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Related Concept Videos

Endoscopic Studies I: Bronchoscopy and Thoracoscopy01:30

Endoscopic Studies I: Bronchoscopy and Thoracoscopy

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 to...

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Related Experiment Video

Updated: Jul 16, 2026

Electromagnetic Navigation Transthoracic Nodule Localization for Minimally Invasive Thoracic Surgery
07:30

Electromagnetic Navigation Transthoracic Nodule Localization for Minimally Invasive Thoracic Surgery

Published on: May 4, 2022

Electromagnetic navigation diagnostic bronchoscopy for small peripheral lung lesions.

D Makris1, A Scherpereel, S Leroy

  • 1Clinic of Respiratory Disease, Department of Anatomopathology, Albert Calmette Hospital, Centre Hospitalier Régional University of Lille, 59037 Lille, France.

The European Respiratory Journal
|March 16, 2007
PubMed
Summary

Electromagnetic navigation-guided bronchoscopy offers a promising tool for diagnosing small peripheral lung lesions when standard methods fail. This technique achieved a 62.5% diagnostic yield in patients unsuitable for surgery or transthoracic biopsy.

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Use of Electromagnetic Navigational Transthoracic Needle Aspiration (E-TTNA) for Sampling of Lung Nodules
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Use of Electromagnetic Navigational Transthoracic Needle Aspiration (E-TTNA) for Sampling of Lung Nodules

Published on: May 23, 2015

Related Experiment Videos

Last Updated: Jul 16, 2026

Electromagnetic Navigation Transthoracic Nodule Localization for Minimally Invasive Thoracic Surgery
07:30

Electromagnetic Navigation Transthoracic Nodule Localization for Minimally Invasive Thoracic Surgery

Published on: May 4, 2022

Use of Electromagnetic Navigational Transthoracic Needle Aspiration (E-TTNA) for Sampling of Lung Nodules
06:03

Use of Electromagnetic Navigational Transthoracic Needle Aspiration (E-TTNA) for Sampling of Lung Nodules

Published on: May 23, 2015

Area of Science:

  • Pulmonology
  • Medical Imaging
  • Interventional Pulmonology

Background:

  • Standard bronchoscopy techniques often yield suboptimal results for diagnosing small peripheral lung lesions.
  • Patients with comorbidities may be unsuitable for surgical intervention or computed tomography (CT)-guided transthoracic needle aspiration biopsy.

Purpose of the Study:

  • To prospectively evaluate the diagnostic yield and safety of electromagnetic navigation-guided bronchoscopy (EMN-GB) for small peripheral lung lesions.
  • To assess the impact of navigational accuracy on diagnostic yield in a cohort of non-surgical candidates.

Main Methods:

  • A prospective study involving 40 consecutive patients with non-diagnostic standard bronchoscopies.
  • Electromagnetic navigation system used to guide a catheter with a position sensor, superimposing real-time data onto pre-acquired CT scans.
  • Calculation of CT-to-body divergence to measure navigational accuracy.

Main Results:

  • The overall diagnostic yield of EMN-GB was 62.5% (25 out of 40 lesions).
  • Diagnostic yield improved to 77.2% when CT-to-body divergence was less than or equal to 4 mm.
  • Three cases of pneumothorax occurred, with one requiring chest drainage, indicating an acceptable safety profile.

Conclusions:

  • Electromagnetic navigation-guided bronchoscopy demonstrates potential for improving diagnostic yield in transbronchial biopsies without additional fluoroscopy.
  • This technique may be valuable for the early diagnosis of lung cancer, especially in nonoperable patients.