Imaging acoustic vibrations in an ear model using spectrally encoded interferometry
Imaging acoustic vibrations in an ear model using spectrally encoded interferometry
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DOI：
10.1016/j.optcom.2017.09.041
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发表时间：
2018-01-15
影响因子：
2.4
通讯作者：
Yelin, Dvir
中科院分区：
文献类型：
--
作者：
Grechin, Sveta;Yelin, Dvir
对鼓膜的振动模式进行成像将允许对其机械特性进行准确测量，并提供各种听力障碍的早期诊断。已经提出了各种光学技术来应对这一挑战，并在体外使用点扫描和全场干涉测量法进行了演示。频谱编码成像先前已被证明能够以高空间分辨率对组织声振动进行成像，包括二维相位和振幅映射。在这项工作中，我们展示了一个紧凑的光学装置成像的声振动，可以纳入一个商业上可用的数字耳镜。通过耳镜吹气端口传输谐波声波，并使用定制软件分析频谱干涉图，我们演示了耳模型内圆形橡胶膜的高分辨率振动成像。(C)2017爱思唯尔B.V.保留所有权利。
Imaging vibrational patterns of the tympanic membrane would allow an accurate measurement of its mechanical properties and provide early diagnosis of various hearing disorders. Various optical technologies have been suggested to address this challenge and demonstrated in vitro using point scanning and full-field interferometry. Spectrally encoded imaging has been previously demonstrated capable of imaging tissue acoustic vibrations with high spatial resolution, including two-dimensional phase and amplitude mapping. In this work, we demonstrate a compact optical apparatus for imaging acoustic vibrations that could be incorporated into a commercially available digital otoscope. By transmitting harmonic sound waves through the otoscope insufflation port and analyzing the spectral interferograms using custom-built software, we demonstrate high-resolution vibration imaging of a circular rubber membrane within an ear model. (C) 2017 Elsevier B.V. All rights reserved.