骨導ABRの基本的問題とその臨床応用について

DOI
  • 白石 君男
    Department of Otorhinolaryngology, School of Medicine, Fukuoka University
  • 曽田 豊二
    Department of Otorhinolaryngology, School of Medicine, Fukuoka University
  • 加藤 寿彦
    Department of Otorhinolaryngology, School of Medicine, Fukuoka University
  • 松田 俊一
    Department of Otorhinolaryngology, School of Medicine, Fukuoka University
  • 江浦 陽一
    Department of Otorhinolaryngology, School of Medicine, Fukuoka University
  • 江浦 重治
    Department of Otorhinolaryngology, School of Medicine, Fukuoka University

書誌事項

タイトル別名
  • The Study on Fundamental Problems and Clinical Application of Bone-Conducted Auditory Brainstem Responses

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抄録

We discussed fundamental problems and clinical application on the auditory brainstem responses to bone-conducted signals. 1. Measuring the frequency responses of three bone vibrators to 0.1V (rms) electric input, the one which had maximum output level in high frequency was seemed to be the most favorable to elicit bone-conducted ABRs. 2. The difference between the input power spectrum of electric sinusoidal one wave (0.5 KHz, 1 KHz, 2 KHz, and 4 KHz) and the output spectrum obtained from the artificial mastoid stimulated by the bone vibrator were compared, and then the results of the comparison were showed us the facts about frequency specificity of bone-conducted ABRs. 3. We have found clinical method to determine better hearing ear site by means of bilateral recording of bone-conducted ABRs, in a case those who could not be masked because of bilateral severe conductive hearing loss.

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