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Updated: Feb 7, 2026

Author Spotlight: Expanding Interventional Pulmonology Research with Robotic-Assisted Bronchoscopy
Published on: July 19, 2024
Combined virtual-assisted lung mapping (VAL-MAP) with CT-guided localization in thoracoscopic pulmonary segmentectomy
Shun-Mao Yang1, Ching-Kai Lin2, Li-Wei Chen3
1Institute of Biomedical Engineering, College of Medicine and College of Engineering, National Taiwan University, Taiwan; Department of Surgery, National Taiwan University Hospital, Hsin-Chu Branch, Taiwan.
Virtual assisted lung mapping (VAL-MAP) aids in precise lung nodule localization and segment identification for navigational lung resection. This technique, combined with CT-guided localization, improves thoracoscopic pulmonary segmentectomy outcomes.
Area of Science:
- Thoracic Surgery
- Pulmonary Medicine
- Medical Imaging
Background:
- Virtual assisted lung mapping (VAL-MAP) is a bronchoscopic technique for lung marking.
- It aids in navigational lung resection, including nodule localization and segmental identification.
Purpose of the Study:
- To present initial experience with thoracoscopic pulmonary segmentectomy.
- To evaluate the combination of VAL-MAP and computed tomography (CT)-guided localization.
Main Methods:
- India ink markings were made bronchoscopically using a virtual bronchoscopy system without fluoroscopy.
- Post-VAL-MAP CT scans localized markings; data were retrospectively collected.
- Surgeons graded the contribution of VAL-MAP to the operation.
Main Results:
- 24 patients underwent VAL-MAP before thoracoscopic segmentectomy.
- 70.3% of 101 marking attempts contributed to surgery.
- 24 segmentectomies were performed for lung cancer and benign diseases.
Conclusions:
- The combination of VAL-MAP and CT-guided localization enables precise thoracoscopic pulmonary segmentectomy.
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