鼻咽癌放疗的低熔点铅挡块制作及质量控制  

The production and quality control of low melting point lead block in the nasopharyngeal carcinoma radiotherapy

作　　者：丁秋娥[1] 王思阳[1] 潘启勇[1] 叶有强[1] 程志斌[1] 

机构地区：[1]中山大学附属第五医院,珠海519000

出　　处：《中国临床实用医学》2010年第9期114-115,共2页China Clinical Practical Medicine

摘　　要：目的研究鼻咽癌放射治疗面颈联合照射不规则野低熔点铅挡块的制作流程及质量控制。方法对596件低熔点铅挡块进行制作、验证、分析和评价。结果总合格率为95％（566／596），合格铅挡块综合误差〈2mm。结论加强铅挡块操作技师培训，保证制作设备精度及严格验证能够提高铅挡块的合格率。Objective To study the production process and quality control of low melting point lead block in the nasopharyngeal carcinoma radiotherapy with faciocervieal asymmetric field. Methods We accomplished the production, validation, analysis and evaluation of 596 low melting point lead blocks. Results The total pass rate was 95% （566/596）. The integrated errors of the qualified lead blocks was less than 2 mm. Conclusion It would increase the pass rate of lead blocks if we could strengthen technician training of the lead block operations, ensure the accuracy of production equipment and rigorous examine the blocks.

关 键 词：鼻咽癌放射治疗 低熔点铅挡块 验证 误差 

分 类 号：TG291[金属学及工艺—铸造]