Experimental study of magnetic tracer technique in the localization of pulmonary nodules in dogs
- VernacularTitle:磁示踪技术在犬肺结节定位中的实验研究
- Author:
Huan-chen SHA
1
;
Miao-miao ZHANG
;
Jia-hui WAN
;
Qiu-ye ZHONG
;
Rui-min GONG
;
Yi LYU
;
Xiao-peng YAN
Author Information
- Publication Type:Journal Article
- Keywords: magnetic tracer technique; magnetic surgery; pulmonary nodule; beagle; magnet
- From: Journal of Regional Anatomy and Operative Surgery 2025;34(10):841-845
- CountryChina
- Language:Chinese
- Abstract: Objective To investigate the feasibility of magnetic tracer technique for locating pulmonary nodules.Methods A tracer magnet and a matching puncture instrument were designed by ourselves for locating pulmonary nodules.After preliminarily verifying the feasibility of the operation in the isolated lung,four beagle dogs were used as animal models to perform puncture localization of the assumed lesions in the upper lobe of the right lung under the guidance of X-ray by using self-designed tracer magnets and puncture instruments,and the positioning effect was observed and evaluated after thorax opening.The operation time required for the tracer magnet implantation,whether there is bleeding at the puncture site,whether the tracer magnet is displaced,and the positioning time of pulmonary nodules after thorax opening were recorded.Results Two tracer magnets were successfully inserted into the upper lobe of the right lung under X-ray guidance in four beagle dogs,and the magnets were successfully attracted and fixed.The median insertion time of the tracer magnet was 5 minutes(4 to 7 minutes),and the insertion process was smooth without bleeding at the puncture site.After thorax opening,oval forceps were used to conveniently locate the location of the tracer magnet,achieving accurate positioning of pulmonary nodules with a median positioning time of 13 seconds(10 to 17 seconds),and the tracer magnet did not shift during the whole process.Conclusion The magnetic tracer technique is simple to operate and pricise for localization of pulmonary nodules.With further optimization of the operation process,this technique is expected to be applied in clinic.
