鼻咽癌放疗低熔点铅挡块制作误差相关因素分析  

Analysis of Interrelated Factors About of Production Error of Low Melting Point Lead Block Piece in Radiotherapy of Nasopharyngeal Carcinoma

作　　者：丁秋娥[1] 姜仁伟[1] 王思阳[1] 潘启勇[1] 朱寿武[1] 程志斌[1] 

机构地区：[1]中山大学附属第五医院,广东珠海519000

出　　处：《中国医学创新》2012年第24期144-145,共2页Medical Innovation of China

摘　　要：目的:探讨鼻咽癌放射治疗面颈联合照射野低熔点铅挡块制作误差的原因。方法:对不合格的低熔点铅挡块进行观察和分析,重新分为四组进行制作,对照分析和评估。结果:鼻咽癌放射治疗面颈联合照射野低熔点铅挡块误差与技师操作、切割机精度、泡沫材料的密度、熔铅炉的温度相关(P<0.05)。结论:加强制作铅挡块技师的培训,调试好制作设备的精度,保证泡沫材料的高密度,控制好熔铅炉的温度,能够减少鼻咽癌面颈联合野铅挡块的综合误差。Objective： To explore cause of error of radiotherapy of nasopharyngeal carcinoma face-neck combined radiation fields irregular wild low meiting point lead block piece. Method： To analyze the low melting point lead block pieces which were unqualified. Result： The error was related to the operation of technician, cutting machine precision, foam density, melting furnace temperature lead（P〈0.05）. Conclusion： To strengthen the production of lead block the technician training, debug the accuracy of production equipment well, ensure the high density of the foam, control the temperature of molten lead furnace well, can reduce rate of the face-neck combined radiation fields lead block a comprehensive error.

关 键 词：鼻咽癌 放疗 低熔点铅挡块 验证误差 

分 类 号：R739.63[医药卫生—肿瘤]