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Published on: April 21, 2013
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A novel navigation system to guide metallic foreign body extraction.
Bin He1, Chao Xu2, Yingdelong Mao2
1The Second Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, 310005, China. hebin988@163.com.
Summary
A new laser-guided navigation system precisely locates metallic foreign bodies (MFBs) for minimally invasive extraction. This technique reduces radiation exposure and complexity, offering a highly accurate and efficient surgical approach.
Area of Science:
- Medical Imaging
- Surgical Navigation
- Minimally Invasive Procedures
Background:
- Metallic foreign bodies (MFBs) in soft tissue present health risks.
- Conventional navigation systems for MFB extraction often involve high radiation exposure.
Purpose of the Study:
- To evaluate a surgical approach visualization and navigation system for percutaneous MFB localization and guidance.
- To determine if this system reduces radiation dosage and complexity compared to conventional methods.
Main Methods:
- A novel technique using a visualization and navigation system was employed for percutaneous MFB extraction.
- The system involved displaying the MFB, projecting a laser beam, indicating needle trajectory, and guiding extraction.
- 76 patients underwent MFB extraction using this method.
Main Results:
- All 76 metallic foreign bodies were successfully extracted in a single operation.
- No systemic complications were reported.
- The average intra-operative fluoroscopy use was 1.89 times, with procedure times ranging from 2 to 11 minutes.
Conclusions:
- The combined laser positioning and navigation system offers a novel, accurate, and efficient surgical approach for MFB extraction.
- This technique shows promise for reducing radiation exposure in interventional procedures.

