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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...
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Related Experiment Video

Updated: Aug 11, 2025

Use of Electromagnetic Navigational Transthoracic Needle Aspiration E-TTNA for Sampling of Lung Nodules
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Argentine consensus recommendations for lung cancer screening programmes: a RAND/UCLA-modified Delphi study.

Iris Boyeras1, Javier Roberti2,3, Mariana Seijo4

  • 1Angel Roffo Oncology Institute, Universtiy of Buenos Aires, Buenos Aires, Argentina.

BMJ Open
|February 3, 2023
PubMed
Summary
This summary is machine-generated.

Low-dose CT (LDCT) screening annually is recommended for high-risk individuals aged 55-74 for lung cancer (LC). This method improves survival compared to other screening techniques.

Keywords:
Adult thoracic medicineComputed tomographyONCOLOGYProtocols & guidelines

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Area of Science:

  • Pulmonology
  • Oncology
  • Radiology

Background:

  • Lung cancer (LC) screening enhances survival rates.
  • Low-dose computed tomography (LDCT) is the most effective screening method, surpassing chest X-ray and sputum cytology.
  • Expert consensus in Argentina established guidelines for LC screening programs.

Approach:

  • A mixed-method study involved literature review and a modified Delphi consensus panel.
  • The Evidence to Decision (EtD) framework guided the generation of 13 evaluation criteria.
  • Nineteen experts participated in four voting rounds, using the RAND/UCLA method for consensus.

Key Points:

  • Annual LDCT screening is recommended for high-risk individuals aged 55-74.
  • High-risk criteria include smoking history (≥30 pack-years) or recent cessation (within 15 years) and specific nodule detection thresholds.
  • Screening programs should incorporate smoking cessation, cardiovascular risk assessment, and multidisciplinary management protocols.

Conclusions:

  • These recommendations establish minimum requirements for local LC screening protocols.
  • Adaptable guidelines empower institutions to tailor programs to specific needs and resources.
  • The consensus aims to optimize lung cancer detection and improve patient survival through standardized yet flexible screening approaches.