Kharkheli E Sh, Shurygina L S, Davitashvili O Z, Tushishvili M A, Chibalashvili N Iu, Korteweg M P, Kevanishvili Z Sh
National Centre of Audiology, Tbilisi, Georgia.
Georgian Med News. 2011 Mar(192):21-8.
Pure tone audiometry, PTA, has been regarded as an initial step when starting acoustic neuroma, AN, diagnostic service. If observing unilateral/asymmetrical sensorineural hearing loss, electronystagmography, ENG, and registration of auditory brainstem responses, ABRs, are instructed to perform. The measures of the methods are listed appearing particularly effective for AN detecting. Efficacy of ENG and ABR approaches in verification of ANs of even initial stages has been stated to reach the absolute identification score, 100%. In tinnitus and/or vertigo complaints, ENG and ABR examinations are recommended to utilize under normal PTA even. The positive evidence of ANs via ENG and ABR has to validate by contrasting magnetic resonance imaging, MRI, while MRI data are advised to utilize for assessment of concrete strategy of surgical intervention. Under negative ENG and ABR outcomes, on the other hand, MRI is considered as a hardly urgent procedure.
纯音测听（PTA）一直被视为开展听神经瘤（AN）诊断服务的第一步。如果观察到单侧/不对称感音神经性听力损失，则需进行眼震电图（ENG）检查以及听觉脑干反应（ABR）记录。这些方法的测量手段被列为对听神经瘤检测特别有效。据称，ENG和ABR方法在验证甚至早期阶段的听神经瘤方面的有效性已达到绝对识别分数，即100%。即使在耳鸣和/或眩晕主诉的情况下，即使PTA正常，也建议进行ENG和ABR检查。通过ENG和ABR得出的听神经瘤阳性证据必须通过与磁共振成像（MRI）对比来验证，而建议利用MRI数据来评估具体的手术干预策略。另一方面，在ENG和ABR结果为阴性的情况下，MRI被视为一项不太紧急的检查。
