Fig. 6From: Dual-energy computed tomography in a multiparametric regression model for diagnosing lymph node metastases in pancreatic ductal adenocarcinomaPairwise comparison of receiver operating characteristic curves using the DeLong test. Result showed the difference between areas of ROC curves 0.0414 (95% confidence interval, 0.0177–0.0651) and a Z statistic of 3.424 with p= 0.0006, which is statistically significantBack to article page