Optical coherence tomography as an orientation guide in cochlear implant surgery?
Optical coherence tomography as an orientation guide in cochlear implant surgery?
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DOI：
10.1080/00016480601089408
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发表时间：
2007-01-01
影响因子：
1.4
通讯作者：
Huettmann, Gereon
中科院分区：
文献类型：
--
作者：
Pau, Hans Wilhelm;Lankenau, Eva;Huettmann, Gereon
结论：光学相干断层扫描（OCT）基本可以在不打开耳蜗包膜的情况下显示部分耳蜗形态。因此，它可以作为外科医生在打开充满液体的内耳插入电极阵列之前精确定位鼓室的有用指导。目的：提高人工耳蜗手术在确定打开充满液体的内耳前的解剖定位。问题是一种新的成像技术，OCT，是否可以提供内耳结构（中耳膜、前庭中耳膜）的位置信息，从而引导外科医生找到中耳膜。材料和方法：在一项初步研究中，对人类颞骨准备物进行了OCT，其中进行了耳蜗造口术（“开窗”），保留了内膜和充满液体的内耳。OCT通过一个特殊装备的手术显微镜的原型来应用。在这种情况下使用的OCT模式是光谱域(SD)-OCT。结果：在扫描上，可以类似于b超，OCT提供部分暴露但仍然完整的耳蜗膜衬里内表面的结构信息，如中耳膜或前庭耳膜。
Conclusion: With optical coherence tomography (OCT) it is basically possible to reveal parts of the cochlear morphology without opening its enveloping membranes. Thus, it may serve as a helpful guide for the surgeon to localize the scala tympani precisely before opening the fluid-filled inner ear to insert the electrode array. Objective: To improve anatomical orientation in cochlear implant surgery before definitively opening the fluid-filled inner ear. The question was whether a new imaging technique, OCT, might provide information about the site of the underlying inner ear structures (scala tympani, scala vestibuli) and could, consequently, guide the surgeon towards the scala tympani. Materials and methods: In a preliminary study, OCT was carried out on human temporal bone preparations, in which a cochleostomy ('fenestration') was performed leaving the endosteum and the fluid-filled inner ear intact. OCT was applied via a prototype of a specially equipped operating microscope. The mode of OCT used in this context was spectral-domain (SD)-OCT. Results: On scans, which can be read analogous to B-mode sonography, OCT provides information about structures on the inner surface of the partly exposed but still intact membranous cochlear lining - such as scala tympani or scala vestibuli.