Figure 2.

Performance of CNN models and radiologists in external validation set. (A–C) Receiver operating characteristic (ROC) curves in the validation set (n = 201 patients). (A) Model A: seven-way classifier with six sequences. (B) Model B: seven-way classifier with three unenhanced sequences. (C) Model C,D: binary classifier for benign and malignancy with six sequences and three unenhanced sequences. (D–F) ROC curves in the new validation set of malignant tumors (n = 99 patients). (D–F), (D) Model E: three-way classifier with six sequences. (E) Model F: three-way classifier with six sequences and clinical data. (F) Model G: three-way classifier with three sequences and clinical data. The crosses indicate the performance of average radiologists for each category, the length of the cross represents the confidence Interval (CI).