胸腹部肿瘤精确定位穿刺器械的研制及应用研究  

Development and application research on thoracic-abdominal tumor precise positioning puncture devices

作　　者：陈德路 

机构地区：[1]山东省聊城市中医医院放射治疗中心,252000

出　　处：《国际生物医学工程杂志》2013年第2期111-115,共5页International Journal of Biomedical Engineering

摘　　要：目的 为提高胸腹部肿瘤穿刺准确率,研制一种胸腹部肿瘤精确定位穿刺器械.方法 借鉴胸腹部肿瘤精确放射治疗的定位摆位原理和等中心多角度非共面照射原理,采用肿瘤放射治疗计划系统（TPS）内的肿瘤中心空间位置测量方法和放疗摆位坐标系转移方法,研制胸腹部肿瘤定位穿刺器械.结果 利用该穿刺器械进行26例胸部肿瘤穿刺,均一次穿刺成功,准确率达到了100％.肿瘤中心点（预穿刺点）与实际穿刺点（穿刺针尖实际到达处）在空间内的平均误差是2.59 mm;皮肤标记点在空间内的平均位移距离是0.56 mm.结论 利用新研制的胸腹部肿瘤定位穿刺器械进行肿瘤穿刺,减小了穿刺对医师经验和技术的依赖性,降低了穿刺难度,可明显提高穿刺准确率,缩短穿刺操作时间,值得推广.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.

关 键 词：肿瘤 穿刺 定位误差 坐标系 

分 类 号：R318.6[医药卫生—生物医学工程]