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Related Concept Videos

Computed Tomography01:10

Computed Tomography

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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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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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Imaging Studies for Cardiovascular System V: CT01:28

Imaging Studies for Cardiovascular System V: CT

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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...
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Radiological Investigation I: X-ray and CT01:30

Radiological Investigation I: X-ray and CT

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Radiological investigations, including X-rays and computed tomography (CT) scans, are critical for diagnosing and evaluating various medical conditions. These imaging techniques provide valuable insights into the body's internal structures, aiding in the detection of abnormalities, assessment of disease progression, and development of treatment strategies. This article delves into two primary radiological investigations, chest X-rays and CT scans, outlining their purpose, procedures, and...
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Positron Emission Tomography01:29

Positron Emission Tomography

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Positron emission tomography (PET) is a medical imaging technique involving radiopharmaceuticals — substances that emit short-lived radiation. Although the first PET scanner was introduced in 1961, it took 15 more years before radiopharmaceuticals were combined with the technique and revolutionized its potential.
One of the main requirements of a PET scan is a positron-emitting radioisotope, which is produced in a cyclotron and then attached to a substance used by the part of the body...
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Imaging Studies II: Positron Emission Tomography and Scintigraphy01:25

Imaging Studies II: Positron Emission Tomography and Scintigraphy

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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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Image Rendering Techniques in Postmortem Computed Tomography: Evaluation of Biological Health and Profile in Stranded Cetaceans
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Special Section Guest Editorial: Computed tomography (CT) at 50 years.

Patrick J La Rivière1, Rebecca Fahrig2,3, Norbert J Pelc4

  • 1University of Chicago, Department of Radiology, Chicago, Illinois, United States.

Journal of Medical Imaging (Bellingham, Wash.)
|November 5, 2021
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Summary

This special section celebrates 50 years of X-ray computed tomography (CT). It highlights the significant advancements and impact of CT technology in various scientific fields over the past five decades.

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Area of Science:

  • Medical Imaging
  • Physics
  • Engineering

Background:

  • X-ray computed tomography (CT) has revolutionized medical diagnostics and scientific research since its inception.
  • The development of CT technology marks a significant milestone in non-invasive imaging.
  • Its applications span numerous fields, from healthcare to materials science.

Purpose of the Study:

  • To commemorate the 50th anniversary of X-ray computed tomography.
  • To showcase the evolution and impact of CT technology.
  • To provide a platform for researchers to share advancements in the field.

Main Methods:

  • This section features a collection of invited articles and reviews.
  • Contributions cover theoretical, methodological, and application-based aspects of CT.
  • Expert insights from leading researchers in the field are presented.

Main Results:

  • The collection demonstrates the breadth and depth of CT applications.
  • Key innovations and future directions in CT technology are discussed.
  • The enduring significance of CT in scientific discovery is emphasized.

Conclusions:

  • X-ray computed tomography continues to be a vital tool in scientific exploration and technological advancement.
  • The past 50 years have seen remarkable progress, with future innovations promising even greater impact.
  • This special section serves as a testament to the transformative power of CT.