| 郭海亮,陈悦,曾小斌,等.通过分析后装机控制文件解决后装计划部分执行问题[J].中华放射医学与防护杂志,2014,34(4):295-297.Guo Hailiang,Chen Yue,Zeng Xiaobin,et al.Solution to part of the executive problems by analyzing the control files of brachytherapy[J].Chin J Radiol Med Prot,2014,34(4):295-297 |
| 通过分析后装机控制文件解决后装计划部分执行问题 |
| Solution to part of the executive problems by analyzing the control files of brachytherapy |
| 投稿时间：2013-07-22 |
| DOI：10.3760/cma.j.issn.0254-5098.2014.04.015 |
| 中文关键词: 后装计划 控制文件 后续治疗 |
| 英文关键词:Brachytherapy plan Control files Follow-up treatment |
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| 中文摘要: |
| 目的 通过分析和编辑后装机控制文件来解决后装计划部分执行问题。方法 通过记录治疗当时的放射源源强、患者已经受照时间、应用C语言程序追踪到患者部分治疗时紧急回源前最后驻留点位置以及放射源在最后驻留点位置已经驻留的时间，通过编辑后装机控制文件生成后续治疗文件，并应用固体水建立测量模型验证生成后续治疗文件的正确性。结果 对于测量模型中定义的A、B点剂量，Dose A4（后装计划中断前后A点受照剂量之和）与Dose A1（完整执行后装计划A点受照剂量）相差6.12%，Dose B4（后装计划中断前后B点受照剂量之和）与Dose B1（完整执行后装计划B点受照剂量）相差2.09%；MapCheck平面剂量Plane Dose 4（后装计划中断前后MapCheck平面剂量之和）与Plane Dose 1（完整执行后装计划MapCheck平面剂量）都呈现正梨形剂量分布，百分剂量差异4%以内的达到了93.8%，满足临床剂量要求。结论 后续治疗文件可以准确完成患者后装计划中未完成的部分，达到剂量分布要求。 |
| 英文摘要: |
| Objective To solve part of executive problems by analyzing and editing the control files of brachytherapy. Methods By recording the sources of radioactivity, the time when patients were treated and using the program designed by the C language, the source location and the time treated in this location were tracked to the source urgently. By editing the control files, the follow-up treatment files were produced and then tested with a solid water measuring model. Results For the point A,B defined in the measure model, the deviation between Dose A4 and Dose A1 was 6.12%, the deviation between Dose B4 and Dose B1 was 2.09%. For the planar dose measure in the MapCheck, Plane Dose 4 and Plane Dose 1 rendered as pear-shaped dose distribution,and the dose difference less than 4% reached 93.8%. The point dose and plane dose meeted the clinical standards. Conclusions The follow-up treatment files can complete the part of the unfinished brachytherapy plan exactly and achieve requirements of the dose distribution. |
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