Woodruff School of Mechanical Engineering

NRE 8011/8012 and MP 6011/6012 Seminar

Nuclear & Radiological Engineering and Medical Physics Programs


Computational approaches to dose reconstruction for epidemiological studies of medical radiation exposure


Dr. Choonsik Lee


National Cancer Institute


Thursday, September 29, 2016 at 11:00:00 AM


Boggs Building, Room 3-47


Dr. Nolan Hertel


Epidemiological studies are essential to address the questions about long term adverse effects in patients exposed to radiation in diagnostic and therapeutic procedures. In order to understand the relationship between radiation dose and late effects in patient cohorts, it is crucial to estimate radiation dose to organs of interest, which must be individualized as much as possible using patient characteristics and technical data. The physicists at the Radiation Epidemiology Branch in the National Cancer Institute have developed computational methods to estimate individualized organ doses to large-scale patient cohorts in medical radiation procedures including computed tomography, nuclear medicine, and radiation treatments, and have applied the methods to several epidemiological investigations. Basic principles of medical dosimetry, recent developments of computational tools, and example applications to epidemiological studies will be presented at this seminar.


Dr. Lee received his master's in health physics in 1997 and doctorate in health physics in 2002 from Hanyang University in South Korea, where he was trained in computational human phantom development as well as in advanced dosimetry applications. He subsequently joined the Innovative Technology Center for Radiation Safety in South Korea as a Postdoctoral Fellow. While in the post-doctoral period, he was actively involved in national research projects investigating computational dosimetry of the Korean population. After the 2 years of postdoctoral study, he went to the University of Florida as postdoctoral researcher where he received extensive training in computational medical physics. Throughout both his doctoral studies and postdoctoral training, Dr. Lee has made considerable contributions to the development of anthropomorphic phantoms and to the improvement of the dosimetry calculations for a variety of radiation applications ranging from radiation protection to medical exposures. Dr. Lee was appointed as a tenure-track investigator in REB in May, 2009. Dr. Lee is a Corresponding Member of the DOCAL Task Group of the International Commission on Radiological Protection. He regularly reviews manuscripts for numerous journals including Radiology, Medical Physics, Health Physics, Radiation Protection Dosimetry, Physics in Medicine and Biology, etc. Dr. Lee is also actively involved in the American Association for Physicists in Medicine and Health Physics Society, participating in their annual meetings.