将强度调制全身辐射 (IMRT-TBI) 纳入未来合作小组临床试验:国家临床试验网络的NRG血液恶性瘤工作组领导的报告
N Kovalchuk1, E Simiele2, M LaRiviere3
1Stanford University, Stanford, CA.
International journal of radiation oncology, biology, physics
|February 19, 2026
概括
针对全身辐射 (TBI) 的强度调节辐射疗法 (IMRT) 需要对多机构试验进行标准化. 制定了共识建议,以确保IMRT-TBI在临床研究中的一致实施和评估.
科学领域:
- 辐射瘤学 辐射瘤学
- 医学物理 医学物理
- 血液学恶性瘤 血液学恶性瘤
背景情况:
- 强度调节辐射疗法 (IMRT) 越来越多地用于全身辐射 (TBI).
- IMRT提供了剂量升级的潜力,同时节省了面临风险的器官.
- 标准化对于多机构临床试验至关重要.
研究的目的:
- 为标准化的多机构实施IMRT-TBI制定共识建议.
- 为了在未来国家临床试验网络 (NCTN) 研究中实现一致的评估.
- 在合作小组协议中解决IMRT-TBI的复杂性.
主要方法:
- 一项调查评估了NRG机构当前的IMRT-TBI规划和交付实践.
- 一个多学科的工作组分析了调查数据,并制定了共识建议.
- 为将IMRT-TBI集成到NCTN协议中,创建了一个标准化模板,涵盖模拟,轮,规划,OAR约束,QA,IGRT,调试,认证和保障.
主要成果:
- 八个拥有广泛IMRT-TBI经验的机构回应了.
- 常见的做法包括为身体上部的VMAT和为身体下部的AP/PA字段,具有特定的OAR约束 (例如,肺平均剂量<8 Gy).
- 对于PTV定义,OAR节省目标,剂量测量约束,质量保证和认证,建立了共识建议.
结论:
- 与2D-TBI相比,IMRT-TBI显示有望降低毒性和提高剂量精度.
- 标准化对于IMRT-TBI在多机构环境中的复杂性至关重要.
- 开发的框架将促进IMRT-TBI的一致实施和临床试验结果评估.
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