armamentarium used by otolaryngologists and audiologists in the evaluation of patients suffering auditory and vestibular symptoms. Controversy exists, however, regarding the relative accuracy of ECoG when recorded with a non-invasive external auditory canal (EAC) electrode as compared to that recorded using a transtympanic electrode. In an effort to resolve this controversy, 19 healthy volunteers (37 ears) with no history of otologic disease or symptoms and a normal screening pure-tone audiogram were studied. For each volunteer, a transtympanic electrode was placed on the cochlear promontory bilaterally under iontophoretic anesthesia followed by the immediate placement of an EAC TlPtrode (Etymotic Research Laboratory, Elk Grove Village, Illinois). Signals from both the transtympanic electrode and the TlPtrode were recorded simultaneously following click stimulus using the Nicolet CA 1000. Preliminary analysis of these recordings identify no significant difference in summating potential/action potential ratios between EAC and transtympanic electrodes in:this normal subject population.
AB - Electrocochleography (ECoG) has become a mainstay in the diagnostic armamentarium used by otolaryngologists and audiologists in the evaluation of patients suffering auditory and vestibular symptoms. Controversy exists, however, regarding the relative accuracy of ECoG when recorded with a non-invasive external auditory canal (EAC) electrode as compared to that recorded using a transtympanic electrode. In an effort to resolve this controversy, 19 healthy volunteers (37 ears) with no history of otologic disease or symptoms and a normal screening pure-tone audiogram were studied. For each volunteer, a transtympanic electrode was placed on the cochlear promontory bilaterally under iontophoretic anesthesia followed by the immediate placement of an EAC TlPtrode (Etymotic Research Laboratory, Elk Grove Village, Illinois). Signals from both the transtympanic electrode and the TlPtrode were recorded simultaneously following click stimulus using the Nicolet CA 1000. Preliminary analysis of these recordings identify no significant difference in summating potential/action potential ratios between EAC and transtympanic electrodes in:this normal subject population.
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UR - http://www.scopus.com/inward/citedby.url?scp=0029061536&partnerID=8YFLogxK
M3 - Article
C2 - 8588643
AN - SCOPUS:0029061536
VL - 16
SP - 444
EP - 450
JO - Otology and Neurotology
JF - Otology and Neurotology
SN - 1531-7129
IS - 4
ER -