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

Radiological Investigation I: X-ray and CT

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 the...
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...
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...
Positron Emission Tomography01:29

Positron Emission Tomography

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 being...
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...

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Computed tomography radiation dose: a primer for administrators.

David A Leswick1, Chance S Dumaine, Nida S Syed

  • 1Department of Radiology, Royal University Hospital, University of Saskatchewan, Saskatoon, Saskatchewan. david.leswick@saskatoonhealthregion.ca

Healthcare Quarterly (Toronto, Ont.)
|August 12, 2009
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Computed tomography (CT) use is rising, increasing patient radiation dose and malignancy risk. Minimizing CT radiation dose is crucial for patient safety and public health, requiring a collaborative team approach.

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Area of Science:

  • Medical Imaging
  • Radiology
  • Public Health

Background:

  • Computed tomography (CT) utilization is increasing globally.
  • Diagnostic CT radiation doses are linked to elevated malignancy risks.
  • Rising CT use poses a significant public health concern due to radiation exposure.

Purpose of the Study:

  • To educate healthcare professionals on diagnostic CT radiation dose.
  • To discuss CT utilization rates, typical doses, and associated risks.
  • To highlight strategies for CT dose management and optimization.

Main Methods:

  • Review of current literature on CT radiation dose and risks.
  • Analysis of CT utilization and dose data from Saskatchewan.
  • Discussion of a multi-faceted team approach involving administrators, technologists, and physicians.

Main Results:

  • Evidence indicates a link between diagnostic CT radiation doses and increased malignancy risk.
  • CT dose management requires a collaborative effort among healthcare professionals.
  • Optimization strategies are essential to minimize patient radiation exposure.

Conclusions:

  • Minimizing radiation dose from diagnostic CT is imperative for patient safety.
  • A team-based educational approach is vital for effective CT dose management.
  • Implementing dose optimization strategies can mitigate public health risks associated with CT scans.