Euro Radio:影像学检查在胰腺癌M分期的附加价值

2022-02-25 shaosai MedSci原创

胰腺癌是一种侵袭性极强的恶性肿瘤,在所有实性肿瘤中5年生存率最低。除了明显的异质性外,预后不良主要归因于诊断的延迟,约有50%的胰腺癌在最初诊断时已经发生了转移。

胰腺癌是一种侵袭性极强恶性肿瘤,在所有实肿瘤中5年生存率最低。除了明显的异质性外,预后不良主要归因于诊断延迟,约有50%的胰腺癌在最初诊断时已经发生了转移。由于发病率不断上升,据预测,到2030年,胰腺癌将成为美国癌症相关死亡的第二大原因。手术切除通常是指胰腺十二指肠切除术,然后进行辅助化疗,这是唯一的治愈性治疗选择。尽管手术技术和围手术期管理不断改进,但胰腺癌的切除仍然是风险极高,术后死亡率为3-5%。治疗方案的潜在不良反应强调了正确的TNM分类的重要性,其中存在转移是手术切除的主要禁忌症之一。对于M分期,肝脏作为最常见的转移部位尤为重要。胰腺癌的分期检查主要包括胸部、腹部和盆腔的CT扫描,以评估肿瘤的可切除性和排除转移。增强MRI经常作为评估病变范围以及淋巴结、肝转移的替代成像方法。

尽管胰腺癌的诊断和治疗有所改善,但还没有研究从经济角度评估与标准成像(增强CT)相比,联合增强MRI和CT在检测不可切除性病灶方面的利用率及价值近日,发表在European Radiology杂志的一项研究评估了与使用CE-CT的标准成像(SCI)相比,联合CE-MRT/CT评估胰腺癌分期时肝转移的成本效益,为胰腺癌患者的规范化检查流程的制定提供了参考依据

本研究建立了一个基于Markov模拟的决策模型以估计诊断方式的质量调整生命年(QALYs)和终身成本。模型的输入参数是根据最近的文献证据来评估的。支付意愿(WTP)被设定为100,000美元/QALY。为了评估模型的不确定性,进行了确定性和概率性的敏感性分析。 

在基准案例分析中,该模型产生的总成本为185,597美元,CE-MR/CT的疗效为2.347 QALYs,CE-CT为187,601美元,2.337 QALYs。CE-MR/CT的净货币效益(NMB)为49,133美元,CE-MR/CT的净货币效益为46,117美元,显示出CE-CT的主导地位。确定性和概率性的生存分析显示了模型对不同输入参数的稳健性。

 

 净货币收益(NMB)与肿瘤可切除概率之间的敏感性分析。CE-MR/CT在假设的可切除率高于0.98的情况下有较高的NMB。

本研究表明,CE-MR/CT联合治疗是一种十分具有经济效益的胰腺癌分期策略,与使用CE-CT的SCI相比具有较高的成本效益。

 

原文出处

Felix G Gassert,Sebastian Ziegelmayer,Johanna Luitjens,et al.Additional MRI for initial M-staging in pancreatic cancer: a cost-effectiveness analysis.DOI:10.1007/s00330-021-08356-0

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    2022-09-22 feather89
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    2022-02-27 ms7000001680568286

    学习

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    2022-02-26 查查佳佳

    风是造成严重而复杂的长期残疾的主

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    学习了

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