Ehsan Samei

Ehsan Samei

Professor of Radiology

Professor in the Department of Physics (Secondary)

Member of the Duke Cancer Institute

Professor in the Department of Electrical and Computer Engineering (Secondary)

Office Location: 
2424 Erwin Road, Suite 302, Ravin Advanced Imaging Labs, Durham, NC 27705
Front Office Address: 
DUMC Box 2731, Durham, NC 27710
(919) 684-7852


Dr. Ehsan Samei, PhD, DABR, FAAPM, FSPIE, FAIMBE is a Persian-American medical physicist. He is a tenured Professor of Radiology, Medical Physics, Biomedical Engineering, Physics, and Electrical and Computer Engineering at Duke University. He serves as the Director of the Duke Medical Physics Graduate Program and the Director of the Clinical Imaging Physics Group. He is certified by the American Board of Radiology, and is a Fellow of the American Association of Physicists in Medicine (AAPM), the International Society of Optics and Phtonics (SPIE), and the American Institute of Biomedical Engineering. He is a Councilor of the National Council of Radiation Protection and Measurements (NCRP), and a Distinguished Investigator of the Academy of Radiology Research. He was the founder or co-founder of the Duke Medical Physics Program, the Duke Imaging Physics Residency Program, the Duke Clinical Imaging Physics Group, and the Society of Directors of Academic Medical Physics Programs (SDAMPP). He has held senior leadership positions in the AAPM, SPIE, SDAMPP, and RSNA. 

Dr. Samei’s interests and expertise include x-ray imaging, theoretical imaging models, simulation methods, and experimental techniques in medical image formation, analysis, assessment, and perception.  His current research includes methods to develop image quality and dose metrics that are clinically relevant and that can be used to design and utilize advanced imaging techniques towards optimum interpretive and quantitative performance. He further has an active interest in bridging the gap between scientific scholarship and clinical practice, in the meaningful realization of translational research, and in clinical processes that are informed by scientific evidence. Those include advanced imaging performance characterization, procedural optimization, and radiomics in retrospective clinical dose and quality analytics. He has mentored over 100 trainees (graduate and postgraduate). He has over 900 scientific publications including over 240 referred journal articles. He has been the recipient of 34 grants as Principle Investigator reflecting $13M of extramural funding.

Education & Training

  • Ph.D., University of Michigan, Ann Arbor 1997

  • M.E., University of Michigan, Ann Arbor 1995

Chen, Baiyu, et al. “Volumetric quantification of lung nodules in CT with iterative reconstruction (ASiR and MBIR).Med Phys, vol. 40, no. 11, Nov. 2013, p. 111902. Pubmed, doi:10.1118/1.4823463. Full Text

Hoang, Jenny K., et al. “Estimation of radiation exposure for brain perfusion CT: standard protocol compared with deviations in protocol.Ajr Am J Roentgenol, vol. 201, no. 5, Nov. 2013, pp. W730–34. Pubmed, doi:10.2214/AJR.12.10031. Full Text

Kiarashi, N., and E. Samei. “Digital breast tomosynthesis: A concise overview.” Imaging in Medicine, vol. 5, no. 5, Oct. 2013, pp. 467–76. Scopus, doi:10.2217/iim.13.52. Full Text

Boyce, Sarah J., et al. “Effective DQE (eDQE) for monoscopic and stereoscopic chest radiography imaging systems with the incorporation of anatomical noise.Med Phys, vol. 40, no. 9, Sept. 2013, p. 091916. Pubmed, doi:10.1118/1.4818060. Full Text

Swanick, Cameron W., et al. “Comparison of conventional and simulated reduced-tube current MDCT for evaluation of suspected appendicitis in the pediatric population.Ajr Am J Roentgenol, vol. 201, no. 3, Sept. 2013, pp. 651–58. Pubmed, doi:10.2214/AJR.12.9667. Full Text

Samei, Ehsan, et al. “DQE of wireless digital detectors: comparative performance with differing filtration schemes.Med Phys, vol. 40, no. 8, Aug. 2013, p. 081910. Pubmed, doi:10.1118/1.4813298. Full Text

Kapadia, A. J., et al. “Monte-Carlo simulations of a coded-aperture X-ray scatter imaging system for molecular imaging.” Progress in Biomedical Optics and Imaging  Proceedings of Spie, vol. 8668, June 2013. Scopus, doi:10.1117/12.2008484. Full Text

Chung, H., et al. “Estimating breast density with dual energy mammography: A simple model based on calibration phantoms.” Progress in Biomedical Optics and Imaging  Proceedings of Spie, vol. 8668, June 2013. Scopus, doi:10.1117/12.2008398. Full Text

Li, X., et al. “Organ dose in chest CT: Effect of modulation scheme on estimation accuracy.” Progress in Biomedical Optics and Imaging  Proceedings of Spie, vol. 8668, June 2013. Scopus, doi:10.1117/12.2008505. Full Text


Samei, E. “MO‐E‐W‐608‐01: Display Evaluation Demonstration Workshop.” Medical Physics, vol. 32, no. 6, 2005, p. 2073. Scopus, doi:10.1118/1.1998315. Full Text

Samei, E. “MO‐D‐W‐608‐01: Display Evaluation Demonstration Workshop.” Medical Physics, vol. 32, no. 6, 2005, p. 2063. Scopus, doi:10.1118/1.1998280. Full Text

Spicer, K. M., and E. Samei. “The radiologist's workbench - Critical features for image review and reporting.” Practical Digital Imaging and Pacs, no. 25, 1999, pp. 433–44.