| Stacked ABR의 측정변수：전극부착위치 |
| 김진숙1, 임채봉2 |
1한림대학교 자연과학대학 언어청각학부 청각학전공, 청각언어연구소
2한림대학교 보건대학원 재활학과 청각학전공 |
| Measurement Variables of Stacked ABR：Electrode Montage |
| Jin-Sook Kim1, Chae-Bong Lim2 |
1Department of Speech Pathology & Audiology, College of Natural Sciences, Audiology and Speech Pathology Research Institute, Hallym University, Chuncheon, Korea
2Department of Rehabilitation, Graduate School of Public Health, Hallym University, Chuncheon, Korea |
| Correspondence |
Jin-Sook Kim ,Tel: (033) 248-2213, Fax: (033) 256-3420, Email: jskim@hallym.ac.kr
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Received: November 29, 2006; Accepted: December 17, 2006. Published online: December 31, 2006. |
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| ABSTRACT |
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To overcome the failure of standard ABRs to detect small tumors, the stacked ABR measure was recently developed. The stacked ABR
is an amplitude measure which reflect the neural fiber activity from all frequency regions of the cochlea utilizing derived-band ABRs
with high pass noise (HPN) masking procedures. As the stacked ABR is in the beginning stage, variable experiments should be followed
to reduce several limitations for the clinical applications. This research introduces the domestic data of stacked ABR in Korea
for the first time. The purpose can be defined as identifying an appropriate clinical parameters through analyzing different electrode
locations. Normal Korean 20 adults, 10 females and 10 males, aged 20 to 29 participated in this study. Stacked ABRs were tested at the
levels of click alone, click+8 kHz HPN, click+4 kHz HPN, click+2 kHz HPN, click+1 kHz HPN, click+0.5 kHz HPN, respectively,
at the stimuli level at 60 dBnHL. Electrode montage was examined in two locations, mastoid and earlobe. The results did not show
statistical significance in the averages of Fsp, noise, sweep and artifact according to the locations of electrodes except partial conditions
of noise and sweeps. Noise were significaltly higher at mastoids than earlobes with the conditions of click+8 kHz HPN, click+4 kHz
HPN and click+2 kHz HPN and sweeps were significaltly higher at mastoids than earlobes with the conditions of click+0.5 kHz HPN
only. Additionally, Korean adults’ average amplitudes were higher than the suggested normal values. Conclusively, the appropriate
clinical location seemed to be mastoids, although noise and PAM phenomenon seemed a little alleviated at earlobes. The clinical efficacy
will be improved if the appropriate measurement conditions and stimuli levels were examined. |
| Key Words:
Electrode montage·Stacked ABR·Derived band ABR. |
| 중심단어:
전극부착위치· Stacked ABR· Derived band ABR. |
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