Single Biggest Cancer Dictionary in the World

What is 18F-EF5?

Pronunciation: /ˈeɪˈtin ɛf ef* faɪv/

18F-EF5

Definition

A radioactive substance being studied in positron emission tomography (PET) imaging to find cancer cells that have a low level of oxygen. This may help predict how well the cancer will respond to treatment. Also called fluorine F 18-EF5.