RAPID AUDIOGRAM DETERMINATION USING EVOKED RESPONSES

产品说明： （摘自申请人摘要） 虽然 使用听觉脑干反应（ABR）进行听力评估， 成为一种常规测试，目前的临床程序采用点击 ABR刺激仅产生对听力的粗略估计。 频率 具体程序太长，不适用于新生儿和婴儿 最需要详细听力评估的人群。 到 获得ABR听力图（四频阈值测试） 采集系统配备自动生成的 频率特异性刺激和快速检测阈值反应 应该设计。 为了最大限度地发挥功效，器械应提供 临床医生的高质量记录类似于 标准临床实践，使用耗时的程序。这个项目 建议开发处理方法， 减少 ABR采集时间和伪影的影响， 反应存在的客观定量测量（信噪比 比率估计）和频率的潜伏期-强度函数 测试. 这些方法将导致自动EP的发展 该系统将使我们能够获得临床可用的ABR听力图， 适合用作大规模筛选和测试设备的时间框架。

DESCRIPTION: (Adapted from the Applicant's Abstract) Although hearing evaluation using the Auditory Brainstem Response (ABR) has become a routine test, current clinical procedures employing a click stimuli with ABR yield only a rough estimate of hearing. Frequency specific procedures are too lengthy to be applied to newborn and infant populations who are in most need of detailed hearing evaluation. To obtain an ABR audiogram (a four-frequency test of threshold) fast ABR acquisition systems that are equipped with automated generation of frequency specific stimuli and rapid detection of threshold responses should be devised. For maximum effectiveness, the device should provide clinicians with high quality recordings similar to those obtained in standard clinical practice using time-consuming procedures. This project proposes to develop processing methods which will significantly reduce ABR acquisition time and the effects of artifacts while yielding objective quantitative measures of response presence (signal to noise ratio estimates) and latency-intensity functions for the frequencies tested. These methods will result in the development of an automated EP system which will enable us to obtain a clinically usable ABR audiogram in a time frame suitable for use as a mass screening and testing device.