In August 1976, he became the first to perform human PET studies of the brain and whole body using the radiotracer [18F]Fluorodeoxyglucose (FDG). Alavi holds the position of Professor of Radiology and Neurology, as well as Director of Research Education in the Department of Radiology at the University of Pennsylvania. Over the course of his career, he has amassed over 1,000 publications and 40,000 citations, earning an h-index of 101.[1]