Radiation Oncology

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Guang-Pei Chen, PhD
Clinical Director of Medical Physics

Department of Radiation Oncology
8701 Watertown Plank Road
Milwaukee, WI 53226
(414) 805-9346



  • Doctor of Philosophy, Physics, Tsinghua University, Beijing, China (1994).
  • Bachelors of Science, Physics, Tsinghua University, Beijing, China (1988).


  • Postdoctoral Fellow, Medical Physics, Medical College of Wisconsin, Milwaukee, WI (2005-2006).


  • Therapeutic Radiology Physics, American Board of Radiology (2010).

Representative Publications

  • Kainz K, White J, Chen GP, Herman J, Li XA.  Simultaneous irradiation of the breast and regional lymph nodes in prone position using helical tomotherapy.  Br J Radiol, Mar 28, Epub ahead of print, 2012.
  • Kainz K, Chen GP, Chang YW, Prah D, Qi S, Shukla HP, Stahl J, Li XA.  A planning and delivery study of a rotational IMRT technique with burst delivery. Med Phys 38(9): 5104-18, 2011.
  • Ahunbay EE, Peng C, Chen GP, Narayanan S, Yu C, Lawton C, Li XA. An on-line replanning scheme for interfractional variations. Med Phys 35(8):3607-15 2008.
  • Chen GP, Ahunbay E, Li XA. Automated computer optimization for 3D treatment planning of breast irradiation. Med Phys 35(6):2253-8, 2008.
  • Chen GP, Ahunbay E, Schultz C, Li XA. Development of an inverse optimization package to plan nonuniform dose distributions based on spatially inhomogeneous radiosensitivity extracted from biological images. Med Phys 34(4):1198-205, 2007.
  • Ahunbay EE, Chen GP, Thatcher S, Jursinic PA, White J, Albano K, Li XA. Direct aperture optimization-based intensity-modulated radiotherapy for whole breast irradiation. Int J Radiat Oncol Biol Phys 67(4):1248-58, 2007.
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