Figure 5
From: Automatic MRI segmentation of pectoralis major muscle using deep learning

Prediction error on test images. Segmentation error at the lateral contour of the PM muscle (white arrow), due to focal fatty atrophy at the center of the muscle belly. (a) Grayscale Axial T1 FSE image, (b) manual tracing, and (c) CNN model prediction with underestimation of the PM muscle segmentation (arrowhead).