Scientific Advisory Board

Henry N. Wagner Jr., M.D. | David J. Yang, PhD. | Saad Zakko, M.D.

 Henry  N. Wagner Jr., M.D.
Johns Hopkins School of Medicine

A pioneer in nuclear medicine and past president of the Society of Nuclear Medicine, Henry N. Wagner Jr., MD, has spent nearly five decades helping to define and promote the specialty. His groundbreaking work in the applications of nuclear medicine to pulmonary and coronary artery disease and his studies of brain chemistry with radio-labeled tracers have led to significant advances in these fields.

Dr. Wagner is the director of the Division of Radiation Health Sciences at Johns Hopkins University in Baltimore, where he has worked since 1958. He is a professor emeritus of radiology and radiological sciences at the Johns Hopkins School of Medicine and a professor of environmental health sciences at the School of Hygiene and Public Health.

While attending Johns Hopkins University, Dr. Wagner completed his bachelor's degree, medical degree, internship and residency. In 1955, he accepted a clinical associate position with the National Institutes of Health (NIH). After participating in a special fellowship in London, he returned to Johns Hopkins as an instructor and chief medical resident of the Osler Medical Service.

Dr. Wagner's contributions to nuclear medicine have brought him numerous honors and awards, and he has three honorary degrees. In 1972, Dr. Wagner was the recipient of the First Vikram Surhabel Gold Medal from the Society of Nuclear Medicine of India, and in 1993 he received the First Annual Society of Nuclear Medicine President's Award for outstanding contributions to nuclear medicine.

An internationally renowned expert in nuclear medicine, Dr. Wagner serves as a consultant and advisor to a number of scientific, policy and legislative bodies. He is an advisory expert for the Network of World Health Organization Collaborating Centers and a member of the NIH Ad Hoc Advisory Board on PET. He is also a member of the U.S. Food and Drug Administration's Panel for Radiology Devices and the Institute of Medicine. Dr. Wagner is a consultant in nuclear medicine to Walter Reed Army Medical Center in Washington, DC, and a national consultant in nuclear medicine to the Surgeon General of the United States.

A prolific researcher and writer, Dr. Wagner is author or co-author of more than 800 publications, including peer-reviewed journal articles, books and chapters. He is a member of several editorial boards and many medical and radiological societies, and an honorary member of the British Institute of Radiology (2000).

Saad Zakko, M.D.
Department of Nuclear Medicine, Dubai Hospital

Dr. Saad Zakko has been the Director of Nuclear Medicine at Dubai Hospital since 1986. Present positions for Dr. Zakko include IAEA expert (International Atomic Energy Agency), Vienna, Senior Lecturer, Dubai Medical College, Member of the Editorial Board, World Journal of Nuclear Medicine, Member of the International Counsil, American Society of Nuclear Cardiology and Adjunct Faculty Member, College of Health Sciences, Sharjah University. Dr. Zakko received his M.B.ChB from Baghdad Medical College and MSc. Nuclear Medicine from St. Thomas Hospital London, U.K. In February 2005, Dr. Zakko was the receipient of the Specialist Achievement Award for Imaging presented by Arab Health Awards 2005.