使用Kv-Cone束CT图像作为患者特定的质量保证工具的可行性研究
Bose Nathaniel V1, Srinidhi Gururajarao Chandraguthi2, Shreekripa Rao1
1Medical Radiation Physics programme Department of Radiation Oncology Manipal College of Health Professions,Manipal Academy of Higher Education, Manipal. 576104, Karnataka, India.
千伏圆束计算机断层扫描 (kV-CBCT) 可以有效地评估宫癌患者的输送辐射剂量,与规划CT扫描进行日常验证良好相关.
科学领域:
- 医学物理 医学物理
- 辐射瘤学 辐射瘤学
- 辐射疗法质量保证 辐射疗法质量保证
背景情况:
- 患者特异性质量保证 (PSQA) 传统上比较计算机断层扫描 (CT) 扫描的计划和交付辐射流量.
- 常规PSQA对于验证癌症治疗中放射治疗的准确性至关重要.
研究的目的:
- 评估千伏电压圆束计算机断层扫描 (kV-CBCT) 作为评估宫癌患者输送辐射剂量的工具.
- 通过使用kV-CBCT成像,使计划剂量分配的每日验证和评估.
主要方法:
- 该研究包括13名在2023-2024年期间接受治疗的宫癌患者.
- 摩纳哥软件 (v5.11.03) 用于图像注册,细分和治疗计划.
- 使用PTW MEPHYSTO软件进行了计划中的流利性验证.
主要成果:
- 剂量分配显示了kV-CBCT和基于常规CT的计划之间的微小,统计学上无意义的差异.
- 对kV-CBCT图像的计划流动性通常符合玛标准,在特定解剖区域有一些偏差.
- kV-CBCT证明了每日剂量验证的潜力.
结论:
- 剂量分布和kV-CBCT图像的计划流动性与计划宫癌CT图像的相关性很好.
- kV-CBCT图像支持每日验证和评估放射治疗中的计划剂量分配.
- 这种方法提高了宫癌治疗计划的质量保证.
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