History compounding: a novel speckle reduction technique for OCT guided cochleostomy
History compounding: a novel speckle reduction technique for OCT guided cochleostomy
复制标题
历史复合：一种用于 OCT 引导耳蜗造口术的新型散斑减少技术
DOI：
10.1117/12.2006979
复制
发表时间：
2013
期刊：
影响因子：
--
通讯作者：
J. Wörn
中科院分区：
文献类型：
--
作者：
Y. Pfeiffer;Wieser;Weller;Klenzner;Raczkowsky;J. Wörn
光学相干断层扫描 (OCT) 是一种很有前景的候选技术，可用于在耳蜗造口术期间监测钻孔通道的底部，以防止骨组织下的关键结构受伤。虽然覆盖骨组织的厚度在钻孔过程中发生变化，但反向散射光的波前也发生变化，导致连续历史扫描中观察到的结构的散斑图案发生变化。通过对这些扫描中的不同模式进行平均（称为历史复合），可以减少斑点，并且关键结构的检测变得更加容易。在平均之前，必须补偿骨组织𝑛𝑏的折射率，以便不同历史扫描中相同结构的散斑可以对齐在一起。提出了一种利用OCT准确测量折射率的方法。通过实验评估历史复合，新技术被证明是一种有效、灵活、直观的散斑减少技术，适用于 OCT 引导的耳蜗造口术以及其他类型的硬组织消融。
Optical coherence tomography (OCT) is a promising candidate for monitoring the bottom of the drilled channel during cochleostomy to prevent injury to the critical structure under the bone tissue. While the thickness of the overlaying bone tissue is changed during the drilling process, the wave front of the backscattered light is also altered, resulting in changing speckle patterns of the observed structures in the sequential historical scans. By averaging the different patterns in these scans, named history compounding, the speckles can be reduced and the detection of critical structure becomes much easier. Before averaging, the refractive index of bone tissue 𝑛𝑏 has to be compensated so that the speckles of the same structure in different historical scans can be aligned together. An accurate method for measuring the refractive index nbusing OCT is presented. Experiments were conducted to evaluate history compounding and the new technique is proved to be an effective, flexible and intuitive speckle reduction technique for OCT guided cochleostomy as well as hard tissue ablation of other kind.
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影响因子：
1.4
作者：
Pau, Hans Wilhelm;Lankenau, Eva;Huettmann, Gereon
通讯作者：
Huettmann, Gereon
从 OCT 图像估计骨矿物质密度
DOI：
--
发表时间：
2004
期刊：
SPIE BiOS
影响因子：
--
作者：
N. Ugryumova;S. Matcher;D. Attenburrow
通讯作者：
D. Attenburrow
影响因子：
1.4
作者：
Lin, James;Staecker, Hinrich;Jafri, M. Samir
通讯作者：
Jafri, M. Samir
影响因子：
3.6
作者：
Adler, DC;Ko, TH;Fujimoto, JG
通讯作者：
Fujimoto, JG