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目的研究华盼YC2D-A型全自动热丝切割机在低熔点铅挡块中应用。方法通过对本科近一年来制作的200余块鼻咽癌常规放射治疗铅挡块和300余块三维适形放射治疗铅挡块的验证,对全自动热丝切割机制作的挡块进行分析和评价。结果有84%以上的铅挡块经模拟定位机的验证符合临床使用要求,约有16%的挡块需修改或重新制作,与以往的热丝切割机比较有明显改善。结论应用华盼YC2D-A型全自动热丝切割机制作低熔点铅挡块,提高了铅挡块制作合格率。
Aim To study the application of HuaTing YC2D-A automatic hot wire cutting machine in the low melting point lead block. Methods By the past year to produce more than 200 years of conventional radiotherapy of nasopharyngeal lead block and more than 300 three-dimensional conformal radiotherapy lead stopper verification, automatic hot wire cutting machine stopper produced by analysis and Evaluation. As a result, over 84% of the lead stoppers verified by the simulator were in compliance with the clinical requirements. About 16% of the stoppers had to be modified or reworked, which markedly improved compared with the conventional hot-wire cutters. Conclusion The application of Hua-pan YC2D-A automatic hot wire cutting machine made of low melting point lead stopper, improve the lead stopper production pass rate.