Radiology PowerPoint Tip • Xray of the Week • Week #49 Have you ever wondered how to get a scrollable image stack of CT or MR images on a single PowerPoint slide. There is a way to do it! Australian Emergency Medicine Specialist Dr. Andy Buck shares how to get a scrollable image stack on a single PowerPoint slide on a Mac. The basic steps on Mac: 1. Export the image stack from PACS as JPEG images. If your PACS can not export as JPEG, use Osirix to convert from DICOM to JPEG.