MRI 2 (IMAGE) Rice University Caption An illustration based on simulations by Rice University engineers shows a gadolinium ion (dark blue) surrounded by a chelate known as DOTA in water. The chelate is required to minimize gadolinium retention in the body after a magnetic resonance imaging scan. The green atoms are carbon and light blue are nitrogen. Credit Illustration by Arjun Valiya Parambathu Usage Restrictions None License Original 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.