AI-assisted test diagnoses prostate cancer from urine with almost 100% accuracy The test only takes 20 minutes. Credit: Korea Institute of Science and Technology(KIST). Scientists in South Korea have developed a non-invasive, lightning-fast test that diagnoses prostate cancer with a stunning accuracy of up to 100%. Unlike traditional methods that require a biopsy, this test, which employs a smart AI analysis method, only needs a urine sample. Prostate cancer is one of the most dangerous types of cancers out there, especially for older men, with about 99% of cases occur in those over the age of 50. It is the second-leading cause of cancer death for men in the United States. About 1 in 35 men will die from it.