宽频声导抗测试在听力学中的临床研究进展

Advances in Clinical Research on Broadband Acoustic Conductance Impedance Testing in Audiology

摘要: 宽频声导抗测试作为临床诊断的一种工具，主要用于测量中耳的机械声学特性以及导致中耳负压或中耳炎存在的变化。采用226~8000 Hz的混合短声作为刺激信号，以量化中耳声能反射和吸收的特性，并通过其曲线变化检测中耳功能变化。对于正常人和中耳及内耳病变人群，宽频声导抗测试的声能吸收率都有着不同的变化特征。与传统的声导抗相比，宽频声导抗对中耳功能评估具有更好的敏感性。随着国内外研究的进展，宽频声导抗具有更多的临床应用空间。

Abstract: Broadband acoustic conductance testing is used as a clinical diagnostic tool to measure the mechanical acoustic properties of the middle ear and the changes that lead to the presence of negative middle ear pressure or otitis media. A mixture of short bursts of sound at 226~8000 Hz is used as a stimulus signal to quantify the properties of middle ear acoustic energy reflection and absorption and to detect changes in middle ear function through changes in its curve. The acoustic energy absorption rate of broadband acoustic impedance testing has different characteristics of change for both normal and middle ear and inner ear pathology populations. Compared with traditional acoustic impedance, broadband acoustic impedance has better sensitivity for middle ear function assessment. With the progress of domestic and international research, broadband acoustic impedance has more clinical applications.