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Related Concept Videos

Imaging Studies III: Computed Tomography01:27

Imaging Studies III: Computed Tomography

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DefinitionComputed Tomography (CT) of the genitourinary (GU) tract is a non-invasive imaging modality that utilizes X-rays and computer processing to generate detailed cross-sectional images of the urinary system, encompassing the kidneys, ureters, bladder, and adjacent structures such as the adrenal glands.PurposeCT scans of the GU tract serve several diagnostic and therapeutic purposes, including:Diagnosis of Urinary Tract Diseases: Detects kidney stones, tumors, cysts, and congenital...
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Computed Tomography01:10

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Tomography refers to imaging by sections. Computed tomography (CT) is a non-invasive imaging technique that uses computers to analyze several cross-sectional X-rays to reveal minute details about structures in the body.
The technique was invented in the 1970s and is based on the principle that as X-rays pass through the body, they are absorbed or reflected at different levels. In the technique, a patient lies on a motorized platform while a computerized axial tomography (CAT) scanner rotates...
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Diffusion01:12

Diffusion

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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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Diffusion01:21

Diffusion

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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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Brick Durability, Strength, and Appearance01:15

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Brick durability, strength, and appearance are crucial factors in construction, influencing the choice of bricks for specific applications. The process of freeze-thaw, for instance, significantly affects brick durability. This phenomenon occurs when water absorbed by a brick expands as it freezes, potentially causing damage when it melts and refreezes. Bricks are graded for durability: SW-grade bricks are the most durable, offering high strength and low water absorption, followed by MW-grade...
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The air in the lungs is measured in volumes and capacities. Lung volume measures reflect the amount of air taken in, released, or left over after a lung function, like a single inhalation. Lung capacity measures are sums of two or more lung volume measures.
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Related Experiment Video

Updated: Feb 14, 2026

High-Resolution Cardiac Positron Emission Tomography/Computed Tomography for Small Animals
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Various diffuse infiltrative lung diseases: high resolution computed tomography appearances.

M Tüzün1, D Tüzün, B Hekimoglu

  • 1Department of Radiology, Social Security Hospital and Social Security Occupational Diseases Hospital, Ankara, Turkey. balkanci@ato.org.tr

Australasian Radiology
|March 21, 2002
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Summary
This summary is machine-generated.

High-resolution CT (HRCT) effectively images diffuse infiltrative lung diseases, showing features that correlate with histopathology. This essay details HRCT appearances for various lung conditions.

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Area of Science:

  • Radiology
  • Pulmonary Medicine
  • Medical Imaging

Background:

  • High-resolution computed tomography (HRCT) is crucial for diagnosing diffuse infiltrative lung diseases.
  • HRCT findings often correlate with histopathological abnormalities in these conditions.

Purpose of the Study:

  • To illustrate the characteristic appearances of various diffuse infiltrative lung diseases on HRCT.
  • To serve as a visual guide for radiologists and clinicians.

Main Methods:

  • Utilizing high-resolution CT scans with 1-2 mm collimation.
  • Employing high spatial frequency algorithms for image reconstruction.

Main Results:

  • Demonstration of HRCT features for a range of diffuse infiltrative lung diseases.
  • Correlation of imaging findings with known histopathological patterns.

Conclusions:

  • HRCT is an established and valuable technique for evaluating diffuse infiltrative lung diseases.
  • Familiarity with HRCT appearances aids in accurate diagnosis and patient management.