Fig. 2From: Prognostic clinical indexes for prediction of acute gangrenous cholecystitis and acute purulent cholecystitisROC curve of gallbladder wall thickness for acute exacerbation of chronic cholecystitis and acute purulent cholecystitis. The area under curve: 0.8435; 95% CI 0.7118–0.9753; P = 0.0001Back to article page