Hope for universal cancer test, says prenatal test inventor

The Australian-trained doctor who invented the revolutionary non-invasive prenatal test has turned her sights to cancer screening.

Professor Rossa Chiu (pictured), who now works at the Chinese University of Hong Kong, says her lab has developed a blood test that identifies not only if a patient has cancer, but also where it is located — “like a CT scan of the blood”.  

The test works by analysing DNA that is released into the plasma by dying tumour cells.