用RayStation治疗计划系统对CyberKnife跟踪精度进行端到端评估
Nicolas Perichon1, Marie Fargier-Voiron1, Mireille Conrad1
1Swiss Radio-Oncology Network, Clinique Générale-Beaulieu, Chemin de Beau-Soleil 20, CH, 1206 Genève, Switzerland.
Zeitschrift fur medizinische Physik
|January 30, 2026
概括
对于CyberKnife的立体治疗,RayStation的治疗计划系统 (TPS) 证明了精确的跟踪. 端到端的测试证实了RayStation的存在.
科学领域:
- 医学物理 医学物理
- 辐射瘤学 辐射瘤学
- 放射性外科手术 放射性外科
背景情况:
- 对于CyberKnife的立体治疗,需要精确的剂量计规划和跟踪算法.
- 精度 (Accuray) 是CyberKnife.的已建立的治疗计划系统 (TPS).
- 射线站 (射线搜索实验室) 是CyberKnife规划中的一个较新的TPS选项.
研究的目的:
- 为了评估RayStation TPS计划对CyberKnife的跟踪精度.
- 使用端到端 (E2E) 测试,将RayStation的跟踪精度与已建立的精密TPS进行比较.
- 为了验证RayStation/CyberKnife处理链的目标准确性,以确保质量.
主要方法:
- 在 RayStation v12A (RS12A) 中生成的图纸进行了 E2E 测试,跨越了各种聚合器和跟踪模式.
- 将RS12A结果与Accuray Precision v3.3.1.0.0 的结果进行比较.
- E2E测试包括在球目标周围提供同心剂量分布,并测量偏差.
主要成果:
- 所有测试配置的RS12A偏差结果都低于国际推值 (<0.95毫米).
- RS12A静态目标结果与Precision的黄金标准一致,考虑到方法不确定性 (0.30毫米).
结论:
- 对于CyberKnife,可以使用RayStation v12A.成功生成端到端的计划.
- 对已建立的处理链进行验证证实了RayStation/CyberKnife系统的目标准确性.
- 这种E2E方法可用于定期目标检查和机器人调整.
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