Andrew Karellas, PhD, DABR, FAAPM, FACR

Professor, Medical Imaging
Director of Biomedical Imaging Innovation / Clinical Translation in Next-Gen CT
Vice-Chair of Faculty Development - DMI

Dr. Karellas brings a wealth of research experience. Dr. Karellas received his PhD from UCLA in Medical Physics. He has been Professor of Hematology and Oncology at the Winship Cancer Institute of Emory University, Professor of Biomedical Engineering at the Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Acting Vice-Chair for Research, Department of Radiology, Emory University School of Medicine.

Dr. Karellas has also received numerous honors and awards. He is a Fellow of the American College of Radiology (2012), a Fellow of the American Association of Physicists in Medicine (2001) and a member of Sigma Xi (1984. He has been a Reviewer “with Distinction” for Radiology Journal for 2009, he’s received a Dedicated Service Recognition Award as a Deputy Editor for Medical Physics, a Lifetime Achievement Award from Update New York Association of Physicists in Medicine and a Lifetime Service Award from the American Board of Radiology and he was elected as a “SPIE Senior Member” who has become distinguished through significant contributions in …, active involvement in…, service to the general optics and photonics community and contributions in relevant technologies.

Dr. Karellas has patents for Quantitative Radiographic Imaging Systems and Digital and Tomosynthesis Imaging and several current research support grants from NIH.

  • PhD: UCLA, Medical Physics
Honors and Awards
  • Fellow, American College of Radiology - 2012
  • Fellow, American Association of Physicists in Medicine - 2001
  • Dedicated Service Recognition Award as Deputy Editor for Medical Physics
  • Lifetime Achievement Award, Update New York Associate of Physicists in Medicine
  • Lifetime Achievement Award, American Board of Radiology
  • SPIE Senior Member
  • Member of Xigma Xi - 1984

Select Publications


Shrestha, S., S. Vedantham, and A. Karellas, "Towards standardization of x-ray beam filters in digital mammography and digital breast tomosynthesis: Monte Carlo simulations and analytical modelling.", Phys Med Biol, vol. 62, issue 5, pp. 1969-1993, 2017 Mar 07. PMCID: PMC5384796  PMID: 28075335
Type of Publication: Journal Article
Shi, L., S. Vedantham, A. Karellas, and L. Zhu, "X-ray scatter correction for dedicated cone beam breast CT using a forward-projection model.", Med Phys, vol. 44, issue 6, pp. 2312-2320, 2017 Jun.
Type of Publication: Journal Article