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| 剂量引导精确放射治疗中三维评价算法设计及实现 | |
| 引用本文： | 王玉,李贵,汪冬,吴宜灿,FDS团队. 剂量引导精确放射治疗中三维评价算法设计及实现[J]. 原子核物理评论, 2012, 29(3): 305-309. DOI: 10.11804/NuclPhysRev.29.03.305 |
| 作者姓名： | 王玉 李贵 汪冬 吴宜灿 FDS团队 |
| 作者单位： | 1.中国科学技术大学核科学技术学院, 安徽 合肥 230027; 2.中国科学院核能安全技术研究所, 安徽 合肥 230031; 3.安徽省精确放疗工程技术研究中心, 安徽 合肥 230031; 4.中国科学院等离子体物理研究所, 安徽 合肥 230031 |
| 基金项目： | 国家自然科学基金青年基金资助项目，安徽省自然科学基金资助项目 |
| 摘 要： | 针对临床剂量学验证中二维评价方法只能反映每张平片上剂量分布情况， 并根据剂量引导精确放疗系统中三维剂量验证需求设计算法实现对三维剂量分布的比较。 根据公式， 在Visual C++控制台下实现剂量偏差、 位置偏差及γ分析三维评价算法。 设计两个计划进行算法验证: 计划1为方野照射等效水， 用于验证算法的正确性； 计划2为适形野照射仿真头模， 用于验证算法的实用性。 结果表明， 计划1中， 对剂量偏差，容许值范围内通过率为100%； 对位置偏差和γ分析, 容许范围内通过率为100%，容许边界值处为100±7.7%。 计划2中， 3种算法通过率分别为88.35%、100%和95.07%。 这说明该算法可用于剂量引导精确放疗系统中实现三维剂量分布的评价。 |
| 关 键 词： | 剂量引导精确放射治疗 三维剂量分布 γ分析 剂量偏差 位置偏差 |
| 收稿时间： | 1900-01-01 |
Realization of 3D Evaluation Algorithm in Dose-guided Radiotherapy |
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| WANG Yu,LI Gui,WANG Dong,WU Yi-can,FDS Team. Realization of 3D Evaluation Algorithm in Dose-guided Radiotherapy[J]. Nuclear Physics Review, 2012, 29(3): 305-309. DOI: 10.11804/NuclPhysRev.29.03.305 | |
| Authors: | WANG Yu LI Gui WANG Dong WU Yi-can FDS Team |
| Affiliation: | 1.School of Nuclear Science and Technology, University of Science and Technology of China, Hefei 230027, China;2.Institute of Nuclear Energy Safety Technology, Chinese Academy of Sciences, Hefei 230031, China;3.Engineering Technology Research Center of Accurate Radiotherapy, Anhui Province, Hefei 230031, China; 4.Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031,China |
| Abstract: | 3D evaluation algorithm instead of 2D evaluation method of clinical dose verification is highly needed for dose evaluation in Dose-guided Radiotherapy.3D evaluation algorithm of three evaluation methods,including Dose Difference,Distance-To-Agreement and γ Analysis,was realized by the tool of Visual C+ + according to the formula.Two plans were designed to test the algorithm: plan 1 was radiation on equivalent water using square field for the verification of the algorithm’s correctness;plan 2 was radiation on the emulation head phantom using conformal field for the verification of the algorithm’s practicality.For plan 1,the dose difference,in the tolerance range has a pass rate of 100%,the Distance-To-Agreement and γ analysis was of a pass rate of 100% in the tolerance range,and a pass rate of 99±1% at the boundary of range.For plan 2,the pass rate of algorithm were 88.35%,100%,95.07% for the three evaluation methods,respectively.It can be concluded that the 3D evaluation algorithm is feasible and could be used to evaluate 3D dose distributions in Dose-guided Radiotherapy. |
| Keywords: | dose-guided radiotherapy 3D dose distribution 7 analysis dose difference distance-to-agree-ment |
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