影响启动适应性放射治疗的需要的因素
Nouran Muhammed Roby1, Mohamed Hassan2, Mohamed A Aboelkasem2
1Clinical Oncology Department, Ahmed Maher Teaching Hospital, Cairo, Egypt.
Journal of immunotherapy and precision oncology
|February 8, 2024
概括
适应性放射治疗 (ART) 有助于管理肺癌的不确定性. 在第二周的早期适应可以通过成像预测,而在第四周的晚期适应是通过肺功能和心脏测试表明的.
科学领域:
- 辐射瘤学 辐射瘤学
- 医学物理 医学物理
- 肺部病理学 肺部病理学
背景情况:
- 适应性放射治疗 (ART) 解决了癌症治疗中的解剖学和生物变异.
- 然而,ART是时间密集的,最佳时间和患者选择仍然不清楚.
研究的目的:
- 确定适应性放射治疗 (ART) 在肺癌患者中启动的最佳时间.
- 为了确定治疗期间不同时间点适应需求的预测因素.
主要方法:
- 一项前性研究涉及30名患有有限阶段肺癌的患者,他们接受3D合规放射治疗和化疗.
- 在第2周和第4周进行计算机断层扫描 (CT) 扫描,以评估适应需求.
- 在基线和随访时进行了肺功能测试和心声回声学.
主要成果:
- 在第2周和第4周观察到计划目标量 (PTV) 的显著减少.
- 适应改善了目标覆盖率和降低了处于风险的器官剂量.
- 第2周的适应与符合性指数和食道剂量相关;第4周的适应与肺功能和心声回声学发现相关.
结论:
- 符合性指数和食道剂量预测了在第2周需要ART的需求.
- 肺功能和心声回声学预测在第4周需要ART.
- 这些发现有助于优化ART时间和肺癌患者选择.
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