在近距离控制的内镜OCTA中纠正非均的旋转扭曲
Zehua Guan1, Qiang Li1, Chen Niu1
1Shanghai Institute of Technology, College of Sciences, Shanghai, China.
Journal of biophotonics
|February 5, 2025
概括
这项研究引入了一种新的注册方法,用于纠正内镜光学连贯断层扫描血管学 (OCTA) 中的非均旋转扭曲,从而能够更清晰地可视化内部组织中的血液流动.
科学领域:
- 生物医学光学 生物医学光学
- 医疗成像医学成像
- 内镜检查是指内镜检查.
背景情况:
- 内镜光学一致性断层扫描 (OCT) 可提供内部组织的高分辨率成像.
- 将OCT与OCT血管学 (OCTA) 结合起来,旨在可视化表面血管.
- 靠近扫描内镜OCT系统面临的挑战是非均旋转扭曲 (NURD).
研究的目的:
- 建议和验证用于在近距离控制的内镜OCTA系统中纠正NURD的注册方法.
- 为了在内镜OCTA成像中实现精确的血液流动可视化.
主要方法:
- 开发一种涉及全球和A线注册的注册技术.
- 该方法的应用用于纠正内镜探头中机械摩擦引起的扭曲.
- 在微流体通道和老鼠直肠模型中测试该方法.
主要成果:
- 证明了非均旋转扭曲 (NURD) 的显著纠正.
- 通过螺旋式B扫描旋转方案成功实施了内镜OCTA.
- 实现了血液流动的清晰可视化.
结论:
- 拟议的注册方法有效地在近距离控制的内镜OCTA中纠正NURD.
- 这一进步有助于在这种系统中,在螺旋式B扫描方案下首次成功进行内镜OCTA成像.
- 该技术增强了在内镜手术中详细评估血液流动的潜力.
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