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Updated: Jun 29, 2025
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Electromagnetic Navigation Transthoracic Nodule Localization for Minimally Invasive Thoracic Surgery
Published on: May 4, 2022
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Comparison of laser guidance and freehand hook-wire for CT-guided preoperative localization of pulmonary nodules
Zijian Li1,2, Ziyue Zhou1,2, Kunpeng Feng1,2
1Department of Thoracic Surgery, The First Affiliated Hospital of Soochow University, Medical College of Soochow University, Suzhou, 215000, China.
Journal of Cardiothoracic Surgery
|April 5, 2024
Summary
Laser guidance offers more precise pulmonary nodule localization with shorter durations and fewer CT scans than freehand hook-wire methods. However, complication rates for pneumothorax, hemorrhage, and dislodgement remain similar between both techniques.
Area of Science:
- Thoracic Surgery
- Medical Imaging
- Interventional Pulmonology
Background:
- Precise preoperative localization of small pulmonary nodules is critical for successful VATS surgery.
- Deeply located nodules present significant localization challenges.
Purpose of the Study:
- To compare the efficacy and safety of laser guidance versus freehand hook-wire for CT-guided pulmonary nodule localization.
- To evaluate localization precision, duration, and complication rates.
Main Methods:
- Retrospective study of 164 patients undergoing Uni-port VATS with either laser or freehand hook-wire localization.
- Comparison of localization success, complication rates, and risk factors between the two groups.
Main Results:
- Laser guidance demonstrated significantly shorter localization duration and fewer CT scan times (p<0.001).
- The hook-wire was positioned closer to the nodule with laser guidance (p<0.001).
- No statistically significant differences were observed in pneumothorax, hemorrhage, or hook-wire dislodgement rates between the groups.
Conclusions:
- Laser guidance provides superior precision, reduced localization time, and decreased CT scan requirements compared to the freehand method.
- Both laser guidance and freehand hook-wire localization exhibit comparable safety profiles regarding common complications.
