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Related Concept Videos

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...
Radiological Investigation III: Pulmonary Angiogram and PET Scan01:13

Radiological Investigation III: Pulmonary Angiogram and PET Scan

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...
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 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...
Pulmonary Embolism II: Diagnostic Studies and Interprofessional Care01:29

Pulmonary Embolism II: Diagnostic Studies and Interprofessional Care

Diagnosing Pulmonary EmbolismDiagnosing pulmonary embolism (PE) involves clinical assessment and advanced imaging tests. The preferred diagnostic tool is the spiral (helical) CT scan or CT angiography (CTA), which uses intravenous contrast media to visualize the pulmonary vasculature and identify emboli.A ventilation-perfusion (V/Q) scan is an alternative for patients unable to receive contrast media. This scan includes both perfusion and ventilation scanning. Perfusion scanning involves...
Cancer Prevention02:59

Cancer Prevention

Several factors can increase the risk of cancer in an individual. About 50% of cancer cases can be prevented by adopting a healthy lifestyle, regular exercise, eating healthy, and following a modest cancer prevention diet. Epidemiological studies have consistently shown that populations with vegetable and fruit-rich diets have reduced the incidence of cancer. On the other hand, populations who have a diet rich in animal fat, red meat, junk food, or high calories are predisposed to cancer.
Some...

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Related Experiment Video

Updated: May 17, 2026

Lung CT Segmentation to Identify Consolidations and Ground Glass Areas for Quantitative Assesment of SARS-CoV Pneumonia
08:05

Lung CT Segmentation to Identify Consolidations and Ground Glass Areas for Quantitative Assesment of SARS-CoV Pneumonia

Published on: December 19, 2020

[CT screening for lung cancer].

Valérie Gounant1, Jalal Assouad, Armelle Lavolé

  • 1Hôpital Tenon, service de pneumologie, Paris, France. valerie.gounant@tnn.aphp.fr

Bulletin Du Cancer
|November 10, 2012
PubMed
Summary
This summary is machine-generated.

Lung cancer screening using low-dose CT shows promise for early detection in smokers. However, physicians must be aware of its limitations, including the identification of benign lung nodules, to ensure effective individual screening.

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Lung CT Segmentation to Identify Consolidations and Ground Glass Areas for Quantitative Assesment of SARS-CoV Pneumonia
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Area of Science:

  • Pulmonology
  • Oncology
  • Radiology

Background:

  • Lung cancer is a leading cause of mortality, with curable outcomes primarily in early stages.
  • Identifying high-risk populations, such as current and former smokers, facilitates targeted screening strategies.
  • Chest radiography has demonstrated inefficiency for lung cancer screening.

Purpose of the Study:

  • To evaluate the efficacy and limitations of low-dose computed tomography (CT) for lung cancer screening.
  • To inform healthcare professionals about the appropriate use of low-dose CT in individual screening protocols.

Main Methods:

  • Review of a recent randomized study in North America evaluating low-dose CT for lung cancer screening.
  • Analysis of the specificity and detection rates of benign anomalies associated with low-dose CT.

Main Results:

  • Low-dose CT has shown promising data for lung cancer detection in screening settings.
  • Low-dose CT is not highly specific, leading to the identification of a significant number of benign lung abnormalities.

Conclusions:

  • Low-dose CT is a potential tool for lung cancer screening in high-risk individuals.
  • Awareness of low-dose CT's limitations, particularly false positives from benign anomalies, is crucial for clinicians interpreting screening results.