辐射诱导的 Xerostomia:用F-FDG PET/CT进行评估
Gözde Mütevelizade1, Bilal Çağrı Bozdemir1, Nazım Aydın2
1Celal Bayar University Faculty of Medicine, Department of Nuclear Medicine, Manisa, Türkiye.
辐射剂量会影响头癌患者的唾液腺功能和静止. 18F-FDG PET/CT显示了剂量依赖的代谢变化,有助于预测唾液功能障碍.
科学领域:
- 在瘤学瘤学.
- 辐射疗法 辐射疗法
- 核医学就是核医学.
背景情况:
- Xerostomia (口腔干燥) 是用于头癌的放射治疗的常见副作用.
- 先进的辐射疗法技术旨在尽量减少唾液腺损伤,但异口仍然存在.
- 评估唾液腺功能及其与辐射剂量的关系对于管理治疗毒性至关重要.
研究的目的:
- 为了研究辐射剂量,使用18F-FDG PET/CT的唾液腺的代谢变化和异位静止症严重程度之间的联系.
- 探索PET衍生的生物标志物在预测唾液功能障碍方面的实用性.
主要方法:
- 对107名头癌患者进行了回顾性分析,这些患者接受了强度调节或体积调节的弧线治疗.
- 从治疗前和治疗后的PET/CT扫描中评估临床异构症的严重程度,辐射剂量-体积参数和代谢变化 (ΔSUVmax, ΔSUVmean).
主要成果:
- 中度至重度的异口症影响了63.6%的患者.
- 较高的瘤阶段和结节转移与增加的异位症严重程度有关.
- 剂量-体积参数和 ΔSUV 值与异构显著相关,腺体显示出更大的剂量依赖的代谢下降.
结论:
- 18F-FDG PET/CT有效捕捉了辐射诱导的唾液腺损伤,与异口症相关.
- 来自PET的生物标志物提供了超越传统剂量测量对唾液功能障碍预测的补充洞察力.
- 瘤负担也会影响异口腔风险,强调这种毒性的多因素性质.
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