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Related Concept Videos

Pulmonary Function Tests01:25

Pulmonary Function Tests

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Pulmonary Function Tests (PFTs)
Pulmonary Function Tests are crucial diagnostic tools for assessing respiratory function, particularly in patients with chronic respiratory disorders. They comprehensively evaluate lung volumes, ventilatory function, breathing mechanics, diffusion, and gas exchange. These tests help diagnose pulmonary diseases and play a significant role in monitoring disease progression, evaluating disability, and assessing response to therapy.
PFTs involve using a spirometer, a...
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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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Endoscopic Studies I: Bronchoscopy and Thoracoscopy01:30

Endoscopic Studies I: Bronchoscopy and Thoracoscopy

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Endoscopy is a non-surgical medical technique used to examine a person's internal organs and vessels. This lesson will focus on two types of endoscopic studies: bronchoscopy and thoracoscopy.
Bronchoscopy
Description
Bronchoscopy is a procedure that involves direct visualization of the larynx, trachea, and bronchi for diagnostic and therapeutic purposes. A flexible fiber optic or rigid bronchoscope is used to carry out the procedure. The fiber-optic bronchoscope is more frequently used due...
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Related Experiment Video

Updated: Mar 10, 2026

Lung Tumor Cell Recruitment Assay
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Lung Tumor Cell Recruitment Assay

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[Lung screening].

B Milleron1, V Gounant2, A Khalil3

  • 1Service de pneumologie, hôpital Tenon, AP-HP, 75020 Paris, France; Service d'oncologie thoracique, CIC 1425, CLIP2 Paris-Nord, hôpital Bichat, AP-HP, 75018 Paris, France.

Revue De Pneumologie Clinique
|December 14, 2016
PubMed
Summary
This summary is machine-generated.

Annual low-dose CT-scan screening for heavy smokers significantly reduces lung cancer and overall mortality. Despite potential harms like false positives, the benefits of lung cancer screening outweigh the risks.

Keywords:
Cancer bronchopulmonaireDépistageLow-dose CT-scanLung cancerScanner faiblement doséScreening

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Area of Science:

  • Pulmonology
  • Oncology
  • Radiology

Background:

  • Lung cancer screening using low-dose CT-scans (LDCT) has shown promise in reducing mortality among high-risk individuals.
  • Concerns regarding over-diagnosis, radiation exposure, and false positives necessitate careful evaluation of LDCT screening protocols.

Purpose of the Study:

  • To evaluate the efficacy and risks of LDCT for lung cancer screening.
  • To inform recommendations for lung cancer screening strategies in different healthcare settings.

Main Methods:

  • Analysis of data from the National Lung Screening Trial (NLST) involving over 53,000 participants.
  • Review of recent publications and guidelines regarding LDCT lung cancer screening.

Main Results:

  • LDCT screening reduced lung cancer mortality by 20% and overall mortality by 6.7% in heavy smokers.
  • Potential harms include over-diagnosis, radiation risks, and high false-positive rates leading to invasive procedures.

Conclusions:

  • The risk-benefit ratio generally favors LDCT screening for lung cancer, despite identified harms.
  • While American societies recommend LDCT screening, its applicability in specific national contexts, like France, requires further clinical validation.