MRI in Microreactors (IMAGE) DOE/Lawrence Berkeley National Laboratory Caption The top image shows an MRI signal from thermally polarized propylene, and the bottom image shows the signal obtained with parahydrogen-polarized propylene. The signal-to-noise ratio of the bottom image is a factor of 300 larger than that of the thermally polarized propylene in the top image. Credit Louis Bouchard and Scot Burt Berkeley Lab/UC Berkeley Usage Restrictions None 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.