基于原子核的辐射疗法
Natalia Knake1, Rafał Prokopowicz1, Michał A Gryziński1
1National Centre for Nuclear Research, 7 Andrzeja Sołtana St., 05 - 400 Otwock, Poland.
概括
-4 (4He) 核,或α粒子,在各种医学辐射疗法中表现有前途. 开发准确的剂量成像方法对于有效的治疗计划和对生物反应的监测至关重要.
科学领域:
- 核医学和辐射瘤学.
- 探索用于治疗的-4 (4He) 核 (α粒子).
背景情况:
- 4He核具有医疗用途的有利物理和生物特性.
- 目前的应用包括通过扩散阿尔法发射器辐射疗法 (DaRT) 的内部放射疗法 (IR) 和基于阿尔法发射器的放射药物疗法 (αRT).
- 中子捕获疗法 (BNCT) 使用化合物作为α粒子的来源.
研究的目的:
- 为提供当前和临床前基于4He核的治疗方法的概述.
- 为了强调治疗剂量成像在4He粒子治疗期间的方法.
- 突出阿尔法粒子辐射疗法的剂量测量和治疗规划方面的挑战.
主要方法:
- 审查现有的临床和临床前研究关于基于4He核的疗法.
- 讨论成像阿尔法粒子的间接方法,并伴随着7Li核的分布.
- 对吸收剂量模型的放射生物学参数的探索,考虑协同效应.
主要成果:
- 自20世纪90年代以来未在临床上使用的高能4离子在2021年重新进行了患者治疗的研究.
- 对α粒子和7Li核的直接测量是不可能的,需要间接成像技术.
- 新兴的方法旨在将物理剂量分配与治疗规划的生物反应相关联.
结论:
- 准确的体内剂量分配监测和生物反应评估对于4He疗法至关重要.
- 开发先进的成像技术和放射生物模型对于优化α粒子辐射治疗至关重要.
- 对基于4He核的治疗方法的持续研究具有改善癌症治疗的巨大潜力.
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