Kanehira Takahiro, Svensson Stina, van Kranen Simon, Sonke Jan-Jakob
Department of Radiation Oncology, The Netherlands Cancer Institute, 1066 CX Amsterdam, The Netherlands.
RaySearch Laboratories AB, Stockholm, Sweden.
Phys Imaging Radiat Oncol. 2020 May 29;14:39-42. doi: 10.1016/j.phro.2020.05.005. eCollection 2020 Apr.
Accurate estimation of the daily radiotherapy dose is challenging in a multi-institutional collaboration when the institution specific treatment planning system (TPS) is not available. We developed and evaluated a method to tackle this problem. Residual errors in daily estimations were minimized with single correction based on the planned dose. For nine patients, medians of the absolute estimation errors for targets and OARs were less than 0.2 Gy ( ), 0.3 Gy ( ), and 0.1 Gy ( ). In general, mimicking errors were significantly smaller than dose differences caused by anatomical changes. The demonstrated accuracy may facilitate dose accumulation in a multi-institutional/multi-vendor setting.
在多机构合作中，如果无法获取各机构特定的治疗计划系统（TPS），准确估算每日放疗剂量具有挑战性。我们开发并评估了一种解决此问题的方法。基于计划剂量进行单次校正，可将每日估算中的残余误差降至最低。对于9名患者，靶区和危及器官绝对估算误差的中位数分别小于0.2 Gy（ ）、0.3 Gy（ ）和0.1 Gy（ ）。一般来说，模拟误差显著小于由解剖结构变化引起的剂量差异。所展示的准确性可能有助于在多机构/多供应商环境中进行剂量累积。
