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相关概念视频

Assessment of Diffusion and Perfusion01:17

Assessment of Diffusion and Perfusion

Understanding and evaluating diffusion and perfusion is critical in assessing a patient's respiratory and circulatory health. These processes play key roles in maintaining the body's internal environment, ensuring that tissues receive adequate oxygen while waste products are efficiently removed.
The Role of Diffusion in Respiration
Diffusion is the process by which molecules move from an area of higher concentration to an area of lower concentration. In the respiratory system, this principle...

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Updated: Jun 11, 2026

Tracking the Mammary Architectural Features and Detecting Breast Cancer with Magnetic Resonance Diffusion Tensor Imaging
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在乳腺保护手术期间使用扩散反射光谱的边际评估.

Dinusha Veluponnar1,2, Lisanne L de Boer1, Behdad Dashtbozorg1

  • 1Netherlands Cancer Institute, Antoni van Leeuwenhoek, Department of Surgery, Image-Guided Surgery, Amsterdam, The Netherlands.

Journal of biomedical optics
|April 26, 2024
PubMed
概括
此摘要是机器生成的。

扩散反射光谱 (DRS) 能够在乳腺癌手术期间实时评估边际. 这种技术可以准确地将瘤与健康组织区分开来,改善手术结果.

关键词:
乳腺保护手术是什么?扩散反射光谱学 扩散反射光谱学切除边际评估的评估.组织分类组织分类.

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科学领域:

  • 生物医学光学 生物医学光学
  • 手术瘤学手术瘤学
  • 医学诊断 医学诊断 医学诊断

背景情况:

  • 切除边缘的准确评估在乳腺保护手术中至关重要,以确保完全切除瘤.
  • 目前的方法缺乏实时功能,无法在手术期间精确评估边缘.

研究的目的:

  • 调查扩散反射光谱 (DRS) 的诊断准确性,以实时评估乳房保护手术的边缘.
  • 评估DRS结合组织分类模型在切除边缘区分瘤与健康乳腺组织的能力.

主要方法:

  • 从ex vivo和in vivo乳腺组织收集的扩散反射光谱 (DRS) 数据.
  • 使用收集的DRS数据开发和优化组织分类模型.
  • 验证了DRS在乳房保护手术期间的体内组织歧视的性能.

主要成果:

  • 实现了高诊断性能,马修斯相关系数为0.76.
  • 在瘤组织检测方面表现出卓越的灵敏度 (96.7%) 和特异性 (90.6%).
  • 获得了0.98的曲线下面积 (AUC),表明模型的准确性很强.

结论:

  • 扩散反射光谱 (DRS) 是乳房保护手术中实时边际评估的可行工具.
  • DRS提供高灵敏度和特异性,帮助外科医生实现清晰的边缘.
  • 开发的分类模型,以组合的ex vivo和in vivo数据进行训练,显示出临床应用的巨大潜力.