使用额头表面麦克风预测骨传导装置输出:与前沿运动和内压力进行比较
Tobias Mair1, Ivo Dobrev1, Christof Röösli1
1Department of Otorhinolaryngology, Head and Neck Surgery, University Hospital Zurich, University of Zurich, Zurich, Switzerland.
International journal of audiology
|February 9, 2026
概括
一个原型的额头表面麦克风 (SM) 准确地测量了低到中频率的骨传导装置 (BCD) 输出. 为了可靠的高频预测,需要进一步开发.
科学领域:
- 听力学 听力学是指听力学.
- 生物医学工程 生物医学工程
- 医疗器械 医疗器械
背景情况:
- 骨传导装置 (BCD) 对于听力康复至关重要.
- 精确测量BCD输出对于优化患者的治疗结果至关重要.
- 表面麦克风 (SMs) 为评估BCD性能提供了一种非侵入性方法.
研究的目的:
- 评估定制的额头表面麦克风 (SM) 的准确性,用于预测各种骨传导装置 (BCD) 的输出.
- 将SM测量与直接测量耳运动和压力的测量进行比较.
主要方法:
- 一项实验性研究使用六个人类尸体头.
- 用三个BCD (ADHEAR和两个BONEBRIDGE设备) 进行测量.
- 应用了从0.1到10kHz的渐进正弦刺激,并将SM输出与耳前沿运动和内压力进行了比较.
主要成果:
- 在SM声压和从400Hz到2kHz的耳响应之间发现了强烈的线性相关性.
- 在更高的频率下,SM灵敏度下降:ADHEAR高于2kHz,BONEBRIDGE高于3kHz.
- 这种依赖频率的下降限制了SM在更高范围的预测准确性.
结论:
- 原型SM显示出在临床环境中低至中频率估计BCD动态范围的前景.
- 将SM输出标准化为听力值可以提高其临床实用性.
- 需要进行进一步的研究和开发,以提高SM灵敏度,并在整个临床相关频谱中实现可靠的输出预测.
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