Figure 2
From: Diagnosis of nasal bone fractures on plain radiographs via convolutional neural networks

Example images of bilateral nasal bone radiographs overlaid with Grad-CAM heatmaps. The DL model and radiologists all correctly identified the nasal bone fractures. The images (a) and (b) show typical nasal bone fractures with fracture lines; images (c) and (d) show comminuted fractures with skin folds (c) and a metallic nose wire from a facial mask (d). The predicted probabilities of fractures by the DL model are shown for each patient.