Figure 1

Receiver operating characteristic (ROC) curve analysis for all protocols and readers 1 (a) and 2 (b). The area under the curves (AUCs) for the unenhanced (UE), abbreviated protocol (AP), and full diagnostic protocol (FDP) for reader 1/reader 2 were 0.87/0.83, 0.88/0.86, and 0.93/0.94, respectively.