Figure 2From: Optimizing the diagnostic power with gastric emptying scintigraphy at multiple time points Receiver's Operating Characteristic (ROC) Curve for hourly percent retention at 2-h, 3-h, 4-h, and their best linear combination. Area Under the Curve (AUC) increased from 2-h to 4-h and maximized with the best linear combination of all three hourly measurements.Back to article page