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相关概念视频

Magnetic Resonance Imaging01:24

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Magnetic resonance imaging (MRI) is a noninvasive medical imaging technique based on a phenomenon of nuclear physics discovered in the 1930s, in which matter exposed to magnetic fields and radio waves was found to emit radio signals. In 1970, a physician and researcher named Raymond Damadian noticed that malignant (cancerous) tissue gave off different signals than normal body tissue. He applied for a patent for the first MRI scanning device in clinical use by the early 1980s. The early MRI...
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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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Imaging Studies I: CT and MRI01:14

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Introduction: MRI and CT scans are crucial advancements in medical imaging techniques, playing a vital role in diagnosing conditions related to the gastrointestinal (GI) system. Each scan serves distinct purposes, targets specific areas, and requires unique nursing duties.
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Dynamic Contrast Enhanced Magnetic Resonance Imaging of an Orthotopic Pancreatic Cancer Mouse Model
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动态对比增强 (DCE) 的MRI.

Xin Li1, Wei Huang1, James H Holmes2

  • 1Advanced Imaging Research Center, Oregon Health & Science University, 3181 SW Sam Jackson Park Road, Portland, OR 97239, USA.

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概括
此摘要是机器生成的。

动态对比增强型MRI (DCE-MRI) 提供了对组织输液的洞察力. 使用药理动力学建模进行定量分析现在可以使用先进的MRI,但需要仔细考虑技术因素才能获得准确的结果.

关键词:
对比剂是一种对比剂.在DCE-MRI中,使用的是DCE-MRI.动态对比增强磁共振成像技术 动态对比增强磁共振成像技术K ((转换) 的意思是perfusion 输液是一种输液.透性 透性的药物动力学建模 药物动力学建模T(1) - 权重的螺旋体跟踪.

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科学领域:

  • 放射学 放射学是一门学科.
  • 医疗成像医学成像
  • 生物物理学的生物物理.

背景情况:

  • 动态对比增强型MRI (DCE-MRI) 是一种非侵入性技术.
  • 它提供了关于组织输液和血管性的见解,主要是在瘤学中.
  • DCE-MRI评估了形态学和对比剂的动力学.

研究的目的:

  • 要突出在DCE-MRI中转向量化分析的转变.
  • 讨论药物动力学 (PK) 建模在DCE-MRI解释中的作用.
  • 强调在定量DCE-MRI中技术因素的重要性.

主要方法:

  • 利用先进的MRI技术,同时实现高空间和时间分辨率.
  • 使用药理动力学 (PK) 建模进行定量数据分析.
  • 通过定性,半定量和定量方法解释DCE-MRI数据的时间签名.

主要成果:

  • 最近的进展使得高分辨率的DCE-MRI数据采集成为可能.
  • 使用PK建模进行定量分析正在成为首选的方法.
  • 技术因素显著影响DCE-MRI的定量结果.

结论:

  • 定量DCE-MRI分析是技术进步所促进的.
  • 仔细考虑技术因素 (SNR,时间分辨率,输入函数,T1,PK模型) 是至关重要的.
  • 获取和分析的标准化对于多中心研究至关重要.