治疗后的PET/CT剂量测量,预测肝细胞癌的超动脉放射栓塞后的逆侧叶高
Yeon-Koo Kang1, Minseok Suh2, Jin Woo Choi3
1Division of Nuclear Medicine, Department of Radiology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea.
Korean journal of radiology
|October 13, 2025
概括
使用90Y PET/CT的治疗后剂量测量有效地预测了肝细胞癌 (HCC) 的跨动脉放射栓塞 (TARE) 后的肝脏缩. 将剂量计与血小板计数相结合,可以提高以前未接受过治疗的患者的预测准确度.
科学领域:
- 核医学就是核医学.
- 肝胆瘤学 肝胆瘤学
- 放射性外科手术 放射性外科
背景情况:
- 超动脉放射栓塞 (TARE) 使用基于图像的剂量测量来预测诸如对侧叶高和瘤反应等结果.
- 肝细胞癌 (HCC) 管理通常涉及TARE,需要准确预测治疗后的肝脏变化.
研究的目的:
- 评估TARE 90Y后基于VOXEL的PET/CT剂量测量对以前未接受过治疗的HCC患者肝脏缩的预测能力.
- 确定关键的剂量参数和影响TARE后逆侧肝叶生长的临床因素.
主要方法:
- 对40名先前未接受治疗的HCC患者的回顾性分析,这些患者使用90Y标记的微球接受TARE治疗.
- 从90Y PET/CT生成基于voxel的吸收剂量图,并计算肝脏区域的剂量参数 (平均剂量,P50,P100).
- 测量左叶 (LL) 体积增加通过CT体积测量 2-4个月后TARE和与剂量计和临床因素的相关性分析.
主要成果:
- 中位数LL体积增加为12.7%.
- 非瘤右叶 (NRL) 的平均吸收剂量和P50与LL缩有很强的相关性 (分别为ρ=0.662和ρ=0.672;P<0.001).
- 平均NRL剂量是唯一独立的剂量测量预测因子 (R2 = 0.556),血小板计数也是独立的预测因子 (R2 = 0.221).
结论:
- 在TARE 90Y后的PET/CT剂量测量,特别是与血小板计数相结合时,有效预测在未经治疗的HCC患者中逆侧肝缩.
- 对于LL缩的NRL剂量的预测准确性在保存血小板计数的患者中显著更高.
- 建议进行进一步的前性研究来验证这些预测策略.
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