Eur Radiol:对于HCC患者生存期的预测,影像学表现也许更重要

2021-04-17 shaosai MedSci原创

肝细胞肝癌(HCC)是全球第五大最常见的癌症,也是全球第二大癌症相关死亡原因。国家癌症登记项目显示,HCC的发病率一直在迅速上升,并将在未来15年继续上升。

    肝细胞肝癌(HCC)是全球第五大最常见的癌症,也是全球第二大癌症相关死亡原因。国家癌症登记项目显示,HCC的发病率一直在迅速上升,并将在未来15年继续上升。根据欧洲肝脏研究协会(EASL) 2018年HCC临床实践管理指南,HCC分期系统应包括肿瘤负荷、肝功能和患者临床状态。巴塞罗那临床肝癌(BCLC)和意大利肝癌项目(CLIP)同时纳入了肝功能、肿瘤状态(病变的大小和数量、血管侵犯)和患者临床状态的评价,但目前的标准及分期系统并没有纳入相关影像学表现进入评价。

    近日,发表在European Radiology杂志的一项研究评估了肿瘤ADC值和边缘情况与HCC患者总生存期(OS)和无移植生存期(TFS)的关系,并评估了这两个参数对包括BCLC和CLIP在内的已建立的临床分期系统的附加价值。

    本项IRB批准的回顾性研究共收集了304例HCC患者的临床、实验室检查和影像学资料。使用Cox回归模型来确定潜在的生存预测因子。使用递归划分测试来确定对患者OS进行分层的最佳ADC截断值。根据巴塞罗那临床肝癌(BCLC)和意大利肝癌项目(CLIP)对患者进行分层。将二元ADC值(高于与低于临界值)和肿瘤边缘(清晰与不清晰)整合到BCLC和CLIP中。根据有或没有影像学表现的标准准则比较患者的OS和TFS。

    基线时,肿瘤ADC值低且边缘清晰的患者(良好的影像学表现)比ADC值高且边缘不清晰的患者(不佳的影像学表现)生存期更长(中位OS分别为43个月和7个月)(p < 0.001)。在调整了人口统计学、BCLC和CLIP分期以及肿瘤负荷后,肿瘤ADC值和边缘情况仍然是重要的独立生存预测因子。整合肿瘤ADC值和边缘情况可以使BCLC组和CLIP组的OS预测能力分别提高9%和6%。

图1 ADC值和肿瘤边缘(a)、BCLC(b)和CLIP(c)的总体生存曲线

图2 将良好和不佳的影像学表现(肿瘤ADC值和边缘情况)整合到BCLC (a)和CLIP (b)分期中,将每个分期分为中位OS差异显著的3个亚组。虚线表示在整合影像学表现之前BCLC / CLIP分期的生存曲线,红色曲线表示对应BCLC/CLIP分期及ADC值低且边缘清晰;绿色曲线表示对应BCLC/CLIP分期及ADC值低且边缘清晰;橙色曲线表示对应BCLC/CLIP分期及ADC值高且边缘不清。

图3 BCLC和CLIP整合影像学表现(肿瘤ADC值和边缘情况)的总生存曲线。a 将良好(实线)和不佳(虚线)的影像学表现整合到每个阶段后,3个BCLC分期的生存曲线。b将良好(实线)和不佳(虚线)的影像学表现整合到每个阶段后,3个CLIP分期的生存曲线。在缺乏良好的影像学表现的情况下,无论BCLC和CLIP分期如何,OS均较短。

    将肿瘤ADC值和边缘情况纳入目前的HCC分期系统可以显著提高这些标准在患者OS和TFS方面的预测。

原始出处:

Mounes Aliyari Ghasabeh,Mohammadreza Shaghaghi,Ankur Pandey,et al. Integrating baseline MR imaging biomarkers into BCLC and CLIP improves overall survival prediction of patients with hepatocellular carcinoma (HCC).

DOI:10.1007/s00330-020-07251-4

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    2021-04-22 科研科研科研

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    2021-04-19 jiyangfei
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