RT Journal Article SR Electronic T1 Real-Time Multi-Angle Projection Imaging of Biological Dynamics JF bioRxiv FD Cold Spring Harbor Laboratory SP 2020.10.29.355917 DO 10.1101/2020.10.29.355917 A1 Bo-Jui Chang A1 Etai Sapoznik A1 Theresa Pohlkamp A1 Tamara S. Terrones A1 Erik S. Welf A1 James D. Manton A1 Philippe Roudot A1 Kayley Hake A1 Lachlan Whitehead A1 Andrew G. York A1 Kevin M. Dean A1 Reto Fiolka YR 2020 UL http://biorxiv.org/content/early/2020/10/29/2020.10.29.355917.abstract AB We introduce a cost-effective and easily implemented scan unit which enables any camera-based microscope to perform projection imaging from diverse viewing angles. We demonstrate this capability on Lattice Light-Sheet and Oblique Plane Microscopy by rapidly delivering projection images with an uncompromised lateral resolution and high optical contrast. By imaging the sample from one or multiple perspectives, our method enables visualization of rapid biological processes, real time stereoscopic imaging as well as three-dimensional particle localization throughout a cellular volume from just two images. Furthermore, because our projection imaging technique provides intuitive three-dimensional renderings in real-time, it improves microscope usability, allows users to more-readily optimize instrument performance and identify biological phenomena of interest on-the-fly, while also reducing data overhead by a factor of >100. We leverage our rapid projection method to image cancer cell morpho-dynamics and calcium signaling in cultured neurons, to perform three-dimensional localization of genetically encoded nanoparticles, as well as to image orthogonal views of an embryonic Zebrafish heart simultaneously.Competing Interest StatementR.F. filed a patent for the scan unit and its applications to microscopy. K.M.D. and R.F. have an investment interest in Discovery Imaging Systems, LLC.