Dr. Diana Paez Gutierrez serves as the Head of the Nuclear Medicine and Diagnostic Imaging Section within the Division of Human Health at the International Atomic Energy Agency (IAEA) since 2013. Originally from Bogota, Colombia, Dr. Paez obtained her degree in Medicine and Surgery from El Bosque University's Faculty of Medicine. She also holds a degree in Nuclear Medicine from Javeriana University's National Cancer Institute, earned in 1994. In 1997, she pursued further training in nuclear cardiology at St. Luke's-Roosevelt Hospital and in nuclear oncology (PET) at the Memorial Sloan Kettering Cancer Center in New York, USA. Additionally, she possesses a master's degree in communication and education from Autonoma University in Barcelona, Spain. She has co-authored more than 140 articles in peer-reviewed scientific journals and book chapters, with 45 of them centered around nuclear cardiology.