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AI based on human wisdom to speed up cancer diagnosis

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A new system combining artificial intelligence (AI) with human knowledge promises faster and more accurate cancer diagnosis.

The powerful developed by a team of engineering researchers at the University of Waterloo uses digital images of tissue samples to match new cases of suspected cancer with previously diagnosed cases in a database.

In tests using the largest publicly available archive in the world -- comprised about 30,000 digitised slides from almost 11,000 patients --the achieved up to 100 per cent accuracy for 32 forms of cancer in 25 organs and body parts.

"AI can help us tap into our medical wisdom, which at the moment is just sitting in archives," said Hamid Tizhoosh, director of the Laboratory for Knowledge Inference in Medical Image Analysis (KIMIA Lab) at Waterloo. "When you use AI like this, its performance is astounding."

The system utilises AI to search digital images of biopsies from confirmed cancer cases for those most similar to a new digital image in an undiagnosed case.

Based on the known, verified findings of the majority of similar images, the system recommends a diagnosis for the new case.

Conducted over a four-month period using high-performance computers and data storage, the tests achieved accurate diagnoses for everything from melanoma to prostate cancer.

"We showed it is possible using this approach to get incredibly encouraging results if you have access to a large archive," said Tizhoosh.

"It is like putting many, many pathologists in a virtual room together and having them reach consensus."

More work is needed to analyse the findings and refine the system but Tizhoosh said the results so far demonstrate it has potential as a screening tool to speed up and improve the accuracy of cancer diagnoses by pathologists.

(This story has not been edited by Business Standard staff and is auto-generated from a syndicated feed.)

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First Published: Wed, March 11 2020. 19:49 IST
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