Sarath Vijayan, Ph.D., DABR
Department of Radiation Physics, Division of Radiation Oncology
Present Title & Affiliation
Primary Appointment
Assistant Professor, Radiation Physics, The University of Texas MD Anderson Cancer Center, Houston, TX
Dual/Joint/Adjunct Appointment
Assistant Professor, Radiation Physics, The University of Texas MD Anderson Cancer Center, Houston, TX
Education & Training
Degree-Granting Education
| 2017 | University at Buffalo, The State University of New York, Buffalo, New York, US, Medical Physics, Ph.D |
| 2016 | University at Buffalo, The State University of New York, Buffalo, New York, US, Biophysics (Medical Physics Specialization), M.S |
| 2011 | University of Hyderabad, Telangana, IN, Physics, M.S |
| 2009 | Manonmaniam Sundaranar University, Tamil Nadu, IN, Physics, BS |
Postgraduate Training
| 2018-2020 | Clinical Residency, Therapeutic Medical Physics, Memorial Sloan Kettering Cancer Center, New York, New York |
Experience & Service
Administrative Appointments/Responsibilities
Assistant Radiation Safety Officer, Radiology Department, Erie County Medical Center, Buffalo, NY, 2013 - 2017
Other Professional Positions
Postdoctoral Fellow (Scientific Programmer), Canon (Toshiba) Stroke & Vascular Research Center, State Univesity of New York, Buffalo, Buffalo, NY, 2017 - 2018
Assistant Radiation Safety Officer, Erie County Medical Center, Buffalo, NY, 2013 - 2020
Research Assistant, Canon (Toshiba) Stroke & Vascular Research Center, State University of New York, Buffalo, Buffalo, NY, 2013 - 2017
Honors & Awards
| 2024 | Golden Glove Quality & Safety Award, The University of Texas MD Anderson Cancer Center |
| 2017 | Jacobs School of Medicine and Biomedical Sciences Dean’s Scholarship, State University of New York, Buffalo |
| 2017 | Clara A. March Medical Scholarship, Clara A. March Scholarship Fund |
| 2013 - 2017 | SUNY Research Foundation Graduate Scholarship, Canon Stroke and Vascular Research Center, State University of New York, Buffalo |
| 2011 - 2013 | Graduate Teaching Assistantship, Department of Physics, State University of New York, Buffalo |
Selected Publications
Peer-Reviewed Articles
- Reiazi, R, Ding, Y, Vijayan, S, Yang, J, Subashi, ED, Zhao, Y, Lee, B, Emory, HL, Dinh, V, Swiedom, GL, Deng, J, Lin, MH, Balter, PA, Kudchadker, RJ, Cha, E, Choi, S, Kim, Y, Han, EY, Prajapati, S. Development and implementation of an MRI-only simulation, planning, and treatment workflow for prostate radiotherapy using synthetic CT on MR-linac. Journal of applied clinical medical physics 27(2), 2026. e-Pub 2026. PMID: 41663318.
- Mohamad O, Kouzi ZE, Kouzy R, Choi S, Mok H, Hoffman K, Nguyen QN, Hassanzadeh CJ, Tang C, Park RJ, Shah SJ, McGuire SE, Mayo LL, Kim Y, Prajapati S, Vijayan S, Kudchadker RJ, Bruno TL, Frank SJ. Safety and early outcomes of proton therapy and low-dose rate brachytherapy boost for patients with prostate cancer. Brachytherapy 24(2):301-309, 2025. e-Pub 2025. PMID: 40024668.
- Zhang L, Vijayan S, Huang S, Song Y, Li T, Li X, Hipp E, Chan MF, Kuo HC, Tang X, Tang G, Lim SB, Lovelock DM, Ballangrud A, Li G. Commissioning of optical surface imaging systems for cranial frameless stereotactic radiosurgery. J Appl Clin Med Phys 22(5):182-190, 2021. e-Pub 2021. PMID: 33779052.
- Guo C, Xiong Z, Vijayan S, Rudin S, Bednarek DR. Developing a database of 3-D scattered radiation distributions for a c-arm fluoroscope as a function of exposure parameters and phantom. Proc SPIE Int Soc Opt Eng 10573, 2018. e-Pub 2018. PMID: 29899589.
- Vijayan S, Xiong Z, Guo C, Troville J, Islam N, Rudin S, Bednarek DR. Calculation of Forward Scatter Dose Distribution at the skin entrance from the patient table for fluoroscopically guided interventions using a pencil beam convolution kernel. Proc SPIE Int Soc Opt Eng 10573, 2018. e-Pub 2018. PMID: 29904230.
- Xiong Z, Vijayan S, Guo C, Rudin S, Bednarek DR. Investigation of organ dose variation with adult head size and pediatric age for neuro-interventional projections. Proc SPIE Int Soc Opt Eng 10573, 2018. e-Pub 2018. PMID: 29937616.
- Vijayan S, Xiong Z, Rudin S, Bednarek DR. Calculation of the entrance skin dose distribution for fluoroscopically guided interventions using a pencil beam backscatter model. J Med Imaging (Bellingham) 4(3):031203, 2017. e-Pub 2017. PMID: 28630887.
- Xiong Z, Vijayan S, Rudin S, Bednarek DR. Assessment of organ and effective dose when using region-of-interest attenuators in cone-beam CT and interventional fluoroscopy. J Med Imaging (Bellingham) 4(3):031210, 2017. e-Pub 2017. PMID: 28840169.
- Xiong Z, Vijayan S, Rudin S, Bednarek DR. Monte Carlo investigation of backscatter point spread function for X-ray imaging examinations. Proc SPIE Int Soc Opt Eng 10132, 2017. e-Pub 2017. PMID: 28615791.
- Xiong Z, Vijayan S, Rudin S, Bednarek DR. Organ and effective dose reduction for region-of-interest (ROI) CBCT and fluoroscopy. Proc SPIE Int Soc Opt Eng 10132, 2017. e-Pub 2017. PMID: 28638169.
- Vijayan S, Xiong Z, Shankar A, Rudin S, Bednarek DR. Skin dose mapping for non-uniform x-ray fields using a backscatter point spread function. Proc SPIE Int Soc Opt Eng 10132, 2017. e-Pub 2017. PMID: 28649154.
- Vijayan S, Shankar A, Rudin S, Bednarek DR. Integration of kerma-area product and cumulative air kerma determination into a skin dose tracking system for fluoroscopic imaging procedures. Proc SPIE Int Soc Opt Eng 9783, 2016. e-Pub 2016. PMID: 35261425.
- Xiong Z, Vijayan S, Rana V, Jain A, Rudin S, Bednarek DR. Lens of the eye dose calculation for neuro-interventional procedures and CBCT scans of the head. Proc SPIE Int Soc Opt Eng 9783, 2016. e-Pub 2016. PMID: 28638173.
- Vijayan S, Xiong Z, Rudin S, Bednarek DR. A system to track skin dose for neuro-interventional cone-beam computed tomography (CBCT). Proc SPIE Int Soc Opt Eng 9783, 2016. e-Pub 2016. PMID: 28649161.
- Vijayan S, Rana VK, Rudin S, Bednarek DR. Incorporating Corrections for the Head-Holder and Compensation Filter when Calculating Skin Dose during Fluoroscopically-Guided Interventions. Proc SPIE Int Soc Opt Eng 9412:94122I, 2015. e-Pub 2015. PMID: 26819488.
Review Articles
- Vijayan, S, Theeler, JJ, Fu, Z, Kim, Y. Systematic review of artificial intelligence in brachytherapy. Journal of Contemporary Brachytherapy 18(1):85-114, 2026. e-Pub 2026. PMID: 42232846.
Abstracts
- Zhang L, Vijayan S, Song Y, Hipp E, Guo HC, Chan M, Hunt M, Tang L, Li G. A Large-Scale Clinical Evaluation of the Effectiveness of Calibration to Reduce Couch-Angle Dependency for Frameless Stereotactic Radiosurgery. Med Phys 46(6), 2019. e-Pub 2019.
- Xiong Z, Vijayan S, Guo C, Choudhary P, Rudin S, Bednarek DR. Lateral Head Shielding for Eye Lens Dose Reduction for Neuro-CBCT and Interventional Fluoroscopic Procedures. Med Phys 46(6), 2017. e-Pub 2017.
- Choudhary P, Vijayan S, Karthikeyan B, Xiong Z, Rudin S, Bednarek DR. Real-Time, Image-Frame-Specific Magnification Factor Determination During Fluoroscopically Guided Interventions. Med Phys 44(6), 2017. e-Pub 2017.
- Xiong Z, Meneghin JS, Vijayan S, Guo C, Rudin S, Bednarek DR. Method for Eye Lens Dose Estimation During Fluoroscopically Guided Neuro-Interventional Procedures. Med Phys 44(6), 2017. e-Pub 2017.
- Guo C, Xiong Z, Vijayan S, Rudin S, Bednarek DR. Scattered Radiation Dose-Rate Distribution Around An Interventional C-Arm Fluoroscope and Variation with Exposure Parameters. Med Phys 44(6), 2017. e-Pub 2017.
- Xiong Z, Vijayan S, Rudin S, Bednarek DR. Dose Reduction to the Lens of the Patient's Eye when Using Small Lead Shields over the Temporal Region of the Head and its Effect on Image Quality for Neuro Cone-Beam Computed Tomography (CBCT) Scans and Interventional Fluoroscopic Procedure. Rad Soc N Amer:SSC14-08, 2017. e-Pub 2017.
- Vijayan S, Xiong Z, Shankar A, Rudin S, Bednarek DR. A Backscatter Point Spread Function for Entrance Skin Dose Determination. Med Phys 43(6):3748-3749, 2016. e-Pub 2016.
- Vijayan S, Xiong Z, Rudin S, Bednarek DR. Kerma Area Product Calculation for Non- Uniform X-Ray Fields Using a Skin Dose Tracking System. Med Phys 43(6):3716, 2016. e-Pub 2016.
- Xiong Z, Vijayan S, Oines A, Rudin S, Bednarek DR. Automatic Calculation of Organ and Effective Dose for CBCT and Interventional Fluoroscopic Procedures. Med Phys 43(6):3749, 2016. e-Pub 2016.
- Xiong Z, Vijayan S, Meneghin JK, Rudin S, Bednarek DR. A Comparison of Head Phantoms Used for Dose Determination in Imaging Procedures. Med Phys 43(6):3640, 2016. e-Pub 2016.
- Shankar A, Russ M, Vijayan S, Bednarek DR, Rudin S. Effective Elimination of Aliased Signal Using An Apodized Aperture Pixel Design. Med Phys 43(6):3760-3761, 2016. e-Pub 2016.
- Vijayan S, Rana VK, Xiong Z, Nagesh SS, Rudin S, Bednarek DR. A Real-Time Skin- 4.Dose Mapping System for Region-Of-Interest (ROI) Fluoroscopy. Med Phys 42(6):3717, 2015. e-Pub 2015.
- Vijayan S, Rana VK, Nagesh SS, Xiong Z, Rudin S, Bednarek DR. Comparison of Kerma- Area-Product Between the Micro-Angiographic Fluoroscope (MAF) and a Flat Panel Detector (FPD) as Used in Neuro-Endovascular Procedures. Med Phys 42(6):3253-3254, 2015. e-Pub 2015.
- Xiong Z, Vijayan S, Rana VK, Rudin S, Bednarek DR. A System for Automatically Calculating Organ and Effective Dose for Fluoroscopically-Guided Procedures. Med Phys 42(6):3583, 2015. e-Pub 2015.
- Shankar A, Rana R, Vijayan S, Nagesh SVS, Ionita C, Bednarek DR, Rudin S. Noise Reduction with Over-Sampling for High Resolution Detectors Using a Spread Function Convolution Method. Med Phys 42(6):3252, 2015. e-Pub 2015.
- Islam N, Xiong Z, Vijayan S, Rudin S, Bednarek DR. The Contribution to Skin Dose Due to Scatter from the Patient Table and the Head Holder during Fluoroscopy. Mws Phya 42(6):3254, 2015. e-Pub 2015.
- Zhao Y, Alfonso CM, Bronk L, Flint D, Prajapati S, Yu H, Ding Y, Ma J, Kudchadker R, Kim Y, Vijayan S. Evaluation of Needle Reconstruction Accuracy Using C4 MRI Positive Contrast Line Markers with CISS/Fiesta-C MRI Protocol in Hybrid Gynecological Applicators for MRI-Guided Brachytherapy. AAPM Spring Clinical Meeting 2025.
- Vijayan S, Prajapati S, Yu H, Kathriarachchi V, Granger B, Kudchadker R, Kim Y, Nelson CL. Commissioning of 3D Ring Applicator Model Source Path for Gynecological High-Dose-Rate Brachytherapy. AAPM Annual meeting 2024.
- Mohamad O, Kouzi ZE, Kouzy R, Choi S, Mok H, Hoffman KE, Nguyen Q, Hassanzadeh C, Tang C, Park RJ, Shah SJ, Mcguire SE, Mayo LL, Prajapati S, Kim Y, Vijayan S, Kudchadker R, Frank SJ. Safety and Early Outcomes of External Beam Radiation Therapy with Brachytherapy Boost in Patients with Prostate Cancer: The MD Anderson Experience. Submitted for ASCO Genitourinary Cancers Symposium.
- Vijayan S. Dosimetric Evaluation Of MRI-only Hybrid Applicator Reconstruction: The Use Of MRMarker Catheters And Dedicated CISS MR Protocols. American Brachytherapy Society.
Patient Reviews
CV information above last modified August 05, 2026