뇌간유발반응청력검사와 순음청력검사의 역치차에 관한 고찰

Abstract

The auditory brainstem responses (ABR) are thought to be the far field refraction of electrical events originating from auditory pathway through the brainstem. The ABR has been used clinically in the identification and diagnosis of hearing loss. ABR threshold has been used to estimate the magnitude of hearing loss.

Thresholds of ABR and pure tone behavioral audiogram (PTA) were compared in normal persons and in patients with sensorineural hearing loss. Click-evoked ABR thresholds appeared to be related most closely to the audiometric thresholds at 2 kHz, with relatively poor agreement at 8 kHz. This conclusion is based upon the observation that this comparison resulted in the smallest variance and the highest correlation.

The auditory brainstem responses (ABR) are thought to be the far field refraction of electrical events originating from auditory pathway through the brainstem. The ABR has been used clinically in the identification and diagnosis of hearing loss. ABR threshold has been used to estimate the magnitude of hearing loss.

Thresholds of ABR and pure tone behavioral audiogram (PTA) were compared in normal persons and in patients with sensorineural hearing loss. Click-evoked ABR thresholds appeared to be related most closely to the audiometric thresholds at 2 kHz, with relatively poor agreement at 8 kHz. This conclusion is based upon the observation that this comparison resulted in the smallest variance and the highest correlation.