Dr. Hector Lopez is a Program Director in the Division of Applied Science and Technology at the National Institute of Biomedical Imaging and Bioengineering (NIBIB), and directs the extramural ultrasound research portfolio, as well as the radiographic imaging research portfolio. He received the Doctor of Science degree in Biomedical Engineering from the George Washington University in 1990. Before joining NIBIB, he worked for the Food and Drug Administration (FDA), Center for Devices and Radiological Health (CDRH), where he conducted research in development of methods and tools for the objective measurement of imaging system performance. His research also included development of innovative ultrasound imaging techniques and measurement methods in the body. His current research interests include ultrasound imaging and ultrasound therapy applications, as well as radiological imaging, signal detection and processing, and diagnostic imaging system performance metrics. He has actively participated in professional societies, and in 1995 was elected Fellow of the American Institute of Ultrasound in Medicine (AIUM), and served as chairman of the AIUM Technical Standards Committee from 1999-2001, as well as chairman of Working Group 9 of the International Electrotechnical Commission (IEC) from 1999-2004. He is also a member of the American Association of Physicists in Medicine.