目的 探讨血清异常凝血酶原(protein induced by vitamin K absence or antagonist-Ⅱ,PIVKA-Ⅱ)和甲胎蛋白(AFP)对原发性肝癌(primary hepatocMG132ellular carcinoma, PHC)的临床诊断价值.方法 选取PHC患者98例，肝硬化患者50例，慢性肝炎患者50例，健康体检者50名；检测其血清PIVKA-Ⅱ、AFP水平，绘制受试者工作特征曲线(Receiver operating characteristic curve, ROC),并计算临界值BLZ945供应商、灵敏度、特异度及曲线下面积(Area under the curve, AUC);诊断PHC的临界值：血清PIVKA-Ⅱ为40 mAu/mL,AFP为20 ng/mL.结果 PHC组血清PIVKA-Ⅱ、AFP水平高于其他3组(P<0.05);血清PIVKA-Ⅱ、AFP及联合诊断PHC的AUC面积分别为0.931、0.887和0.934,灵敏度分别为89.80%、84.70%、91.80%,特异度分别为88.70%、87.30%、84.00%;将40 mAu/mL、20 ng/mL分别作为血清PIVKA-Ⅱ、AFP诊断PHC临界值时，联合诊断优于二者单独诊断；血清PIVKA-Ⅱ对血清AFP阴性、血清AFP阳性的PHC患者均有诊断价值(P>0.05).结论 Effective Dose to Immune Cells (EDIC)血清PIVKA-Ⅱ可用于PHC的诊断，尤其对于AFP阴性PHC的诊断；血清PIVKA-Ⅱ、AFP联合诊断PHC的价值优于二者的单独诊断.