乳腺放射治疗计划稳健性的比较研究:具有稳健优化的体积调节弧治疗计划与手动闪光方法对比
Ray C K Chan1, Curtise K C Ng2,3, Rico H M Hung4
1Department of Health Technology and Informatics, Faculty of Health and Social Sciences, The Hong Kong Polytechnic University, Hong Kong SAR, China.
Diagnostics (Basel, Switzerland)
|November 24, 2023
概括
强大的优化 (RO) 体积调制弧线治疗计划比乳房放射治疗的手动闪光 (MF) 计划更强大. RO计划显示剂量变化明显更好,以达到目标体积和面临风险的器官.
科学领域:
- 辐射瘤学 辐射瘤学
- 医学物理 医学物理
- 放射治疗规划 放射治疗规划
背景情况:
- 手动闪光 (MF) 是目前计划乳腺放射治疗的标准.
- 一项先前的研究表明,强大的优化 (RO) 体积调制弧线疗法 (VMAT) 计划比MF计划更强大.
- 需要对更大的样本进行进一步的调查,以验证这些发现.
研究的目的:
- 为了比较RO和MF的计划稳定性,用于乳腺放射治疗的VMAT技术.
- 评估不同情景下对临床目标体积 (CTV) 和危险器官 (OAR) 的剂量变化.
- 为了确定RO是否在较大的患者队列中提供了与MF相比更高的稳定性.
主要方法:
- 对34名女性乳腺放射治疗患者的回顾性分析.
- 评估计划的稳定性,使用名义和最坏情景之间的测量体积/剂量差异 (ΔV/ΔD).
- 在RO和MF方法之间的稳定性值的统计比较,使用对对的样本t试验.
主要成果:
- 与MF相比,RO方法显示大多数CTV和OAR参数的ΔV/ΔD值较小.
- 对于RO,在各种CTV参数和心脏剂量指标上观察到在ΔV/ΔD的统计显著改善 (p < 0.001-0.012).
- 这两种技术都产生了临床上可接受的计划,但RO显示了增强的稳定性.
结论:
- 强大的优化 (RO) 方法通常比手动闪光 (MF) 更强大,用于计划乳腺放射治疗.
- 由于更简单的规划过程,RO VMAT可以提供更好的稳定性,并可能提高工作流程效率.
- 这些发现支持在临床实践中将RO视为MF的潜在优越替代品.
关键词:
癌症 癌症 癌症 癌症 癌症胸壁的移位 胸壁的移位剂量测量方法 剂量测量方法这是一个错误的错误错误.有风险的器官.辐射剂量辐射剂量辐射治疗疗法 辐射治疗疗法皮肤闪光灯的皮肤闪光灯目标体积目标体积的目标量.不确定性是一种不确定性.更多相关视频
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