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Table 4 Results in group of difficult diagnosis sites arterial system (8 sites) and portal vein (21 sites)

From: Diagnosis of vascular invasion in pancreatic ductal adenocarcinoma using endoscopic ultrasound elastography

  Dynamic CTEUS B-modeEUS-EG
SensitivityArtery1.000 (0.418–1.000)1.000 (0.413–1.000)1.000 (0.413–1.000)
Portal vein0.429 (0.185–0.619)0.571 (0.290–0.806)0.857 (0.567–0.971)
SpecificityArtery0.500 (0.306–0.500)0.833 (0.638–0.833)0.833 (0.638–0.833)
Portal vein0.857 (0.735–0.952)0.714 (0.573–0.832)0.857 (0.712–0.914)
PPVArtery0.400 (0.167–0.400)0.667 (0.275–0.667)0.667 (0.275–0.667)
portal vein0.600 (0.258–0.866)0.500 (0.253–0.705)0.750 (0.496–0.850)
NPVartery1.000 (0.612–1.000)1.000 (0.765–1.000)1.000 (0.765–1.000)
portal vein0.750 (0.643–0.833)0.769 (0.617–0.896)0.923 (0.767–0.985)
accuracyartery0.625 (0.334–0.625)0.875 (0.581–0.875)0.875 (0.581–0.875)
portal vein0.714 (0.552–0.841)0.667 (0.479–0.823)0.857 (0.664–0.933)
  1. CT computed tomography, EUS endoscopic ultrasonography, EUS-EG endoscopic ultrasonography elastography, PPV positive predictive value, NPV negative predictive value