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相关概念视频

Imaging Studies VII: Vascular Imaging01:19

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DefinitionRenal angiography, also known as renal arteriography, is an imaging technique used to obtain a comprehensive view of blood flow and the vascular structure of blood vessels in the kidneys and surrounding areas.PurposeRenal angiography detects blood vessel abnormalities in the kidneys, such as aneurysms, stenosis, thrombosis, vascular tumors, and renal artery stenosis. It evaluates kidney function and guides interventional treatments like angioplasty or stent placement.Pre-Procedure...
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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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Cardiac computed tomography (CT) scanning is an advanced cardiac imaging technique that utilizes CT technology, with or without intravenous (IV) contrast, to produce accurate cross-sectional virtual slices of specific areas of the heart, coronary circulation, and major blood vessels such as the aorta, pulmonary veins, and arteries. The computer processes these slices to generate three-dimensional images. Multidetector CT (MDCT) is a rapid form of CT scanning that captures multiple slices...
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血管内成像-衍生生生理学-基本原理和临床应用.

Annemieke C Ziedses des Plantes1, Alessandra Scoccia1, Frank Gijsen2

  • 1Department of Cardiology, Thoraxcenter, Erasmus University Medical Center, P.O. Box 2040, 3000 CA, Rotterdam, the Netherlands.

Cardiology clinics
|November 10, 2023
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概括

血管内成像现在可以同时对病变进行解剖和功能评估. 本综述涵盖了新的光学连贯性断层扫描和基于血管内超声波的分量流量储备 (FFR) 指数,评估了它们的性能和使用.

关键词:
功能性损伤评估 功能性损伤评估基于IVUS的FFR是基于IVUS的基于OCT的FFR是以OCT为基础的这是OFR的OFR.通过皮肤进行冠状动脉干预.虚拟的 FFR 虚拟的 FFR

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科学领域:

  • 心血管成像 - 心血管成像
  • 干预心脏病学 干预心脏病学
  • 身体生理学 身体生理学

背景情况:

  • 血管内成像提供了冠状动脉病变的解剖细节.
  • 对病变的功能性评估对于指导重血管化决策至关重要.
  • 目前的功能评估方法可能是侵入性的和耗时的.

研究的目的:

  • 审查新兴的血管内成像衍生的生生理学指数.
  • 总结一下这些新型指数的诊断性能.
  • 讨论基于血管内成像的生理学的临床应用.

主要方法:

  • 对基于血管内成像的生理指数研究的文献综述.
  • 对计算流体动力学,流体动力学方程和用于FFR计算的机器学习方法的分析.
  • 对诊断准确性和临床实用性的评估.

主要成果:

  • 已经开发了几种基于光学连贯断层扫描 (OCT) 和静脉内超声波 (IVUS) 的分量流量储备 (FFR) 索引.
  • 这些指数使用先进的建模技术来计算FFR.
  • 这些新型工具的诊断准确性的性能数据正在出现.

结论:

  • 血管内成像衍生的生生理学是一个快速发展的领域.
  • 这些工具有望同时进行解剖学和功能评估,从而有可能改善病变管理.
  • 预计将进一步验证和临床整合.