MRI 1 (IMAGE) Rice University Caption An illustration based on simulations by Rice University engineers shows a gadolinium ion (blue) in water (red and white), with inner-sphere water -- the water most affected by the gadolinium -- highlighted. The researchers’ models of gadolinium in water show there’s room for improvement in compounds used as contrast agents in clinical magnetic resonance imaging. 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.