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Table 2 The efficacy of the cut-off value in differential diagnosis

From: F-18 fluorodeoxyglucose positron emission tomography for differential diagnosis of pancreatic tumors

  Cut-off (SUV max ) Az value SEN (%) SPE (%) PPV (%) NPV (%) ACC (%)
Pancreatic ductal cancer vs. Mass-forming chronic pancreatitis 2.5 0.982 95.0 90.0 98.7 69.2 94.4
Malignant IPMN vs. Benign IPMN 2.5 0.933 77.8 100 100 75.0 86.7
All malignant tumors vs. All benign tumors 2.5 0.957 92.2 97.1 98.9 80.1 93.4
  1. SUVmax: maximum standardized uptake value, Az: ROC-area index, SEN: sensitivity, SPE: specificity, PPV: positive predictive value, NPV: negative predictive value, ACC: accuracy, IPMN: intraductal papillary mucinous neoplasm.