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

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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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Imaging Studies III: Computed Tomography01:27

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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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Radiological Investigation III: Pulmonary Angiogram and PET Scan01:13

Radiological Investigation III: Pulmonary Angiogram and PET Scan

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Radiological investigations are paramount in the diagnosis and management of various pulmonary diseases. Two essential investigations are the Pulmonary Angiogram and the Positron Emission Tomography (PET) Scan.
Pulmonary Angiogram
A Pulmonary Angiogram is an invasive procedure involving injecting a contrast medium through a catheter threaded into the pulmonary artery or the right side of the heart to visualize the pulmonary vasculature. Computed Tomography (CT) scans have mainly replaced this...
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Imaging Studies I: CT and MRI01:14

Imaging Studies I: CT and MRI

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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.
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Computed Tomography (CT) scan:
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Imaging Studies for Cardiovascular System V: CT01:28

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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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Lung Cancer Screening: Computed Tomography Radiation and Protocols.

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Low-dose computed tomography (LDCT) is now a recommended lung cancer screening tool for high-risk individuals. Optimizing radiation dose is crucial for widespread LDCT use in lung cancer detection.

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Area of Science:

  • Radiology
  • Oncology
  • Medical Imaging

Background:

  • Low-dose computed tomography (LDCT) is increasingly recognized as a vital screening tool for lung cancer.
  • Professional organizations and governmental bodies now include LDCT screening in guidelines for high-risk populations.
  • The Centers for Medicare and Medicaid Services have acknowledged the adequacy of evidence for LDCT lung cancer screening.

Purpose of the Study:

  • To review protocols and guidelines for LDCT utilization in lung cancer screening.
  • To discuss techniques for optimizing radiation dose in LDCT lung cancer screening.
  • To present early institutional experiences with LDCT implementation.

Main Methods:

  • Review of current professional and governmental guidelines for LDCT lung cancer screening.
  • Analysis of scanning and image reconstruction techniques for radiation dose reduction.
  • Description of institutional experience in implementing LDCT screening protocols.

Main Results:

  • LDCT is supported by multiple professional organizations and has been incorporated into national guidelines.
  • Evidence for LDCT lung cancer screening is deemed adequate by major health services.
  • Guidelines for LDCT utilization and radiation dose optimization have been established.

Conclusions:

  • Widespread adoption of LDCT for lung cancer screening is anticipated.
  • Optimization of radiation dose in LDCT is a key consideration for its expanded use.
  • Established protocols and guidelines are essential for effective LDCT implementation in lung cancer screening programs.