论文标题

用于预防光子和粒子束治疗计划中的交互式碰撞的开源平台

An open-source platform for interactive collision prevention in photon and particle beam therapy treatment planning

论文作者

Hueso-González, F, Wohlfahrt, P, Craft, D, Remillard, K

论文摘要

我们提出了一个开源平台,以帮助医疗剂量剂,以防止在光子或颗粒梁治疗计划期间龙门头和患者或沙发之间的碰撞。该通用框架使用特定计划软件的本机脚本接口来导入处理机元素的STL文件。这些与轮廓或扫描的患者表面一起在3D中可视化。带有滑块的图形对话框可以通过实时反馈进行龙门和沙发的互动旋转。为了防止未来的重建,治疗计划者可以提前评估并排除束角,从而导致潜在的碰撞风险。该软件平台在GitHub上公开可用,并已通过实际患者计划进行了验证。此外,通过使用手持式智能手机执行的全身幻影的3D表面扫描对完整患者的几何形状进行结合。通过这项研究,我们旨在最大程度地减少因碰撞以及治疗延迟和不定期消费人力而导致的风险。可以在治疗计划阶段无需简化临床工作流程。通过确保对计划可行性进行实时验证,该脚本可能会提高使用计划者可能会回避其他方式的最佳沙发角度的使用。

We present an open-source platform to aid medical dosimetrists in preventing collisions between gantry head and patient or couch during photon or particle beam therapy treatment planning. This generic framework uses the native scripting interface of the particular planning software to import STL files of the treatment machine elements. These are visualized in 3D together with the contoured or scanned patient surface. A graphical dialog with sliders allows the interactive rotation of the gantry and couch, with real-time feedback. To prevent a future replanning, treatment planners can assess in advance and exclude beam angles resulting in a potential risk of collision. The software platform is publicly available on GitHub and has been validated for RayStation with actual patient plans. Furthermore, the incorporation of the complete patient geometry was tested with a 3D surface scan of a full-body phantom performed with a handheld smartphone. With this study, we aim at minimizing the risk of replanning due to collisions and thus of treatment delays and unscheduled consumption of manpower. The clinical workflow can be streamlined at no cost already at the treatment planning stage. By ensuring a real-time verification of the plan feasibility, the script might boost the use of optimal couch angles that a planner might shy away from otherwise.

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