Combining Optical Coherence Tomography (OCT) with an Operating Microscope

Combining Optical Coherence Tomography (OCT) with an Operating Microscope
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将光学相干断层扫描 (OCT) 与手术显微镜相结合

DOI:
10.1007/978-3-540-68764-1_57
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发表时间:
2007
影响因子:
7.4
通讯作者:
G. Hüttmann
G. Hüttmann
中科院分区:
医学2区
文献类型:
--
作者:
E. Lankenau;David Klinger;C. Winter;Asim Malik;H. Müller;S. Oelckers;H. Pau;T. Just;G. Hüttmann

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光学相干层析成像(OCT)是一种新兴的生物医学成像技术,它给出了光散射组织的高分辨率截面图像,深度为几毫米。本工作的目的是将联合收割机OCT与手术显微镜相结合。通过专门设计的扫描光学器件将谱域OCT适配到手术显微镜的相机端口。这使得在不同的医疗应用期间能够实现非接触式在线OCT。隐藏的组织结构以低于30 µm的分辨率可视化。作为耳鼻喉科应用的第一个例子,我们证明了OCT手术显微镜基本上能够在不打开其包膜的情况下显示耳蜗形态的部分。因此,它可以作为外科医生在打开充满液体的内耳以插入耳蜗植入物的电极阵列之前准确定位鼓阶的有用指南。
Optical coherence tomography (OCT) is an emerging biomedical imaging technology which gives high-resolution sectional images of light scattering tissue down to a depth of a few millimeter. The objective of this work is to combine OCT with an operation microscope. A spectral domain OCT was adapted via a specially designed scanning optics to the camera port of an operation microscope. This enables a non-contact on-line OCT during different medical applications. Hidden tissue structures were visualized with a resolution below 30 µm. As a first example for an application in otolaryngology we demonstrated that the OCT operation microscope is basically able to reveal parts of the cochlear morphology without opening its enveloping membranes. Thus it may serve as a helpful guide for the surgeon to exactly localize the scala tympani before opening the fluid-filled inner ear for inserting the electrode array of cochlear implants.
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