Throughout the last years, carbon‐fibre‐reinforced PEEK (CFP) pedicle screw systems were introduced to replace standard titanium alloy (Ti) implants for spinal instrumentation, promising improved radiotherapy (RT) treatment planning accuracy. We compared the dosimetric impact of both implants for intensity modulated proton (IMPT) and volumetric arc photon therapy (VMAT), with the focus on uncertainties in Hounsfield unit assignment of titanium alloy.

中文翻译：

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稳定脊柱植入物在质子和光子放射治疗计划中的剂量学影响：标准钛合金与不透射线的碳纤维增强PEEK系统。

在过去的几年中，碳纤维增强的PEEK（CFP）椎弓根螺钉系统被引入，以取代用于脊柱器械的标准钛合金（Ti）植入物，有望提高放射治疗（RT）的治疗计划准确性。我们比较了两种植入物对强度调制质子（IMPT）和体积电弧光子疗法（VMAT）的剂量学影响，重点是钛合金在Hounsfield单元分配中的不确定性。