The ROC curve for the AI system compared with that of each human reader (a–d) and all four human readers (e). The AUCs of the human readers without the AI system were 0.872–0.904, and those of each human reader with the AI system were 0.893–0.915. The AUCs of the AI system, all four human readers without the AI system, and all four human readers with the AI system were 0.925, 0.884, and 0.899, respectively. The AI system showed better diagnostic performance compared with that of all four human readers without the AI system (p = 0.002), and the AUC of all four human readers using the AI system was significantly higher than that without the AI system (p = 0.039).