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相关概念视频

Ultrasonography01:17

Ultrasonography

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Ultrasonography is an imaging technique that uses high-frequency sound waves to visualize the body's internal structures. It is a non-invasive and safe procedure that does not involve the use of ionizing radiation, making it widely used in various medical fields. Ultrasonography is used to study heart function, blood flow in the neck or extremities, certain conditions such as gallbladder disease, and fetal growth and development.
During an ultrasonography procedure, a handheld device called...
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Super-resolution Fluorescence Microscopy01:37

Super-resolution Fluorescence Microscopy

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Super-resolution fluorescence microscopy (SRFM) provides a better resolution than conventional fluorescence microscopy by reducing the point spread function (PSF). PSF is the light intensity distribution from a point that causes it to appear blurred. Due to PSF, each fluorescing point appears bigger than its actual size, and it is the PSF interference of nearby fluorophores that causes the blurred image. Various approaches to achieving higher resolution through SRFM have recently been...
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相关实验视频

Updated: Jul 26, 2025

Two-Dimensional Super-Resolution Visualization of Rat Brain Microvasculature Using Ultrasound Localization Microscopy
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Two-Dimensional Super-Resolution Visualization of Rat Brain Microvasculature Using Ultrasound Localization Microscopy

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超声波局部化显微镜学

Stefanie Dencks1, Georg Schmitz1

  • 1Lehrstuhl für Medizintechnik, Fakultät für Elektrotechnik und Informationstechnik, Ruhr-Universität Bochum, Bochum, Germany.

Zeitschrift fur medizinische Physik
|June 16, 2023
PubMed
概括
此摘要是机器生成的。

超声波定位显微镜 (ULM) 提供超高分辨率的微血管成像和流量测量,甚至在毛细血管水平. 这种技术利用微泡来增强可视化,从临床前使用到临床使用.

关键词:
血液的流速,血液的流速.对比剂对比剂的使用方法定位显微镜局部化显微镜微血管系统是一个微血管系统.超级分辨率的超级分辨率追踪 追踪 追踪 追踪

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Multiplexing Focused Ultrasound Stimulation with Fluorescence Microscopy
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相关实验视频

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Multiplexing Focused Ultrasound Stimulation with Fluorescence Microscopy
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Multi-timescale Microscopy Methods for the Characterization of Fluorescently-labeled Microbubbles for Ultrasound-Triggered Drug Release
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科学领域:

  • 医疗成像医学成像
  • 生物物理学的生物物理.
  • 超声波技术 超声波技术 超声波技术

背景情况:

  • 传统的超声波技术的衍射受限,阻碍了微血管的详细可视化.
  • 像CEUS和多普勒这样的现有方法缺乏毛细血管级别的分辨率.
  • 超声波定位显微镜 (ULM) 成为一种超高分辨率成像模式.

研究的目的:

  • 解释ULM对于微血管成像的概念和适用性.
  • 讨论ULM实施的处理步骤.
  • 审查微血管结构重建和3D成像中的权衡.

主要方法:

  • ULM以次像素精度定位单个微气泡 (MBs).
  • 在图像序列中追踪MBs可以揭示血管形态和流动动力学.
  • 使用商用,经过临床批准的对比剂.

主要成果:

  • 超声波实现了超越传统超声波限制的分辨率.
  • 允许成像和流量测量到毛细血管水平.
  • 可以推导出微血管变化的定量参数.

结论:

  • 在临床前和临床应用中,ULM具有显著的潜力.
  • 应用包括研究血管生成,血管退化和器官功能.
  • ULM促进了对微血管生理学和病理学的更深入的理解.