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束数据调试,验证和SRS陀螺系统的临床实施

Catarina Souto¹, Borja Aguilar², Vânia Dias²

¹IRCA, Hospital Viamed Santa Elena, Madrid, Spain; Mercurius Health, Porto Salvo, Portugal; DFA, Faculdade de Ciências da Universidade do Porto, Porto, Portugal.

Physica medica : PM : an international journal devoted to the applications of physics to medicine and biology : official journal of the Italian Association of Biomedical Physics (AIFB)

|March 22, 2025

概括

启动陀螺射线外科ZAP-X系统需要新的方法. 蒙特卡洛模拟和各种探测器验证了光束数据,证实了系统的存在.

科学领域:

医学物理医学物理
放射治疗技术放射治疗技术
辐射瘤学辐射瘤学

背景情况:

由于其新的设计,ZAP-X陀螺射线手术系统对光束数据采集和验证提出了独特的挑战.
现有的国际指导方针对于这种先进的放射性外科平台缺乏具体的方法和校正因素.

研究的目的:

通过获取和验证ZAP-X系统的光束数据来调用ZAP-X系统的处理计划系统 (TPS).
为ZAP-X系统建立和实施特定于机器和患者的质量保证 (QA) 协议.

主要方法:

使用微,微钻探测器,电离室和塑料闪探测器获取光束数据.
使用SciMoCaTM的蒙特卡洛 (MC) 模拟用于比较和验证.
患者特定的QA涉及人类形象幻影,2D阵列和SciMoCaTM进行全面的剂量评估.

主要成果:

检测器对百分比剂量深度 (PDD) 的一致性在最大剂量深度 (dmax) 的1%以内.
固态探测器与MC数据显示出良好的一致性;微探测器提供了更清晰的半阴影信息.
输出因子测量表明SciMoCaTM和塑料闪光探测器数据之间存在强烈一致 (最大差异为2.1%).

结论:

多种测量方法显示出强烈的一致性,验证了调试过程.
蒙特卡洛模拟对于验证ZAP-X系统的TPS调试数据至关重要.
开发的方法和材料可以帮助其他设施实施这种陀螺射线手术系统.

关键词:

欧盟委员会欧盟委员会在SRS中,它是SRS.小领域剂量计小领域剂量计.这就是ZAP-X®.

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