Figure 2

The computed tomographic (CT) slice image (a) and the heat map (b) for a healthy participant. The CT slice image (c) and the heat map (d) for a patient with Graves’ ophthalmopathy. Blue coloration indicates the strength of deep neural network attention. The color intensity is high at the area of the rectus muscles on the orbital coronal CT image. The deep neural network classifies the extraocular muscles as enlarged in the patient with Graves’ ophthalmopathy and as normal in the controls, focusing on the rectus muscles.