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相关概念视频

Imaging Biological Samples with Optical Microscopy01:18

Imaging Biological Samples with Optical Microscopy

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Optical microscopy uses optic principles to provide detailed images of samples. Antonie van Leeuwenhoek designed the first compound optical microscope in the 17th century to visualize blood cells, bacteria, and yeast cells. In 1830, Joseph Jackson Lister created an essentially modern light microscope. The 20th century saw the development of microscopes with enhanced magnification and resolution.
In optical microscopy, the specimen to be viewed is placed on a glass slide and clipped on the stage...
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Phase Contrast and Differential Interference Contrast Microscopy01:26

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Phase-Contrast Microscopes
In-phase-contrast microscopes, interference between light directly passing through a cell and light refracted by cellular components is used to create high-contrast, high-resolution images without staining. It is the oldest and simplest type of microscope that creates an image by altering the wavelengths of light rays passing through the specimen. Altered wavelength paths are created using an annular stop in the condenser. The annular stop produces a hollow cone of...
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Confocal Fluorescence Microscopy01:16

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Confocal microscopy is an advanced microscopic technique. The prime advantage of the confocal microscope over other microscopy techniques is its ability to block the out-of-focus light from the illuminated samples using pinholes. It is widely used with fluorescence optics to obtain high-resolution, sharp contrast images. Unlike optical microscopes, confocal microscopes use a focused beam of light laser to scan the entire sample surface at different z-planes. These microscopes are, therefore,...
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Overview of Microscopy Techniques01:22

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The early pioneers of microscopy opened a window into the invisible world of microorganisms. In 1830, Joseph Jackson Lister created an essentially modern light microscope. The 20th century saw the development of microscopes that leveraged nonvisible light, such as fluorescence microscopy that uses an ultraviolet light source and electron microscopy that uses short-wavelength electron beams. These advances significantly improved magnification, image resolution, and contrast. By comparison, the...
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Two-Dimensional Microscopy in Microbiology01:29

Two-Dimensional Microscopy in Microbiology

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Two-dimensional (2D) microscopy encompasses a range of optical techniques that capture images within a single focal plane, offering detailed representations of microscopic structures. These techniques are essential in biological and medical research, enabling the visualization of cellular and subcellular structures with different levels of contrast and specificity.There are several major types of 2D microscopy, each with strengths and applications.Bright-Field MicroscopyBright-field microscopy...
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Updated: May 2, 2026

Full-Field Optical Coherence Microscopy for Histology-Like Analysis of Stromal Features in Corneal Grafts
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使用光学连贯断层扫描来优化莫斯微图外科手术.

Sruti S Akella1,2, Jenna Lee1, Julia Roma May3

  • 1Department of Dermatology, University of Illinois-Chicago, Chicago, IL, USA.

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|April 17, 2024
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概括
此摘要是机器生成的。

光学连贯断层扫描 (OCT) 可以准确地预测活检后的残留基细胞癌 (BCC). OCT成像有助于绘制BCC边界图,可能减少莫斯微图外科手术阶段和缺陷大小.

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科学领域:

  • 皮肤病学 皮肤病学
  • 手术瘤学手术瘤学
  • 医疗成像医学成像

背景情况:

  • 莫斯微图手术 (MMS) 是高危基底细胞癌 (BCC) 的标准.
  • MMS可能是漫长的,昂贵的,范围不可预测的.
  • 术前映射可以优化MMS的结果.

研究的目的:

  • 为了研究用于手术前BCC映射的光学连贯性断层扫描 (OCT).
  • 评估OCT预测MMS阶段和缺陷大小的能力.
  • 为了确定OCT是否可以在活检后识别残留BCC.

主要方法:

  • 对22名计划接受MMS的BCC患者进行前性研究.
  • 手术前的OCT成像绘制BCC边界的地图.
  • 与MMS后遗传病理学对比的OCT发现.

主要成果:

  • 在86%的癌症中,OCT正确预测了BCC的缺失,而活检可以解决瘤.
  • 海外国家和地区预测单阶段的MMS对78%的瘤需要它.
  • 在83.3%的病例中,海外国家和地区预测需要第二个MMS阶段.

结论:

  • 在诊断活检后,OCT可以准确识别残留BCC.
  • 手术前的OCT可以预测瘤的扩展,优化MMS.
  • OCT可以减少MMS阶段和外科手术缺陷大小.