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Related Experiment Video

Updated: Feb 2, 2026

Author Spotlight: Advancing 3D Modeling for Enhanced Diagnosis and Treatment of Pulmonary Nodules in Early-Stage Lung Cancer
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Advances in techniques for identifying small pulmonary nodules.

Jun Nakajima1

  • 1Department of Thoracic Surgery, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan. nakajima-tho@h.u-tokyo.ac.jp.

Surgery Today
|November 27, 2018
PubMed
Summary

Virtual-assisted lung mapping offers a safer, more reliable method for resecting small lung nodules detected by high-resolution computed tomography. This technique improves surgical margins and success rates for early lung cancer treatment.

Keywords:
Pulmonary noduleVideo-assisted thoracic surgeryVirtual-assisted lung mapping

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Area of Science:

  • Thoracic Surgery
  • Pulmonary Medicine
  • Medical Imaging

Background:

  • Video-assisted thoracoscopic surgery (VATS) is increasingly used for small pulmonary nodules.
  • High-resolution computed tomography (HRCT) enhances early lung cancer detection, often presenting as ground-glass opacity nodules.
  • Traditional computed tomography-guided percutaneous hook wire localization has been a common technique for resecting small lesions.

Purpose of the Study:

  • To introduce and evaluate virtual-assisted lung mapping (VALM) for safer and more reliable resection of small pulmonary nodules.
  • To assess the safety and efficacy of VALM in achieving adequate surgical margins.
  • To explore advancements in minimally invasive resection of deep-seated lung lesions.

Main Methods:

  • Virtual-assisted lung mapping involves 3D computed tomography, bronchoscopy, and fluoroscopically guided navigation for dye marking on the lung surface.
  • A prospective study was conducted to evaluate the technique.
  • An electromagnetic navigation bronchoscopy system was introduced to confirm marking sites in the operating room before VATS.

Main Results:

  • The prospective study demonstrated that virtual-assisted lung mapping is a safe technique with a high success rate.
  • Multiple dye markings around the target lesion facilitate sufficient surgical margins during resection.
  • The integration of electromagnetic navigation bronchoscopy enhances pre-operative confirmation of marking sites.

Conclusions:

  • Virtual-assisted lung mapping is a safe and effective method for guiding the resection of small pulmonary nodules, particularly early lung cancers.
  • The technique improves surgical precision and allows for adequate margins, contributing to successful outcomes in VATS.
  • Ongoing research focuses on further enhancing minimally invasive resection of deep lung lesions.