在初级中枢神经系统淋巴瘤中,剩余扩散权重成像高强度信号可以预测早期复发
Shumpei Onishi1, Fumiyuki Yamasaki2, Vishwa Jeet Amatya3
1Department of Neurosurgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima, 734-8551, Japan.
Journal of neuro-oncology
|October 13, 2023
概括
扩散权重成像 (DWI) 可以预测初级中枢神经系统淋巴瘤 (PCNSL) 患者的复发. 治疗后残留的DWI高强度信号表明较短的无进展生存期,这表明其在评估PCNSL治疗有效性的价值.
科学领域:
- 神经辐射学神经辐射学
- 在瘤学瘤学.
- 医疗成像医学成像
背景情况:
- 主要中枢神经系统淋巴瘤 (PCNSLs) 通常使用后对比T1加权成像 (T1WI) 进行评估.
- 对T1WI的不完全增强可能表明残留瘤,需要改进评估治疗反应的方法.
- 扩散权重成像 (DWI) 正在探索其在PCNSL患者中预测复发的潜力,这些患者达到完全响应 (CR) /未确认的CR (CRu).
研究的目的:
- 评估扩散加权成像 (DWI) 在预测中枢神经系统原发性淋巴瘤 (PCNSL) 患者中复发的实用性.
- 确定DWI是否可以提高治疗响应评估的准确性,超出传统的T1WI.
主要方法:
- 分析了54名获得CR/CRu的PCNSL患者.
- 患者根据治疗后残留的DWI高强度信号的存在或不存在来分组.
- 卡普兰-梅尔分析用于评估整体存活率 (OS) 和无进展存活率 (PFS).
主要成果:
- 在18名患者中观察到残留的DWI高强度信号.
- R-MPV疗法与剩余DWI高强度信号的发病率较低有关 (p=0.0453).
- 剩余DWI高强度信号的患者的PFS中位数显著较短 (14.0个月与85.1个月,p<0.0001).
结论:
- 治疗后的残留DWI高强度信号与PCNSL中较短的无进展生存时间有关.
- DWI作为一个有价值的补充成像序列,用于预测PCNSL患者在T1WI上CR/CRu的早期复发.
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