Fig. 1From: Chronic cholestasis detection by a novel tool: automated analysis of cytokeratin 7-stained liver specimensThe structure of the final AI model. The three independent and nested CNNs that were trained by semantic segmentation are 1) liver tissue, 2) parenchyma and portal areas and finally 3) the K7-positive hepatocytes. Ductular proliferation and original bile ducts are trained and included in the portal areas’ layerBack to article page