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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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Microcirculation: Current Perspective in Diagnostics, Imaging, and Clinical Applications.

Ugur Aksu1, Berna Yavuz-Aksu2, Nandu Goswami3,4

  • 1Biology Department, Science Faculty, Istanbul University, Istanbul 34459, Turkey.

Journal of Clinical Medicine
|November 27, 2024
PubMed
Summary
This summary is machine-generated.

This review highlights microcirculation's crucial role in tissue oxygenation and waste removal. Understanding microvascular dynamics is vital for managing critical conditions like sepsis and COVID-19.

Keywords:
COVID-19hemodynamic coherencemicrocirculationsepsisshocksurgery

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Area of Science:

  • Physiology
  • Pathology
  • Critical Care Medicine

Background:

  • Microcirculation is essential for tissue oxygenation and waste removal.
  • Hemodynamic coherence relies on cellular mechanisms involving the endothelium, glycocalyx, and erythrocytes.
  • Microcirculatory dysfunction is implicated in various pathological conditions.

Purpose of the Study:

  • To review the pivotal role of microcirculation in health and disease.
  • To elucidate the cellular mechanisms of hemodynamic coherence.
  • To discuss microcirculatory changes in critical illnesses such as cardiac surgery, sepsis, shock, and COVID-19.

Main Methods:

  • Literature review of microcirculation.
  • Exploration of cellular mechanisms in microcirculation.
  • Analysis of microcirculatory changes in specific disease states.

Main Results:

  • Microcirculation is fundamental for maintaining tissue homeostasis.
  • Endothelium, glycocalyx, and erythrocytes play key roles in microcirculatory integrity.
  • Significant microcirculatory alterations occur in cardiac surgery, sepsis, shock, and COVID-19.

Conclusions:

  • Microcirculation is intrinsically linked to disease progression and clinical outcomes.
  • Monitoring microvascular dynamics is crucial in critical care.
  • A deeper understanding of microcirculation can improve patient management in critical settings.