光学连贯断层扫描和弹性扫描用于体外可视化早期胃癌
Alana G Gonzales1, Caitlin Ruhland2, Graham Spicer3,4
1University of Arizona, Wyant College of Optical Sciences, Tucson, Arizona, United States.
Journal of biomedical optics
|February 16, 2026
概括
光学连贯断层扫描 (OCT) 和光学连贯弹性扫描 (OCE) 通过可视化组织结构和硬度变化,有望用于早期检测胃癌. 这些先进的成像技术可以带来更好的查工具,对胃癌检测具有更高的灵敏度.
科学领域:
- 生物医学光学 生物医学光学
- 医学成像医学成像
- 胃肠病学 胃肠病学
背景情况:
- 胃癌的存活率取决于阶段,早期检测对于更好的结果至关重要.
- 目前的白光内镜对早期胃癌检测的对比度有限.
- 早期的胃癌表现出微观结构变化和增加的组织硬性.
研究的目的:
- 研究用于可视化胃组织的光学连贯性断层扫描 (OCT) 和光学连贯性弹性扫描 (OCE).
- 评估OCT和OCE在区分正常,癌前和癌症胃组织方面的能力.
- 探索胃癌查工具的潜在改进.
主要方法:
- 收集了ex vivo人类胃组织样本.
- 利用一个基板OCT系统进行组织结构的定性可视化.
- 使用光学连贯弹性学 (OCE) 与光学触摸来测量相对组织硬度.
- 绘制压力测量结果并将它们叠加在OCT图像上.
- 通过组织病理学分析确认了组织分类.
主要成果:
- 海外国与地区发现了正常和癌症胃组织之间的明显结构差异.
- OCE显示,随着胃癌前期和癌症的进展,组织度增加的趋势.
- 正常组织显示较少的光学衰减相比,转化成形和印章环细胞癌 (SRCC).
结论:
- OCT和OCE显示了可视化胃组织结构和度变化的潜力.
- 这些技术可以区分正常,转移性,失塑性和早期癌症的胃组织.
- OCT和OCE可以成为增强胃癌查工具的基础,提高灵敏度.
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