Four-Channel ABR Recordings Consistency in Interpretation Research Article
Research Article  |   July 01, 1995
Four-Channel ABR Recordings
 
Author Affiliations & Notes
  • Terri L. Pratt
    Section of Audiology, Mayo Clinic, Rochester, MN 55905
  • Wayne O. Olsen
    Section of Audiology, Mayo Clinic, Rochester, MN 55905
  • Christopher D. Bauch
    Section of Audiology, Mayo Clinic, Rochester, MN 55905
Article Information
Hearing Disorders / Research Articles
Research Article   |   July 01, 1995
Four-Channel ABR Recordings
American Journal of Audiology, July 1995, Vol. 4, 47-54. doi:10.1044/1059-0889.0402.47
History: Received December 6, 1993 , Accepted July 26, 1994
 
American Journal of Audiology, July 1995, Vol. 4, 47-54. doi:10.1044/1059-0889.0402.47
History: Received December 6, 1993; Accepted July 26, 1994

Simultaneous four-channel (ipsilateral, contralateral, horizontal, and noncephalic) ABR recordings were reviewed by three audiologists for 187 ears of nontumor patients, and 13 ears of patients having eighth nerve tumors. Waveforms from a subgroup of 63 ears were reexamined by the same audiologists to assess inter- and intra-judge consistency. For nontumor ears, the ipsilateral tracings provided the best identification of Waves I and III; the ipsilateral and noncephalic recordings allowed equal identification of Wave V. Waves I, III, and V generally were more robust from the ipsilateral electrode array than from any of the other electrode montages for the tumor ears. Three-way inter-judge agreement ranged from 82% to 87% for ipsilateral Waves I, III, and V and for noncephalic Wave V. Agreement between pairs of judges ranged from 86% to 100%. Intra-judge agreement ranged from 87% to 94% for ipsilateral Waves I, III, and V, and from 92% to 95% for noncephalic Wave V.

Acknowledgment
Portions of this paper were presented at the Annual Convention of the American Speech-Language-Hearing Associaton, San Antonio, Texas, November 20–23, 1992.
Order a Subscription
Pay Per View
Entire American Journal of Audiology content & archive
24-hour access
This Article
24-hour access