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Related Concept Videos

Computed Tomography01:10

Computed Tomography

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...
Imaging Studies III: Computed Tomography01:27

Imaging Studies III: Computed Tomography

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...
Radiological Investigation II: MRI and Ventilation Perfusion Scan01:30

Radiological Investigation II: MRI and Ventilation Perfusion Scan

Description
Magnetic Resonance Imaging (MRI) and Ventilation Perfusion Scans are two radiological investigations that offer detailed diagnostic images of the body, particularly lung structures.
MRI
MRI uses magnetic fields and radiofrequency signals to distinguish between normal and abnormal tissues. This technology provides a more detailed diagnostic image than CT scans, enabling it to characterize pulmonary nodules, stage bronchogenic carcinoma, and evaluate inflammatory activity in...
Imaging Studies for Cardiovascular System V: CT01:28

Imaging Studies for Cardiovascular System V: CT

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...
Imaging Studies I: CT and MRI01:14

Imaging Studies I: CT and MRI

Introduction: MRI and CT scans are crucial advancements in medical imaging techniques, playing a vital role in diagnosing conditions related to the gastrointestinal (GI) system. Each scan serves distinct purposes, targets specific areas, and requires unique nursing duties.
Description of the Procedures
Computed Tomography (CT) scan:
Computed Tomography (CT) scans use X-ray technology to generate detailed images of bones, organs, and tissues. During the scan, the patient lies on a moving table...
Imaging Studies II: Positron Emission Tomography and Scintigraphy01:25

Imaging Studies II: Positron Emission Tomography and Scintigraphy

Positron Emission Tomography (PET) is a medical imaging technique that provides crucial insights into the body's physiological functions at a molecular level. It is an indispensable resource for diagnosing, staging, and monitoring various illnesses, notably cancer, neurological disorders, and cardiovascular conditions.
Fundamental Principles of PET

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Related Experiment Video

Updated: Jun 7, 2026

Image Rendering Techniques in Postmortem Computed Tomography: Evaluation of Biological Health and Profile in Stranded Cetaceans
12:32

Image Rendering Techniques in Postmortem Computed Tomography: Evaluation of Biological Health and Profile in Stranded Cetaceans

Published on: September 27, 2020

[Volumetric computed tomography: Principles, parameters].

A Jankowski1, G Ferretti

  • 1Pôle d'imagerie, clinique universitaire de radiologie et imagerie médicale, CHU de Grenoble, BP 217, 38043 Grenoble cedex 09, France. AJankowski@chu-grenoble.fr

Revue Des Maladies Respiratoires
|October 23, 2010
PubMed
Summary
This summary is machine-generated.

Computed tomography (CT) is the leading chest imaging method, offering rapid image acquisition for patients unable to hold their breath. This fact-sheet explains CT principles, techniques, and limitations.

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Image Rendering Techniques in Postmortem Computed Tomography: Evaluation of Biological Health and Profile in Stranded Cetaceans
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Area of Science:

  • Radiology
  • Medical Imaging Technology

Context:

  • Computed tomography (CT) is the preferred imaging modality for chest evaluation, following initial chest radiography.
  • Advancements in CT technology enable rapid image acquisition, completing scans in seconds.
  • This technique accommodates patients who cannot perform prolonged breath-holds.

Purpose:

  • To elucidate the fundamental principles of computed tomography image formation.
  • To describe the diverse applications and technical variations of CT imaging.
  • To outline the inherent challenges and limitations associated with CT scans.

Summary:

  • CT imaging relies on X-ray attenuation data reconstructed into cross-sectional images.
  • Various CT scanner configurations exist, each with specific advantages and applications.
  • Understanding CT principles is crucial for accurate interpretation and avoiding diagnostic errors.

Impact:

  • Facilitates efficient and comprehensive chest imaging, improving diagnostic accuracy.
  • Enables imaging of critically ill or uncooperative patients.
  • Provides essential knowledge for clinicians and technicians utilizing CT technology.