Development and application research on thoracic-abdominal tumor precise positioning puncture devices
10.3760/cma.j.issn.1673-4181.2013.02.012
- VernacularTitle:胸腹部肿瘤精确定位穿刺器械的研制及应用研究
- Author:
Delu CHEN
- Publication Type:Journal Article
- Keywords:
Cancer;
Puncture;
Positioning error;
Coordinate system
- From:
International Journal of Biomedical Engineering
2013;(2):111-115
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the development and application of thoracic-abdominal tumor precise positioning puncture devices.Methods Based on the principle of locating and pendulum,as well as the isocenter multi-angle non-coplanar light principle on the chest and abdomen precise radiation therapy,the thoracic-abdominal tumor precise positioning puncture devices was developed with the use of tumor center spatial location method and radiotherapy positioning coordination system transfer method of radiation oncology treatment planning system (TPS).Results The device was applied to puncture chest tumor,reaching 100％ accuracy rate of one time biopsy.The average error in the space between tumor center (pre-puncture points) and actual puncture point (the actual arrival at the needle tip) was 2.59 mm,and the average displacement in the space distance of skin marker was 0.56 mm.Conclusion Using the newly developed thoracic-abdominal tumor precise positioning puncture devices can reduce the dependence on doctor's experience and the technique,as well can significantly improve the accuracy rate of puncture.As a result,it is a promising device which can be put in application.
