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Related Concept Videos

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Assessment of Diffusion and Perfusion

Understanding and evaluating diffusion and perfusion is critical in assessing a patient's respiratory and circulatory health. These processes play key roles in maintaining the body's internal environment, ensuring that tissues receive adequate oxygen while waste products are efficiently removed.
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Related Experiment Video

Updated: May 20, 2026

An Open-Source Normothermic Perfusion System Designed for Research Scientists
11:23

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Published on: July 18, 2025

[Perfusion computed tomography for diffuse liver diseases].

S A Schmidt1, M S Juchems

  • 1Klinik für Diagnostische und Interventionelle Radiologie, Universitätsklinikum Ulm, Albert-Einstein-Allee 23, Ulm, Germany. stefan.schmidt@uniklinik-ulm.de

Der Radiologe
|August 1, 2012
PubMed
Summary
This summary is machine-generated.

Perfusion computed tomography (CT) aids in diagnosing diffuse liver diseases and differentiating conditions like cirrhosis. However, potential radiation exposure is a key consideration.

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Area of Science:

  • Radiology
  • Medical Imaging

Background:

  • Perfusion computed tomography (CT) is primarily used in neuroradiology.
  • Polyphase multi-detector spiral CT is a standard method for liver diagnostics.

Purpose of the Study:

  • To explore the application of perfusion CT in diagnosing and differentiating diffuse hepatic diseases.
  • To evaluate the utility of perfusion CT in identifying early-stage malignant liver tumors and distinguishing between cirrhosis and cirrhosis-like changes.

Main Methods:

  • Utilizing polyphase multi-detector spiral computed tomography for liver imaging.
  • Applying perfusion CT techniques for functional assessment of liver parenchyma.

Main Results:

  • Perfusion CT can differentiate between cirrhosis and cirrhosis-like parenchymal changes.
  • Early stages of malignant liver tumors can be detected using perfusion CT.
  • Radiation exposure is a significant drawback of perfusion CT examinations.

Conclusions:

  • Perfusion CT offers valuable diagnostic capabilities for diffuse liver diseases.
  • The technique allows for differentiation of various hepatic conditions and early tumor detection.
  • Balancing the benefits against the risks, particularly radiation exposure, is crucial for clinical application.