DELFI (IMAGE) Johns Hopkins Medicine Caption New liquid biopsy test called DELFI uses artificial intelligence to detect patients with cancer by identifying altered DNA fragmentation in the blood. Credit Carolyn Hruban Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.