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Diffusion is the passive movement of substances down their concentration gradients—requiring no expenditure of cellular energy. Substances, such as molecules or ions, diffuse from an area of high concentration to an area of low concentration in the cytosol or across membranes. Eventually, the concentration will even out, with the substance moving randomly but causing no net change in concentration. Such a state is called dynamic equilibrium, which is essential for maintaining overall...
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Diffusion is a type of passive transport. In passive transport, a substance tends to move from an area of high concentration to an area of low concentration until the concentration is equal across the space. For example, take the diffusion of substances through the air. When someone opens a perfume bottle in a room filled with people, the perfume is at its highest concentration in the bottle and is at its lowest at the edges of the room. The perfume vapor will diffuse, or spread away, from the...
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Diffuse Liver Diseases: Role of imaging.

Adele Taibbi1, Dario Picone1, Massimo Midiri1

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|March 25, 2018
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New imaging techniques improve the diagnosis of diffuse liver diseases, such as iron overload and steatosis. These advanced methods offer better noninvasive recognition and follow-up of various metabolic and storage liver pathologies.

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Area of Science:

  • Radiology and Medical Imaging
  • Hepatology
  • Medical Diagnostics

Background:

  • Focal liver lesions are well-diagnosed with current imaging, but diffuse liver diseases present diagnostic challenges.
  • Diffuse liver diseases encompass storage and metabolic pathologies like iron overload and steatosis.
  • Conventional imaging (ultrasound, CT, MRI) often shows overlapping findings for these conditions.

Purpose of the Study:

  • To review common and uncommon diffuse liver diseases.
  • To describe the latest imaging technologies and software for diagnosing diffuse liver conditions.
  • To highlight the advantages, limitations, and pitfalls of these advanced imaging methods.

Main Methods:

  • Review of recent advancements in ultrasound and MR imaging techniques.
  • Focus on specific software developed for quantitative analysis.
  • Correlation of imaging findings with clinical data for noninvasive diagnosis.

Main Results:

  • Emerging imaging techniques and software enhance the identification of diffuse liver disease parameters.
  • New methods aid in the noninvasive recognition and monitoring of conditions like hepatic steatosis and iron overload.
  • Detailed imaging findings for various diffuse liver pathologies are presented.

Conclusions:

  • Advanced imaging offers improved diagnostic accuracy for diffuse liver diseases.
  • Novel techniques are crucial for the noninvasive assessment and management of metabolic and storage liver disorders.
  • Understanding the nuances of these imaging developments is key to overcoming diagnostic limitations.