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New AI system may help detect prostate cancer
Researchers have developed a new artificial intelligence (AI) system to help radiologists improve their ability to diagnose prostate cancer. The system, called FocalNet, helps identify and predict the aggressiveness of the disease evaluating magnetic resonance imaging, or MRI, scans.
It does so with nearly the same level of accuracy as experienced radiologists, said researchers at the University of California, Los Angeles (UCLA) in the US.
In tests, FocalNet was 80.5 per cent accurate in reading MRIs, while radiologists with at least 10 years of experience were 83.9 percent accurate, according to the study published in the journal IEEE Transactions on Medical Imaging.
Radiologists use MRI to detect and assess the aggressiveness of malignant prostate tumours. However, it typically takes practicing on thousands of scans to learn how to accurately determine whether a tumour is cancerous or benign and to accurately estimate the grade of the cancer.
In addition, many hospitals do not have the resources to implement the highly specialised training required for detecting cancer from MRIs. FocalNet is an artificial neural network that uses an algorithm that comprises more than a million trainable variables.
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