Dr. Umar Mahmood is Chief of Nuclear Medicine and Molecular Imaging, Director of the Center for Nuclear Medicine and Theranostic Sciences, and Associate Chair for Imaging Sciences in the Department of Radiology at Massachusetts General Hospital, and Professor of Radiology at Harvard Medical School. Dr. Mahmood’s research has focused on translational applications of molecular imaging and radioligand therapy to guide precision medicine, with an emphasis on the tumor microenvironment, cancer signaling pathways, changes in cancer metabolism, and the interaction of the immune system with tumors. He is interested in applying image information for disease characterization and optimization of individual treatment response.