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一个辐射疗法平台,使直立圆束计算机断层扫描和未来在现有光子疗法机器上进行直立治疗

James C Korte^1,2, Mark Wright³, Prem G Krishnan⁴

¹Department of Physical Science, Peter MacCallum Cancer Centre, Melbourne, Australia.

Medical physics

|November 18, 2024

概括

一个新的便携式平台使直立辐射疗法成为可能,为具有定位挑战的患者提供了替代方案. 该设备支持圆束计算机断层扫描 (CBCT) 成像,以改善图像引导辐射疗法.

科学领域:

医学物理医学物理
辐射瘤学辐射瘤学
生物医学工程生物医学工程

背景情况:

传统的放射治疗位置可能会导致患者的不适和并发症.
一种新型的便携式旋转平台已经开发出来,可以实现直立辐射治疗.
该设备可以与现有的光子处理机器集成,用于多功能应用.

研究的目的:

设计,制造和严格测试一个设备,以促进直立辐射治疗.
建立多学科合作,以确保满足临床和技术要求.
该设备是临床试验的组成部分,该试验评估肺癌和头部/部癌症的直立成像.

主要方法:

对美国平民人口数据进行设备重量和物理约束的评估.
在治疗室中评估平台旋转精度和设置位置的可复制性.
与现有机器同步平台运动,用于直立圆束计算机断层扫描 (CBCT) 成像,用幻影评估位置精度.

主要成果:

该平台容纳了相当一部分成年人群,体重限制为125公斤,具体的身体尺寸.
证明了高的角度精度 (±0.15°) 和可重现的定位 (±0.04mm转移,±0.025°旋转).
直立CBCT成像实现了可重现的幻影定位,具有最小的翻译 (±0.07毫米) 和旋转 (±0.22°) 不确定性.

结论:

开发的平台适合在图像导向放射治疗中评估形束计算断层扫描 (CBCT).
促进对患者体验,稳定性,解剖学变化和直立姿势治疗的研究.
建议包括材料改进,增强同步和增加未来治疗的重量容量.

关键词:

圆束计算断层扫描 (CBCT) 是一种头部和部癌症头部和部癌症肺癌是一种肺癌.医疗器械医疗器械医疗器械立式辐射疗法是一种直立式辐射治疗.

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