Ahmet Sedat Ayan, PhD
Academic Title: Professor in the College of Medicine
Research Program: Translational Therapeutics
About Me
More info forI am a radiation physicist in the Department of Radiation Oncology and a member of the Translational Therapeutics Program at the OSUCCC – James, where my research interests include medical image analysis, data analytics, normal tissue toxicity modeling and radiation dosimetry methods.
In addition to holding two patents — one for a quality assurance phantom for radiation therapy linear accelerators and the other for a device that synchronizes the motions of two robots that have independent control systems — I am studying the automatic intraoperative co-registration of patients and radiotherapy devices. I also evaluate real-time planning for intraoperative electron beam radiotherapy.
I have co-authored several articles in peer-reviewed publications such as Journal of Applied Clinical Medical Physics, International Journal of Radiation Oncology and PLOS ONE. Additionally, I am a member of the American Association of Physicists in Medicine and the American Society of Therapeutic Radiology and Oncology.
Research Interests
More info for- Leg Ulcer
- Carcinoid Tumor
- Iron
Academic Office & Contact Information
More info forAcademic Office:
James Cancer Hospital
460 W 10th Ave
Columbus, Ohio 43210-1240Phone:
614-366-1773Email:
ayan.1@osu.eduPublications
More info forDecember 16, 2023Multi-institutional consensus on machine QA for isochronous cyclotron-based systems delivering ultra-high dose rate (FLASH) pencil beam scanning proton therapy in transmission mode.
Spruijt K, Mossahebi S, Lin H, Lee E, Kraus J, Dhabaan A, Poulsen P, Lowe M, Ayan A, Spiessens S, Godart J, Hoogeman M
Med Phys
October 30, 2023Vertebral Compression Fracture After Spine Stereotactic Body Radiotherapy: The Role of Vertebral Endplate Disruption.
Dibs K, Facer B, Mageswaran P, Raval R, Thomas E, Gogineni E, Beyer S, Pan J, Klamer B, Ayan A, Bourekas E, Boulter D, Fetko N, Cochran E, Zoller I, Chakravarthy V, Tili E, Elder JB, Lonser R, Elguindy A, Soghrati S, Marras W, Grecula J, Chakravarti A, Palmer J, Blakaj DM
Neurosurgery
October 11, 2023AAPM Medical Physics Practice Guideline 14.a: Yttrium-90 microsphere radioembolization.
Busse NC, Al-Ghazi MSAL, Abi-Jaoudeh N, Alvarez D, Ayan AS, Chen E, Chuong MD, Dezarn WA, Enger SA, Graves SA, Hobbs RF, Jafari ME, Kim SP, Maughan NM, Polemi AM, Stickel JR
J Appl Clin Med Phys
September 22, 2023Pulse parameter optimizer: an efficient tool for achieving prescribed dose and dose rate with electron FLASH platforms.
Jain S, Cetnar A, Woollard J, Gupta N, Blakaj D, Chakravarti A, Ayan AS
Phys Med Biol
April 28, 2023Framework for Quality Assurance of Ultra-High Dose Rate Clinical Trials Investigating FLASH Effects and Current Technology Gaps.
Zou W, Zhang R, Schueler E, Taylor PA, Mascia AE, Diffenderfer ES, Zhao T, Ayan AS, Sharma M, Yu SJ, Lu W, Bosch WR, Tsien C, Surucu M, Pollard-Larkin JM, Schuemann J, Moros EG, Bazalova-Carter M, Gladstone DJ, Li H, Simone CB, Petersson K, Kry SF, Maity A, Loo BW, Dong L, Maxim PG, Xiao Y, Buchsbaum JC
Int J Radiat Oncol Biol Phys
January 1, 2022Spine Stereotactic Body Radiotherapy to Three or More Contiguous Vertebral Levels.
Dibs K, Blakaj DM, Prasad RN, Olausson A, Bourekas EC, Boulter D, Ayan AS, Cochran E, Marras WS, Mageswaran P, Thomas E, Lee H, Grecula J, Raval RR, Mendel E, Scharschmidt T, Lonser R, Chakravarti A, Elder JB, Palmer JD
Front Oncol
November 1, 2021Circumferential Stereotactic Body Radiotherapy for Spine Metastasis: The Feasibility, Toxicity and Local Control.
Dibs K, Palmer JD, Olausson A, Bourekas E, Boulter D, Ayan AS, Cochran ER, Yildiz V, Grecula JC, Arnett ALH, Raval R, Beyer S, Scharschmidt T, Elder JB, Chakravarti A, Mendel E, Blakaj DM
Int J Radiat Oncol Biol Phys
September 28, 2021Interpretation of intrafraction motion review data and method for verification.
Graeper G, Cetnar A, Ayan AS, Weldon M
J Appl Clin Med Phys
September 20, 2021A framework for automated and streamlined kV cone beam computed tomography image quality assurance: a multi-institutional study.
Ayan AS, Kim G, Whitaker M, Al-Hallaq H, Hsu SH, Woollard J, Roberts D, Shtraus N, Gao S, Gupta N, Moran JM
Biomed Phys Eng Express
February 11, 2021Postoperative Stereotactic Body Radiotherapy for Spinal Metastasis and Predictors of Local Control.
Blakaj DM, Palmer JD, Dibs K, Olausson A, Bourekas EC, Boulter D, Ayan AS, Cochran E, Marras WS, Mageswaran P, Katzir M, Yildiz VO, Grecula J, Arnett A, Raval R, Scharschmidt T, Elder JB, Lonser R, Chakravarti A, Mendel E
Neurosurgery
January 20, 2021Prospective Dual-Surrogate Validation Study of Periodic Imaging during Treatment for Accurately Monitoring Intrafraction Motion of Prostate Cancer Patients.
Cetnar A, Ayan AS, Graeper G, Weldon M, Woods K, Klamer B, Pan X, Martin DD, Diaz DA, Gupta N
Radiother Oncol
September 23, 2020Contemporary Understandings of Cardiovascular Disease After Cancer Radiotherapy: a Focus on Ischemic Heart Disease.
Kim L, Loccoh EC, Sanchez R, Ruz P, Anaba U, Williams TM, Slivnick J, Vallakati A, Baliga R, Ayan A, Miller ED, Addison D
Curr Cardiol Rep