High-resolution Photoacoustic Imaging (IMAGE) Optica Caption These images compare the imaging of blood flowing through five channels with various approaches. At top are single photoacoustic images from the image stack the researchers analyzed. At bottom left is the result of conventional analysis. The middle and right bottom images show the researchers' fluctuation analysis, with five channels clearly resolved in the final fluctuation analysis. Credit Bastien Arnal (Grenoble University, Grenoble, France) 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.