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Related Concept Videos

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...
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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...
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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...
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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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Image Acquisition using Portable Sonography for Emergency Airway Management
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Multidetector row CT for imaging the paediatric tracheobronchial tree.

Georgia Papaioannou1, Carolyn Young, Catherine M Owens

  • 1Radiology Department, Great Ormond Street Hospital for Children NHS Trust, Great Ormond Street, London WC1N 3JH, UK. gpapaio@hotmail.com

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Multidetector row computed tomography (MDCT) enables general hospitals to image children, reducing radiation dose and scan repetitions. This article details low-dose protocols and reconstruction techniques for pediatric thoracic imaging using MDCT.

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Area of Science:

  • Radiology
  • Medical Imaging
  • Pediatric Imaging

Background:

  • Multidetector row computed tomography (MDCT) has transformed pediatric thoracic imaging.
  • General hospitals now perform pediatric CT scans, necessitating appropriate protocols.
  • Optimizing radiation dose and scan efficiency is crucial in pediatric imaging.

Purpose of the Study:

  • To provide general radiologists with essential information on pediatric thoracic imaging using MDCT.
  • To detail low-dose protocols and reconstruction techniques for pediatric CT.
  • To illustrate common clinical applications of MDCT in pediatric patients.

Main Methods:

  • Focus on principles of volumetric CT imaging applicable to all MDCT scanners.
  • Description of reconstruction techniques for pediatric thoracic imaging.
  • Presentation of low-dose protocols used in a 16-slice detector CT scanner.

Main Results:

  • MDCT allows for rapid data acquisition, enabling in-house pediatric imaging.
  • Optimized protocols reduce radiation dose and minimize scan retakes.
  • Common clinical applications of pediatric thoracic MDCT are demonstrated.

Conclusions:

  • MDCT scanners are essential tools for modern pediatric thoracic imaging.
  • Standardized low-dose protocols are vital for safe and effective pediatric CT examinations.
  • This article serves as a guide for general radiologists performing pediatric CT scans.