We are pleased to report that a new article led by Caitlin Smith is now live and open access in Photoacoustics.  Caitlin rigorously developed and validated a technique for photoacoustic vector-flow to measure the pixel-wise magnitude and direction of flowing optical absorbers. This work focused on ex vivo whole blood and a comparison to pulse-echo ultrasound.  Caitlin’s work not only provides new capabilities for our lab, but for photoacoustic imaging as a whole.  We look forward to the new directions and applications this work opens up!  Well done, Caitlin!