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Table 4 Predictive performance for identifying tumor response to TACE

From: Prediction of hepatocellular carcinoma response to transarterial chemoembolization with intravoxel incoherent motion diffusion-weighted imaging

Variable AUC p value Youden’s index (%) Optimum cutoff value Sensitivity (%) Specificity (%) PPV NPV Accuracy
D(× 10 − 3 mm2/s) 0.716 [0.504–0.928] 0.061 0.538 − 4.5253 76.92% 76.92% 76.92% 76.92% 76.92%
D*(× 10 − 3 mm2/s) 0.716 [0.503–0.929] 0.61 0.538 − 4.6004 76.92% 76.92% 76.92% 76.92% 76.92%
f (%) 0.775[0.584–0.966] 0.017* 0.615 2.5752 76.92% 76.92% 76.92% 76.92% 76.92%
  1. AUC: areas under the receiver operating characteristic curve, PPV: positive predictive value, NPV: negative predictive value
  2. *Statistically significant (p value < 0.05)