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Multi-species AI: How Dogs, Cats, and Algorithms Are Revolutionizing Cancer Diagnosis

Andreas Maier
6 min readJan 16, 2025

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When AI and Animals unite to beat cancer. Image created by DALL-E.

What if Dr. Dolittle teamed up with artificial intelligence? In the MIDOG Challenge, it felt a little like that: an alliance of researchers, dogs, and cats (or at least their data) working together to train AI to detect cancer. While the sniffing noses of cancer-detecting dogs are legendary, this challenge aimed to teach machines how to recognize cancer with precision across humans and animals alike. The result? A scientific breakthrough that could transform medicine forever.

Why Mitotic Figures Matter: The Microscopic Battle Against Cancer

At the heart of cancer diagnosis lies the mitotic figure — cells caught in the act of division. These dividing cells are like the ticking clock of tumor aggression. The more mitotic figures found in a tumor, the more likely it is to grow quickly and spread. Counting these figures is critical for staging cancers, guiding treatment plans, and predicting patient outcomes. It’s one of the most pivotal tasks in histopathology.

Label-free live cell imaging of Mesenchymal Stem Cells undergoing mitosis. (Source: Wiki Commons, License: CC BY SA 4.0)

Yet, this vital process is fraught with challenges. Human pathologists, armed with…

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Andreas Maier
Andreas Maier

Written by Andreas Maier

I do research in Machine Learning and head a Research Lab at Erlangen University, Germany.

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