Ramaswamy Sadagopan, M.S.
Department of Radiation Physics, Division of Radiation Oncology - Clinical
About Ramaswamy Sadagopan
Medical physicist test
Present Title & Affiliation
Primary Appointment
Senior Medical Physicist, Radiation Physics, The University of Texas MD Anderson Cancer Center, Houston, TX
Education & Training
Degree-Granting Education
| 1989 | University of Texas Health Science Center, Houston, Texas, US, Medical Physics, M.S |
| 1983 | Sri Paramakalyani College, Alwarkurichi, IN, Physics, M.S |
| 1980 | St. Xavier’s College, Palayamkottai, IN, Mathematics and Chemistry, BS |
Postgraduate Training
| 1982-1983 | Diploma in Radiological and Hospital Physics, University of Bombay, Bombay |
Licenses & Certifications
| 2002 | Medical Physicist License awarded by the Texas Medical Board |
| 1994 | Not specified |
| 1993 | American Board of Radiology in Therapeutic Radiology |
| null | Florida State Therapeutic Radiological Physicist |
Experience & Service
Faculty Academic Appointments
Radiation Physicist, St. Francis Memorial Hospital, Grand Island, NE, 2001 - 2002
Faculty Assistant, Radiation Oncology, University of Florida, Gainesville, FL, 1998 - 1999
Radiation Physicist, Florida Community Cancer Center, Dunedin, FL, 1994 - 1997
Radiation Safety Officer, Bishop Clarkson Memorial Hospital, Omaha, NE, 1989 - 1994
Radiation Physicist, Bishop Clarkson Memorial Hospital, Omaha, NE, 1989 - 1994
Lecturer, Physics, Arul Andavar College, Madurai, 1983 - 1983
Professional Memberships
Selected Publications
Peer-Reviewed Articles
- Venkatesulu BP, Sharma A, Pollard-Larkin JM, Sadagopan R, Symons J, Neri S, Singh PK, Tailor R, Lin SH, Krishnan S. Author Correction: Ultra high dose rate (35 Gy/sec) radiation does not spare the normal tissue in cardiac and splenic models of lymphopenia and gastrointestinal syndrome. Sci Rep 10(1):11018, 2020. e-Pub 2020. PMID: 32601350.
- Venkatesulu BP, Sharma A, Pollard-Larkin JM, Sadagopan R, Symons J, Neri S, Singh PK, Tailor R, Lin SH, Krishnan S. Ultra high dose rate (35?Gy/sec) radiation does not spare the normal tissue in cardiac and splenic models of lymphopenia and gastrointestinal syndrome. Sci Rep 9(1):17180, 2019. e-Pub 2019. PMID: 31748640.
- Pollard JM, Wen Z, Sadagopan R, Wang J, Ibbott GS. The Future of Image-Guided Radiotherapy will be MR-Guided. Br J Radiol 90(1073):20160667, 2017. e-Pub 2017. PMID: 28256898.
- Pollard J, Prajapati S, Gao S, Nitsch P, Sadagopan R, Wang X, Balter P. SU-G-JeP3-15: Is the Reproducibility with Respect to Bone of Tumor Position at Simulation for Breath Hold CT Scans Correlated to the Reproducibility for Multiple Breath Hold CBCTs at Treatment in SBRT Thoracic Patients?. Med Phys 43(6):3673, 2016. e-Pub 2016. PMID: 28046884.
- Peng Y, Vedam S, Chang JY, Gao S, Sadagopan R, Bues M, Balter P. Implementation of Feedback-Guided Voluntary Breath-Hold Gating for Cone Beam CT-Based Stereotactic Body Radiotherapy. Int J Radiat Oncol Biol Phys 80(3):909-17, 2011. e-Pub 2011. PMID: 21470784.
- Benedict SH, Yenice KM, Followill D, Galvin JM, Hinson W, Kavanagh B, Keall P, Lovelock M, Meeks S, Papiez L, Purdie T, Sadagopan R, Schell MC, Salter B, Schlesinger DJ, Shiu AS, Solberg T, Song DY, Stieber V, Timmerman R, Tomé WA, Verellen D, Wang L, Yin FF. Stereotactic body radiation therapy: the report of AAPM Task Group 101. Medical Physics 37(8):4078-101, 2010. e-Pub 2010. PMID: 20879569.
- Sadagopan R, Bencomo JA, Martin RL, Nilsson G, Matzen T, Balter PA. Characterization and clinical evaluation of a novel IMRT quality assurance system. J Appl Clin Med Phys 10(2):2928, 2009. e-Pub 2009. PMID: 19458595.
Review Articles
- Pollard-Larkin JM, Briere TM, Kudchadker RJ, Sadagopan R, Nitsch PL, Wang XA, Salehpour M, Wang J, Vedam S, Nelson CL, Sahoo N, Zhu XR, Court LE, Balter PA, Robinson IJ, Yang J, Howell RM, Followill DS, Kry S, Beddar SA, Martel MK. Our Experience Leading a Large Medical Physics Practice During the COVID-19 Pandemic. Adv Radiat Oncol 6(4):100683, 2021. e-Pub 2021. PMID: 33824935.
Abstracts
- Venkatesulu B, Sharma A, Pollard-Larkin J, Sadagopan R, Tailor R, Aleman, Neri S, Symons J, Gillin M, Balter, Lin S, Krishnan S. Ultrahigh Dose Rate FLASH Radiation Does Not Spare the Immune System in Cardiac and Splenic Models of Lymphopenia. 61st Annual Meeting and Exhibition of the American Association of Physicists in Medicine, July 14-18, 2019, San Antonio, Texas(TU-F115-GePD-F4-5), 2019. e-Pub 2019.
- Sadagopan R, Pollard-Larkin J, Tailor R, Balter P, Gillin M, Symons J. Characterization of a Non-Clinical FLASH Beam. 61st Annual Meeting and Exhibition of the American Association of Physicists in Medicine, July 14-18, 2019, San Antonio, Texas(PO-GePV-P-37), 2019. e-Pub 2019.
- Hoang G, James R, Lee Y, H, Nguyen J, Rebueno N, Sadagopan R. Increasing Delivery Efficiency by Reducing the Number of Arcs in VMAT Lung Cancer Treatment. American Association of Medical Dosimetrists 43rd Annual Meeting, June 17-21, 2018, Austin, Texas, 2018. e-Pub 2018.
- Miller T, Nunez Albermann S, Raju B, Johnson A, Sutton J, Sadagopan R. Reducing Treatment Time and MUs by Using Dynamic Conformal Arc Therapy for SBRT Breath-Hold Patients. American Association of Medical Dosimetrists 43rd Annual Meeting, June 17-21, 2018, Austin, Texas, 2018. e-Pub 2018.
- Pollard J, Prajapati S, Gao S, Nitsch P, Sadagopan R, Wang X, Balter P. Is the Reproducibility with Respect to Bone of Tumor Position at Simulation for Breath Hold CT Scans Correlated to the Reproducibility for Multiple Breath Hold CBCTs at Treatment in SBRT Thoracic Patients?. Med Phys 43(6):3673, 2016. e-Pub 2016. PMID: 28046884.
- Lewis D, Wang X, Gao S, Nitsch P, Pollard J, Sadagopan R, Balter P. A Dosimetric Comparison of Two Treatment Setups for Lung Stereotactic Body Radiation Therapy (SBRT) Patients. Med Phys 42(6):3336, 2015. e-Pub 2015. PMID: 26127692.
- Gao S, Balter P, Wang X, Sadagopan R, Pollard J. Detection of the Photon Target Damage in Varian Linac Based On Periodical Quality Assurance Measurements. Med Phys 42:3389, 2015. e-Pub 2015.
- Sadagopan R, Yang J, Li H. Dual Energy Planar Image Based Localization in the Absence of On-Board CT Images. Med Phys 41(6):216-217, 2014. e-Pub 2014. PMID: 28037991.
- Sadagopan R, Balter P. Evaluation of Off Target Isocenter Placement on Target Coverage and Critical Structure Dose. Med Phys 40:370, 2013. e-Pub 2013.
- Sadagopan R, Kerns J. Is Correction for the Sag of EPID Panel Necessary for Proper Evaluation of Picket Fence Test in Dynamic Mode?. Med Phys 39(6):3717, 2012. e-Pub 2012.
- Sadagopan R, Wang L. A Novel Complexity Index to Evaluate IMRT QA. Med Phys 38:3596, 2011. e-Pub 2011.
- Melancon A, Sadagopan R. Correction factors for secondary MU calculation in SBRT lung radiation therapy. Med Phys 38:3623, 2011. e-Pub 2011.
- Peng Y, Vedam S, Gao S, Polf J, Sadagopan R, Balter P. Implementation of Feedback Guided Voluntary Breath Holding Gating for CBCT Based Stereotactic Body Radiotherapy. Med Phys 36:2654, 2009. e-Pub 2009.
- Ikushima H, Balter P, Change J, Hunjan S, Sadagopan R, Yu Z, Zhang Y, Dong L. Daily alignment results for in-room CT-guided stereotactic body radiation therapy for lung cancer 35(6):2892, 2008. e-Pub 2008.
- Sadagopan R, Bencomo J, Martin R, Balter P, Vedam S, Nilsson G. Characterization, Commissioning And Evaluation Of Delta 4 IMRT QA System. Med Phys 34/6:2560, 2007. e-Pub 2007.
- Lindsay P, Briere T, Balter P, Sadagopan R, Starkschall G, Zhu X, Beddar S. Effect of Respiratory Gating on the Dose Distribution of Dynamic Wedge and IMRT Treatment Fields. Med Phys 34(6):2446, 2007. e-Pub 2007.
- Sadagopan R, Balter P, Hunjan S. Prediction of Patient Treatment (couch) Coordinate Based on Treatment Planning CT Image. Med Phys 34(6):2483, 2007. e-Pub 2007.
- Sahoo, N, Kazi A, Cho S, Sadagopan R, Wang C, Shiu A. A Procedure for Correcting the Effect of Detector Properties on Measured Profiles of Small Field MV X-Ray Beams. Med Phys 33:1908, 2006. e-Pub 2006.
- Ramaswamy JS, Saple MP, Deshpande DD, Deore SM, Pandhe R. Dosimetry of Template Implants using Ir-192 Sources. Proceedings of the Asian Regional Conference, 1986. e-Pub 1986.
- Deshpande DD, Pendse AM, Deore SM, Ramaswamy JS, Pandhe RP. Experience with CT Treatment Planning System. Proceedings of the Asian Regional Conference, 1986. e-Pub 1986.
- Shanta A, Deore SM, Ramaswamy JS, Das KR. Estimation of Radiation Dose from Ir-192 Wire Handling in Brachytherapy. Proceedings of the Asian Regional Conference, 1986. e-Pub 1986.
Patient Reviews
CV information above last modified July 22, 2026