For ET tube position (satisfactory vs. low), the AUCs are Alexnet_U (0.741), GoogLeNet_U (0.748), Alexnet_T (0.791), and GoogLeNet_T (0.809) (Table 1). No statistically significant differences were present between these models. The best-performing GoogLeNet_T model for presence/ absence of ET tube (AUC 0.989) was significantly more accurate than the best-performing GoogLeNet_T model for low/ normal ET tube position (AUC 0.809), P = 0.002.