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Richard Y. Wu, M.S.

Present Title & Affiliation

Primary Appointment

Sr. Medical Physicist, Department of Radiation Physics, The University of Texas MD Anderson Cancer Center, Houston, TX

Education & Training

Degree-Granting Education

1990 University of Tennessee, Knoxville, TN, MS, Nuclear Engineering (Health Physics option)
1983 Harbin Commerce University, China, BS, Electrical Engineering

Board Certifications

2002 American Board of Radiology, Therapy Physics
1996 American Board of Radiology, Diagnostic Physics
1993 American Board of Science in Nuclear Medicine


Administrative Appointments/Responsibilities

Medical Physicist, Memorial Hermann Health System, Houston, TX, 9/2001-5/2003
Medical Physicist, Forest Park Hospital/Medical Physics Services, Inc, St. Louis, MO, 12/1999-8/2001
Medical Physicist, Radiation Safety Officer, Allina Health System, St. Paul, MN, 8/1995-12/1999
Medical Physicist / Instructor, St. Luke’s Episcopal, Texas Children’s Hospitals, Houston, TX, Houston, TX, 12/1990-7/1995

Professional Memberships

American Association of Physicist in Medicine
Member, Subcommittee on Radiation Safety, 2013-present
Member, 1991-present
American Board of Radiology
Question Writer, Diagnostic Radiology Physics, 2014-present
Oral Board Examiner on Radiation Oncology Physics, 2014
American College of Radiology
Member, 1996-present
American Society for Radiation Oncology
Member, 2004-present

Selected Publications

Peer-Reviewed Original Research Articles

1. Chang JY, Li H, Zhu XR, Liao Z, Zhao L, Liu A, Li Y, Sahoo N, Poenisch F, Gomez DR, Wu R, Gillin M, Zhang X. Clinical Implementation of Intensity Modulated Proton Therapy for Thoracic Malignancies. Int J Radiat Oncol Biol Phys. e-Pub 9/2014. PMID: 25260491.
2. Zhu XR, Poenisch F, Li H, Zhang X, Sahoo N, Wu RY, Li X, Lee AK, Chang EL, Choi S, Pugh T, Frank SJ, Gillin MT, Mahajan A, Grosshans DR. A single-field integrated boost treatment planning technique for spot scanning proton therapy. Radiat Oncol 9:202, 2014. e-Pub 9/2014. PMID: 25212571.
3. Liu W, Mohan R, Park P, Liu Z, Li H, Li X, Li Y, Wu R, Sahoo N, Dong L, Zhu XR, Grosshans DR. Dosimetric benefits of robust treatment planning for intensity modulated proton therapy for base-of-skull cancers. Pract Radiat Oncol 4(6):384-91, 2014. e-Pub 1/2014. PMCID: PMC4238033.
4. Mackin D, Li Y, Taylor MB, Kerr M, Holmes C, Sahoo N, Poenisch F, Li H, Lii J, Amos R, Wu R, Suzuki K, Gillin MT, Zhu XR, Zhang X. Improving spot-scanning proton therapy patient specific quality assurance with HPlusQA, a second-check dose calculation engine. Med Phys 40(12):121708, 12/2013. PMID: 24320494.
5. Quan EM, Liu W, Wu R, Li Y, Frank SJ, Zhang X, Zhu XR, Mohan R. Preliminary evaluation of multifield and single-field optimization for the treatment planning of spot-scanning proton therapy of head and neck cancer. Med Phys 40(8):081709, 8/2013. PMCID: PMC3732307.
6. Kandula S, Zhu X, Garden AS, Gillin M, Rosenthal DI, Ang KK, Mohan R, Amin MV, Garcia JA, Wu R, Sahoo N, Frank SJ. Spot-scanning beam proton therapy vs intensity-modulated radiation therapy for ipsilateral head and neck malignancies: a treatment planning comparison. Med Dosim 38(4):390-4, 2013. e-Pub 8/2013. PMID: 23916884.
7. Arjomandy B, Sahoo N, Zhu XR, Zullo JR, Wu RY, Zhu M, Ding X, Martin C, Ciangaru G, Gillin MT. An overview of the comprehensive proton therapy machine quality assurance procedures implemented at The University of Texas M. D. Anderson Cancer Center Proton Therapy Center-Houston. Med Phys 36(6):2269-82, 6/2009. PMID: 19610316.
8. Sahoo N, Zhu XR, Arjomandy B, Ciangaru G, Lii M, Amos R, Wu R, Gillin MT. A procedure for calculation of monitor units for passively scattered proton radiotherapy beams. Med Phys 35(11):5088-97, 11/2008. PMID: 19070243.
9. Zullo JR, Kudchadker R, Wu R, Lee A, Prado K. Implication of CT Table Sag on Geometrical Accuracy During Virtual Simulation. Med Dosim 32(4):233-6, 2007. PMID: 17980822.
10. Murphy P , Wu Y, Glaze S. Attenuation properties of lead composite aprons. Radiology 186 269:272, 1993.


1. Hojo Y, Gillin M, Suzuki K, Wu R, Zhu X. 3D Collision Viewer for Proton Therapy Treatment Planning. Medical Physics 40(6):SU-E-T-251, 6/2013.
2. Sahoo N, Dhanesar S, Poenisch F, Lii M, Li H, Zhang X, Amos R, Wu R, Gillin M, Zhu X. Application of a Semi-empirical Formula to Determine Spread Out Bragg Peak Factors and Range Shifter Factors From Measured Depth Dose Curves for Passively Scattered Proton Beams. Medical Physics 40(6):SU-E-T-04, 6/2013.
3. Mackin D, Zhang X, Li Y, Taylor M, Kerr M, Holmes C, Sahoo N, Poensich F, Li H, Lii M, Amos R, Wu R, Suzuki K, Gillin M, Zhu X. Improving Spot Scanning Proton Therapy Patient-Specific Quality Assurance Through Early Application of Second-Check Dose Calculation Software. Medical Physics 40(6):SU-E-T-157, 6/2013.
4. Dhanesar S, Sahoo N, Kerr M, Taylor M, Summers P, Alvarez P, Wu R, Poenisch F, Zhu X, Gillin M. Intensity Modulated Proton Therapy Plans with Multiple Fields for Prostate Cancer. Medical Physics 40(6):SU-E-T-403, 6/2013.
5. Wu RY, Wisdom P, Sahoo N, Lii M, Lee AK, Gillin MT, Zhu M. A novel universal nozzle collimator for X-ray imaging during proton treatment. 51st PTCOG Annual Meeting, Seoul, South Korea, May 14-19, 2012, 5/2012.
6. Quan E, Liu W, Li Y, Zhang X, Zhu X, Mohan R, Wu R. Improvement in robustness and delivery efficiency of intensity-modulated proton therapy using single-field optimization with energy absorber. 54th Annual AAPM Meeting, Charlotte, NC, July 29-August 2, 2012, 2012.
7. Song X, Wu R, Poenisch F, Zhu XR, Sahoo N, Gillin M. The effect of planning CT image noise level on the calculated proton beam range and dose uncertainty. 50th Annual PTCOG, Philadelphia, PA, May 12-14, 2011, 2011.
8. Song X, Wu R, Sahoo N, Poenisch F, Zhu XR, Gillin M. The effect of planning CT images noise level on the calculated proton beam range and dose uncertainty. 50th Annual PTCOG Meeting, 2010.
9. Arjomandy B, Sahoo N, Zhu XR, Zullo J, Wu R, Zhu M, Ding X, Gillin M. An overview of comprehensive proton machine quality assurance at UTMD Anderson Cancer Center. 50th AAPM Annual Meeting, July 27-31, 2008.
10. Li H, Liu R, Wu R, Sahoo N, Mohan R, Gillin M, Zhu XR. Effect of Ct calibration phantom size on the range in proton radiation therapy. 50th AAPM Annual Meeting, July 27-31, 2008.
11. Wu R, Amos R, Sahoo N, Kornguth D, Bluett J, Gillin M, Zhu XR. Effect of CT truncation artifacts toproton dose calculation. 50th AAPM Annual Meeting, July 27-31, 2008.
12. Liu R, Prado K, Wu R and Balter P. A CT Daily Quality Assurance On-Couch Procedure and Phantom in Radiation Oncology, 2007.
13. Wu R, Zhang X, Amos R, Prado K, Lii M, Sahoo N, Gillin M, Zhu XR. Evaluation of titanium metal imaging artifacts on proton dose calculation. 49th AAPM Annual Meeting, July 22-26, 2007.
14. Liu R, Prado K, Wu R, Stevens D, Pan T and Cody D. Optimal CT Imaging Protocol Settings for CT Simulators, 2007.
15. Liu R, Prado K, Wu R, Stevens D, Pan T, Cody D. Optimal CT imaging protocol settings for CT simulators. 49th AAPM Annual Meeting, July 22-26, 2007.
16. Sahoo N, Zhu X, Lii M, Amos R, Arjomandy B, Wu R and Gillin M. Study of Dose Distribution in Passively Scattered Proton Beams for Small Field Sizes, 2007.
17. Zhu XR, Zhang L, Kudchadker R, Wu R, Balter P, Mohan R, Gillin M and Dong L. Clinical Implementation of Cone-Beam CT for Image-Guide Radiation Therapy, 2006.
18. Lindsay P, Zhu X, Zhang L, Wu R, Kudchadker R, Salehpour M, Liu R, Mohan R, Gillin M and Dong L. Effect of measured cone-beam CT-density calibration on dose calculations. 48th AAPM Annual Meeting, July 31st-August 3rd, 2006.
19. Zullo J, Kudchadker, Wu R, Lee A and Prado K. Implication of CT Couch Sag on Geometrical Accuracy During Virtual Simulation, 2006.
20. Liengsawangwong P, Kudchadker R, Wu R, Session R, Diel T, Aleman G, Dong L, Gillin M and Zhu X. Mechanical Radiation and Imaging Isocenter Quantification on Four Varian On-Board Imager Clinacs, 2006.
21. Wu R, Dong L, Tung S, Gillin M. Accuracy of CT Numbers and Its Effect On Dose Calculations. 47th AAPM Annual Meeting, July 23-29, 2005, 7/2005.

Last updated: 1/25/2016