Additional file 4: Figure S3 2-class confusion matrices of models on test set. (A) 2-class confusionmatrices of 2D model on internal test set. (B) 2-class confusion matrices of 3D model on internaltest set. (C) 2-class confusion matrices of 2D model on surgery test set. (D) 2-class confusionmatrices of 3D model on surgery test set. CNN, convolutional neural network; ROC, receiveroperating characteristic