Figure 2.

Sensitivity, specificity, PPV, and NPV of US, CEUS, CT, MRI, and PET-CT for differentiating XGC. (A) The sensitivity of each imaging modality; (B) the specificity of each imaging modality; (C) PPV of each imaging modality; (D) NPV of each imaging modality. PPV, positive predictive value; NPV, negative predictive value; US, ultrasound; CEUS, contrast-enhanced ultrasound; CT, computed tomography; MRI, magnetic resonance imaging; PET, positron emission tomography; XGC, xanthogranulomatous cholecystitis.