Imaging Atherosclerotic Calcification (IMAGE) University of Cambridge Caption This image of atherosclerotic calcification or 'hardening of the arteries' used 18F-NaF positron emission tomography. Credit University of Cambridge Usage Restrictions In relation to this research story only and with credit 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.