The traditional histochemical staining of autopsy tissue samples usually suffers from staining artifacts due to autolysis caused by delayed fixation of cadaver tissues. Here, we introduce an autopsy virtual staining technique to digitally convert autofluorescence images of unlabeled autopsy tissue sections into their hematoxylin and eosin (H&E) stained counterparts through a trained neural network. This technique was demonstrated to effectively mitigate autolysis-induced artifacts inherent in histochemical staining, such as weak nuclear contrast and color fading in the cytoplasmic-extracellular matrix. As a rapid, reagent-efficient, and high-quality histological staining approach, the presented technique holds great potential for widespread application in the future.
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