Sotirios Stathakis, Ph.D., DABR, FAAPM

Dr. Stathakis


Ph.D., Medical Physics, 2005
University of Patras, Laboratory of Medical Physics, Patras, Greece

M.S., Medical Physics, 1997
University of Aberdeen, Aberdeen, UK

B.S., Physics (minor in Mathematics and Computer Science), 1995
University of Waterloo, Waterloo, ON, Canada


Research Associate, 2006
Fox Chase Cancer Center, Philadelphia, PA


American Board of Radiology (ABR), 2010
Therapeutic Medical Physics


Chief of Physics, 2023 – Present
Mary Bird Perkins Cancer Center, Baton Rouge, LA

Associate Director of Medical Physics Division, 2017 – 2022
University of Texas Health Science Center San Antonio, San Antonio, TX

Chief of Medical Physics, 2012 – 2022
Department of Radiation Oncology, South Texas VHA, San Antonio, TX

Adjunct Faculty, 2023 – Present
Department of Physics and Astronomy, Louisiana State University

Research Interests

  • Patient specific quality assurance
  • Daily dose verification
  • Treatment planning techniques
  • Adaptive radiation therapy
  • Stereotactic body radiation therapy
  • Automation, standardization and workflow efficiency


(recent selected)

  1. Paschal HMP, Kabat CN, Papaconstadopoulos P, Kirby NA, Myers PA, Wagner TD, Stathakis S. Monte Carlo modeling of the Elekta Versa HD and patient dose calculation with EGSnrc/BEAMnrc. J Appl Clin Med Phys. 2022
  2. Parencia, H,  Kabat,  C,  Papaconstadopoulos,  P,  Kirby  NA,  Myers  PA,  Wagner  TD,  Papanikolaou  N, Stathakis  Monte Carlo Dose Calculations for Patient-Specific QA Based on Machine Log Files 2021 Jul. (Medical Physics).
  3. Komisopoulos, G, Tolia, M, Siountas, A, Stathakis S, Papanikolaou N, Mavroidis, P. Conformal Radiotherapy with Sequential Boost Versus Intensity-Modulated Radiation Therapy with a Simultaneously Integrated Boost  2021 Jul. (Medical Physics).
  4. Mavroidis, P,  McGurk,  R,  Schreiber,  E,  Dance,  M,  Zourari,  K,  Kalaitzakis,  G,  Zoros,  E,  Boursianis,  T,  Pappas,  E, Read, B, Barry, P, Papanikolaou N, Das, S, Stathakis S. Feasibility Study of Precision-CyberKnife, IPlan-Novalis, Raystation-VersaHD  and  Monaco-VersaHD  to  Satisfy  the  UNC  Treatment  Planning  Protocol  of  Stereotactic Radiosurgery for Multiple Brain Lesions 2021 Jul. (Medical Physics).
  5. Baley, C,  Kirby  NA, Stathakis  S,  Papanikolaou  N,  Myers  PA,  Rasmussen  KH,  Saenz    Optimizing  Isocenter Placement Based On Rotational Uncertainty in Single-Isocenter SRS 2021 Jul. (Medical Physics).
  6. Kabat, C, Parenicia, H, Papanikolaou N, Stathakis S. Variance in DVHs Based On Machine Repeatability 2021 Jul. (Medical Physics).

Pubmed link to Dr. Stathakis publications