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Updated: May 13, 2026
05:22
Systematic Endobronchial Ultrasound - The Six Landmarks Approach
Published on: August 11, 2023
Current status and perspective of EBUS-TBNA
Takahiro Nakajima1, Kazuhiro Yasufuku, Ichiro Yoshino
1Department of General Thoracic Surgery, Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba 260-8670, Japan. tnakajima76@hotmail.com
General Thoracic and Cardiovascular Surgery
|February 26, 2013
Summary
Convex probe endobronchial ultrasound-guided transbronchial needle aspiration (EBUS-TBNA) enables real-time sampling of mediastinal lymph nodes. This minimally invasive technique is crucial for lung cancer staging and molecular diagnostics in personalized medicine.
Area of Science:
- Pulmonology
- Oncology
- Medical Imaging
Background:
- Convex probe endobronchial ultrasound (CP-EBUS) technology was introduced in 2002.
- CP-EBUS visualizes major airway structures and allows for guided needle aspiration.
Purpose of the Study:
- To highlight the utility of EBUS-TBNA in mediastinal staging and molecular analysis for lung cancer.
- To discuss the diagnostic yield and applications of EBUS-TBNA in various pathologies.
Main Methods:
- Real-time endobronchial ultrasound-guided transbronchial needle aspiration (EBUS-TBNA) of mediastinal and hilar lymph nodes.
- Pathological diagnosis, immunohistochemistry, DNA/RNA isolation for molecular analysis (mutation, methylation, gene expression).
Main Results:
- EBUS-TBNA provides diagnostic yields comparable to surgical staging for mediastinal lymph nodes in lung cancer.
- Samples are suitable for DNA, RNA, mRNA, and miRNA analysis, including gene expression and mutation detection.
Conclusions:
- EBUS-TBNA is a valuable tool for mediastinal staging and molecular profiling in lung cancer.
- The technique supports personalized medicine approaches through comprehensive analysis of EBUS-TBNA specimens.
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