Related Experiment Video
Updated: Jun 4, 2026

07:30
Electromagnetic Navigation Transthoracic Nodule Localization for Minimally Invasive Thoracic Surgery
Published on: May 4, 2022
Thoracoscopic precision excision technique for small non-palpable lesions using radiofrequency identification lung
Jun Suzuki1, Satoshi Shiono1, Hikaru Watanabe1
1Department of Surgery 2, Yamagata University Faculty of Medicine, Yamagata, Japan.
Journal of Visualized Surgery
|June 3, 2026
Summary
This study presents a novel radio frequency identification (RFID) marking system for thoracoscopic surgery. This technique precisely excises small lung nodules, even those deep or near the hilum, preserving lung function and future surgical options.
Area of Science:
- Thoracic Surgery
- Minimally Invasive Procedures
- Diagnostic Imaging
Background:
- Conventional resection of small, non-palpable lung nodules, especially those deep or hilar-adjacent, poses challenges for stapler-based techniques.
- Segmentectomy, while effective, involves extensive hilar dissection, potentially leading to adhesions and limiting future surgical interventions.
Purpose of the Study:
- To introduce and evaluate a thoracoscopic precision excision technique for small pulmonary nodules using a radio frequency identification (RFID) marking system.
- To enable real-time localization and precise excision of nodules in challenging locations while minimizing parenchymal resection and preserving lung function.
Main Methods:
- Preoperative CT and intraoperative fluoroscopy guided bronchoscopic implantation of an RFID marker near the target nodule.
- Thoracoscopic surgery utilizing the RFID marker for real-time localization and precise excision with electrocautery and advanced energy devices.
- Detailed procedural steps including port placement, marker localization, and margin assessment to ensure adequate resection without excessive tissue removal.
Main Results:
- The RFID-guided technique facilitates precise localization and excision of deeply located or hilar-adjacent lung nodules.
- This method allows for adequate resection margins while minimizing unnecessary lung parenchyma removal.
- The approach preserves lung function and reduces the risk of adhesions, maintaining options for future surgeries.
Conclusions:
- The RFID-guided thoracoscopic precision excision technique is a promising alternative for managing small pulmonary nodules in complex anatomical locations.
- This minimally invasive approach offers improved precision, better lung function preservation, and enhanced feasibility for reoperations compared to conventional methods.

