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서지정보
ㆍ발행기관 : 한국청각언어재활학회
ㆍ수록지정보 : 청능재활 / 12권 / 4호
ㆍ저자명 : 이재석, 홍석민, 김성균, 김희진, 홍석진, 박일석, 김용복, 심민경, 금보람
ㆍ저자명 : 이재석, 홍석민, 김성균, 김희진, 홍석진, 박일석, 김용복, 심민경, 금보람
목차
INTRODUCTIONMATERIALS AND METHODS
RESULTS
DISCUSSIONS
REFERENCES
한국어 초록
영어 초록
Purpose: It is commonly known that there is no significant transcranial attenuation across the cranium through bone conduction. Theaim of this study was to evaluate transcranial attenuation for bone conduction as a function of each frequency by hearing loss types on
subjects of unilateral hearing loss or unilateral with bilateral hearing loss. Methods: A total of 82 subjects with sensorineural (40 ears),
conductive (20 ears) and mixed hearing loss (22 ears), were enrolled and then were analyzed prospectively. The transcranial attenuation
was analyzed for 82 ears with the differences over 10 dB HL in all frequencies (0.25-4 kHz) by air conduction audiometry. The transcranial
attenuation at each frequency was obtained by bone conduction threshold without masking. Results: We observed a significant in
the mean of transcranial attenuation for bone conduction of the overall subjects. It was closed to 0-9 dB HL at 0.25 kHz to 2 kHz and
13 dB HL at 3 to 4 kHz. There are more difference in principal the transcranial attenuation for bone conduction in high frequency than
a low frequency. Conclusion: Therefore, the conductive and mixed hearing loss always need to consider about the masking by crosshearing.
The cross-hearing, however, needs to consider by type of hearing loss because the transcranial attenuation of bone conduction
as a function of each frequency depends on hearing loss types. Further research should work for the transcranial attenuation of bone
conduction by degrees of hearing loss.