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关于直肠癌的GTV划分和剂量升级的ESTRO共识指南
Giuditta Chiloiro1, Angela Romano1,2, Regina Beets-Tan3,4,5
1Fondazione Policlinico Universitario "A. Gemelli" IRCCS, Rome, Italy.
Clinical and translational radiation oncology
|March 5, 2026
概括
在直肠癌中剂量升级,定义为超过54 Gy的放射治疗,使用基于MRI的GTV定义. 这种方法支持在精选患者中保存器官.
科学领域:
- 在瘤学瘤学.
- 辐射瘤学 辐射瘤学
- 医疗成像医学成像
背景情况:
- 结直肠癌的治疗往往涉及到放射治疗.
- 确定瘤总体积 (GTV) 对于精确的辐射向至关重要.
- 标准辐射疗法剂量可能会限制治疗疗效和器官保存.
研究的目的:
- 建立关于直肠癌放射治疗剂量升级参数的共识.
- 定义磁共振成像 (MRI) 在定义剂量升级治疗的GTV中的作用.
- 探索通过剂量升级放射治疗来保护器官的潜力.
主要方法:
- 利用Delphi方法来实现专家的共识.
- 专注于与直肠癌放射治疗相关的临床和成像领域.
- 纳入基于MRI的GTV定义作为一个关键组件.
主要成果:
- 在剂量升级的定义上达成共识 (放射治疗剂量>54 Gy).
- 证实了基于MRI的GTV定义对剂量升级的直肠癌放射治疗的中心作用.
- 确定剂量升级作为一种战略,支持在精选的直肠癌患者器官保存.
结论:
- 专家们就直肠癌的剂量升级达成共识.
- 基于MRI的GTV定义对于先进的直肠癌放射治疗技术至关重要.
- 剂量升级放射疗法在特定的直肠癌病例中提供了器官保存的潜力.
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