Google AI System Outperforms General Pathologists in Grading Prostate Cancers, Study Finds

Google AI System Outperforms General Pathologists in Grading Prostate Cancers, Study Finds
A novel artificial intelligence (AI) technology developed by Google is better at grading prostate cancer biopsies than general pathologists and is as good at identifying cancerous samples, a new study reports. The study, "Development and Validation of a Deep Learning Algorithm for Gleason Grading of Prostate Cancer From Biopsy Specimens," was published in JAMA Oncology. The study was funded by Google. Prostate biopsies involve removing cells from the prostate for evaluation under a microscope; this procedure is crucial for making accurate diagnoses and prognoses of prostate cancer. Traditionally, biopsies have been evaluated by specialist pathologists. However, there are drawbacks to having human beings do this evaluation, including cost, time, person-to-person variation, and human error. Using computer programs to assess prostate biopsies may help mitigate or overcome some of these drawbacks. In the new study, investigators at Google Health, working together with colleagues at institutions in the U.S. and Canada, developed a deep learning system (DLS), a form of artificial intelligence algorithm with the ability to learn from new data, to evaluate prostate cancer biopsies. Basically, the tool was created by giving a collection of previously-scored biopsies to a computer, th
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