Mallory C. Glenn, 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
Regular Member, The University of Texas MD Anderson Cancer Center UTHealth Graduate School of Biomedical Sciences, Houston, Texas
Assistant Professor, Radiation Physics, The University of Texas MD Anderson Cancer Center, Houston, Texas
Research Interests
As a part of the Radiation Quality Assurance Laboratory, my work provides scientific expertise in radiotherapy to support establishing appropriate quality assurance (QA) procedures used in clinical trials, including those sponsored by the National Cancer Institute (NCI). My ultimate goal is to ensure precise and reliable radiation treatments for clinical trial patients by minimizing uncertainties and maximizing accuracy. As such, my research is dedicated to enhancing radiation therapy QA through innovative techniques and continuous improvements. Currently, I am focused on advancing QA methods for stereotactic radiosurgery (SRS) applications and developing more individualized plan feedback for RQALab's phantom programs.
Education & Training
Degree-Granting Education
| 2020 | The University of Texas MD Anderson Cancer Center UTHealth Graduate School of Biomedical Sciences, Houston, Texas, US, Medical Physics, Ph.D |
| 2015 | Texas A&M University, College Station, Texas, US, Radiological Health Engineering, BS |
Postgraduate Training
| 2022-2022 | Clinical Residency, Therapeutic Medical Physics, University of Washington, Seattle, Washington |
Licenses & Certifications
| 2023 | Medical Physicist License - State of Texas |
| 2023 | Diplomate of the American Board of Radiology (DABR®) - Therapeutic Medical Physics |
Experience & Service
Other Professional Positions
Graduate Research Assistant, The University of Texas MD Anderson Cancer Center, Houston, Texas, 2015 - 2020
Radiological Safety Technician, Texas A&M University, College Station, Texas, 2015
Undergraduate Research Assistant, Texas A&M University, College Station, Texas, 2013 - 2015
Intramural Institutional Committee Activities
Voting Member, GSBS Curriculum Committee, The University of Texas MD Anderson Cancer Center UTHealth Houston Graduate School of Biomedical Sciences, 2024 - Present
Extramural Institutional Committee Activities
Member, Medical Physics Graduate Program Curriculum Review Committee, The University of Texas MD Anderson Cancer Center, 2024 - Present
Honors & Awards
| 2025 | George Starkschall Award of Excellence for an Outstanding Radiation Oncology Physics Article, American Association of Physicists in Medicine |
| 2025 | John P. McGovern Award for Outstanding Teaching - Finalist |
| 2020 | Best in Physics Oral Presentation, 2020 AAPM-COMP Joint Annual Meeting |
| 2018 - 2020 | American Legion Auxiliary Fellowship in Cancer Research |
| 2017 - 2020 | Rosalie B. Hite Fellowship in Cancer Research |
| 2016 - 2018 | MD Anderson Cancer Center UTHeath GSBS Student Travel Award |
Professional Memberships
Selected Presentations & Talks
National Presentations
- 2025. The IROC Houston Online User Portal - an online web tool for clinical trial sites. Conference. AAPM Annual Meeting. Washington, DC, US.
- 2022. Identifying poor SBRT plan performance using IMRT QA and complexity metrics. Conference. AAPM Annual Meeting. Washington, DC, US.
- 2021. 3D dosimetry of lung and cardiac shielding for total body irradiation. Conference. AAPM Annual Meeting. Virtual, US.
- 2020. The role of beam modeling errors in IROC Houston phantom failures. Conference. AAPM Annual Meeting. Virtual, US.
- 2020. Characterizing beam modeling errors in IROC Houston phantoms. Conference. Winter Institute of Medical Physics. Breckenridge, CO, US.
International Presentations
- 2020. Identifying links between beam modeling accuracy and IROC phantom performance. Conference. ESTRO 2020. Vienna, AT.
- 2020. Beam modeling variations and potential contributions to treatment delivery errors. Conference. ESTRO 2020. Vienna, AT.
Formal Peers
- 2022. Recent Trends from IROC Houston for EBRT. Invited, US.
- 2021. High Quality Treatment Plans for High Quality Delivery: How Treatment Planning Affects Us All. Invited, US.
- 2021. Phantoms, Credentialing, and Errors, Oh My! What everyone should know about credentialing for clinical trials and IROC Houston services. Invited, US.
- 2019. Lessons Learned from Anthropomorphic Phantom Audits. Invited, US.
Grant & Contract Support
| Title: | MD Anderson Incentive for Salary Award (ISA) |
| Funding Source: | The University of Texas MD Anderson Cancer Center |
| Role: | PI |
Selected Publications
Peer-Reviewed Articles
- Kry SF, Molineu A, Alvarez P, Glenn MC, Lowenstein J, Hernandez N, Nguyen T, Taylor P. Dose delivery accuracy of advanced radiotherapy: 30 years of end-to-end dosiemetry audits. Radiother Oncol 223:111649, 2026. e-Pub 2026.
- Taylor, PA, Mehrens, H, Glenn, MC, Brooks, F, Scott, H, Duan, L, Meyers, T, Rojas, DC, Yang, M, Alvarez, PE, Leif, JL, Molineu, HA, Kry, SF. Reference dosimetry data and machine performance comparison for tomotherapy delivery systems audited by IROC. Journal of applied clinical medical physics 26(12), 2025. e-Pub 2025. PMID: 41253711.
- Zhang, QS, Kang, J, Lybarger, K, Glenn, MC, Sponseller, P, Blau, KH, Ford, E. Semi-automated topic identification for radiation oncology safety event reports using natural language processing and statistical modeling. Med Phys 52(8), 2025. e-Pub 2025. PMID: 40781843.
- Brooks FM, Hussein M, Lye J, Nelson CL, Mitsuhiro N, Glenn MC, Diez P, Patel R, Shaw M, Patallo IS, Barry M, Clark CH, Lehmann J, Kry SF. Developing reference plans for evaluating global clinical trials credentialing and PSQA systems. J Appl Clin Med Phys 26(7), 2025. e-Pub 2025. PMID: 40439871.
- Brooks FM, Glenn MC, Hernandez V, Saez J, Pollard-Larkin JM, Peterson CB, Howell RM, Nelson CL, Clark CH, Kry SF. Is the Imaging Radiation Oncology Core Head and Neck Credentialing Phantom an Effective Surrogate for Different Anatomic Sites?. Int J Radiat Oncol Biol Phys 121(3):811-821, 2024. e-Pub 2024. PMID: 39362313.
- Brooks FMD, Glenn MC, Hernandez V, Saez J, Mehrens H, Pollard-Larkin JM, Howell RM, Peterson CB, Nelson CL, Clark CH, Kry SF. A radiotherapy community data-driven approach to determine which complexity metrics best predict the impact of atypical TPS beam modeling on clinical dose calculation accuracy. J Appl Clin Med Phys 25(5), 2024. e-Pub 2024. PMID: 38427776.
- Greer MD, Koger B, Glenn M, Kang J, Rengan R, Zeng J, Ford E. Predicted Inferior Outcomes for Lung SBRT With Treatment Planning Systems That Fail Independent Phantom-Based Audits. Int J Radiat Oncol Biol Phys 115(5):1301-1308, 2023. e-Pub 2023. PMID: 36535431.
- Luk SMH, Wallner K, Glenn MC, Ermoian R, Phillips MH, Tseng YD, Kim M. Effect of total body irradiation lung block parameters on lung doses using three-dimensional dosimetry. J Appl Clin Med Phys 23(4):e13513, 2022. e-Pub 2022. PMID: 34985180.
- Glenn MC, Brooks F, Peterson CB, Howell RM, Followill DS, Pollard-Larkin JM, Kry SF. Photon beam modeling variations predict errors in IMRT dosimetry audits. Radiother Oncol 166:8-14, 2022. e-Pub 2022. PMID: 34748857.
- Glenn MC, Wallner K, Luk SMH, Ermoian R, Tseng YD, Phillips M, Kim M. Impact of lung block shape on cardiac dose for total body irradiation. Phys Imaging Radiat Oncol 21:30-34, 2022. e-Pub 2022. PMID: 35243029.
- Mehrens H, Nguyen T, Edward S, Hartzell S, Glenn M, Branco D, Hernandez N, Alvarez P, Molineu A, Taylor P, Kry S. The current status and shortcomings of stereotactic radiosurgery. Neurooncol Adv 4(1):vdac058, 2022. e-Pub 2022. PMID: 35664554.
- Glenn MC, Peterson CB, Howell RM, Followill DS, Pollard-Larkin JM, Kry SF. Sensitivity of IROC phantom performance to radiotherapy treatment planning system beam modeling parameters based on community-driven data. Med Phys 47(10):5250-5259, 2020. e-Pub 2020. PMID: 32677052.
- Edward S, Glenn MC, Peterson C, Balter P, Pollard-Larkin J, Howell R, Followill D, Kry S. Dose calculation errors as a component of failing IROC lung and spine phantom irradiations. Med Phys 47(9), 2020. e-Pub 2020. PMID: 32452027.
- Glenn MC, Peterson CB, Followill DS, Howell RM, Pollard-Larkin JM, Kry SF. Reference dataset of users' photon beam modeling parameters for the Eclipse, Pinnacle, and RayStation treatment planning systems. Med Phys 47(1):282-288, 2020. e-Pub 2020. PMID: 31667870.
- Kry SF, Glenn MC, Peterson CB, Branco D, Mehrens H, Steinmann A, Followill DS. Independent recalculation outperforms traditional measurement-based IMRT QA methods in detecting unacceptable plans. Med Phys 46(8):3700-3708, 2019. e-Pub 2019. PMID: 31152568.
- Glenn MC, Hernandez V, Saez J, Followill DS, Howell RM, Pollard-Larkin JM, Zhou S, Kry SF. Treatment plan complexity does not predict IROC Houston anthropomorphic head and neck phantom performance. Phys Med Biol 63(20):205015, 2018. e-Pub 2018. PMID: 30230475.
- Carson ME, Molineu A, Taylor PA, Followill DS, Stingo FC, Kry SF. Examining credentialing criteria and poor performance indicators for IROC Houston's anthropomorphic head and neck phantom. Med Phys 43(12):6491, 2016. e-Pub 2016. PMID: 27908168.
Patient Reviews
CV information above last modified August 19, 2026