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首页> 外文会议>Conference on Optical Coherence tomography and coherence domain optical methods in biomedicine XXI >Speckle variance optical coherence tomography using an SS-OCT system and an extended k-sampling clock
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Speckle variance optical coherence tomography using an SS-OCT system and an extended k-sampling clock

机译：使用SS-OCT系统和扩展K样品时钟的散斑差异光学相干性断层扫描

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摘要

Optical coherence tomography (OCT) is capable to image hollow cavity structure within tissues. However, if the cavity is vacant or filled with material having a refractive index different from the tissue, the observed structure is deformed significantly. This deformation artifact can be minimized by filling the cavity with liquid having a refractive index nearly equal to the tissue. Furthermore, by using dynamical OCT method, cavity image intensity can be significantly enhanced compared with the tissue. This image contrast improvement may allow imaging of cavity structures inside deep in tissues. In this paper, we demonstrate good contrast of speckle variance OCT imaging of phantoms. A trial of deep OCT imaging is introduced with which we can extend the OCT depth range to 27.5 mm with a commercial swept source, while the pre-installed k-clock allows only the OCT depth range of 5 mm.
机译：光学相干断层扫描（OCT）能够在组织内进行成像空腔结构。然而，如果空腔空置或填充具有与组织不同的折射率的材料，则观察到的结构显着变形。通过填充具有折射率几乎等于组织的液体的液体，可以最小化该变形伪影。此外，通过使用动态OCT方法，与组织相比，可以显着提高腔图像强度。该图像对比度改善可能允许在组织中深入的腔结构成像。在本文中，我们展示了散斑差异的良好对比的幽灵成像。引入了深度OCT成像的试验，我们可以使用商业扫除源将OCT深度范围延伸到27.5毫米，而预安装的K时钟只允许10毫米的OCT深度范围。

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