For the model with hepatic metastasis of pancreatic cancer, the sensitivity, specificity, positive prediction or negative prediction value of surveying K-ras mutation in bile was 84.2%, 85.7%, 84.2% or 85.7% respectively.

• 胰腺癌肝转移胆汁K-ras基因突变检测的敏感性为84.；20%25；特异性为85