In this issue of Cardiology Clinics, guest editors Drs. Sharmila Dorbala and Piotr Slomka bring their considerable expertise to the topic of Nuclear Cardiology. Top experts in the field cover key topics such as advances in single-photon emission computed tomography hardware and software; technical aspects of cardiac PET; novel PET applications and radiotracers of imaging cardiovascular pathophysiology; radionuclide tracers for myocardial perfusion imaging and blood flow quantification; and more.