The company claims to have developed an Artificial Intelligence (AI) model that is ‘capable of surpassing human experts’ in predicting breast cancer.
“In an independent study of six radiologists, the AI system outperformed all of the human readers: the area under the receiver operating characteristic curve (AUC-ROC) for the AI system was greater than the AUC-ROC for the average radiologist by an absolute margin of 11.5 per cent,” the company said. This research has been working for two years with clinical partners in the United Kingdom (UK) and the United States (US). The company claimed to have provided evidence of the ability of the system to generalise from the UK to the US. The AI model was trained and tuned on an anonymised data set of mammograms (X-Ray images of the breast used to detect cancer) from over 76000 women in the UK and over 15000 women in the US. The company then evaluated the accuracy of the AI model on a separate data set of 25000 women in the UK and 3000 women in the US.
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According to Google, it was ultimately able to reduce false negatives by 9.4 per cent in the US and false positives by 5.7 per cent.