Dr. Eric Hostetler obtained his PhD from the University of Illinois, Urbana-Champaign, where he developed novel chemistry methods for incorporation of positron-emitting radioisotopes into small molecules. Dr. Hostetler continued in the field of molecular imaging with a postdoctoral appointment at the Washington University St. Louis School of Medicine in the Mallinckrodt Institute of Radiology. Sincing joining Merck’s Imaging Department in 2000, he has held various roles in imaging at Merck, including director of the PET tracer group, where he led or contributed to the discovery of novel PET tracers for 12 different targets, primarily for the purpose of guiding neuroscience drug development. Currently, Dr. Hostetler is the head of Translational Imaging Biomarkers at Merck, with a mission to discover, develop and implement novel imaging biomarkers for drug discovery and development.