Application of Electromagnetic Navigation System in Pulmonary Nodule Localization

Electromagnetic Navigation-Guided Versus CT-Guided Localization of Pulmonary Nodules: A Multicenter, Prospective, Randomized Controlled Trial

This study aims to design and conduct a multicenter, prospective, randomized controlled post-market clinical trial to validate the clinical efficacy of high-precision electromagnetic navigation technology.

Inclusion Criteria:

1. Age 18-80 years, regardless of gender;
2. Solitary single nodule, scheduled for lung nodule puncture and localization;
3. Chest CT (lung window mode) showing a maximum nodule diameter ≤ 2 cm;
4. Eastern Cooperative Oncology Group (ECOG) performance status score 0-2;
5. Voluntary participation, with signed informed consent.

Exclusion Criteria:

1. Not suitable for video-assisted thoracoscopic surgery;
2. The distance between the center of the lesion and the dome of the diaphragm is < 3 cm;
3. History of thoracic adhesion due to previous thoracotomy or pleural infection;
4. Patients judged by the investigator to be unsuitable for preoperative transthoracic or transbronchial localization;
5. Inability to complete follow-up or poor compliance.