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Radiation Medicine




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Photo of Dr. Langner

Ulrich Langner, PhD, DABR
Clinical Medical Physicist, Assistant Professor
Department of Radiation Medicine
Chandler Medical Center, Pavilion H
800 Rose Street, C121
Lexington, KY 40536-0293
Phone: (859) 323-9947
Fax: (859) 257-4060


  • 4D CT and motion management
  • Radiation biology
  • Image Guided Radiation Therapy
  • Monte Carlo simulations
  • SBRT
  • Brachytherapy


  • B.Sc., North-West University (Potchefstroom Campus — South Africa), 1998, Physics and Applied Mathematics
  • M.Sc., North-West University (Potchefstroom Campus — South Africa), 2000, Heliospheric Physics
  • Ph.D., North-West University (Potchefstroom Campus — South Africa), 2004, Heliospheric Physics
  • Postdoctoral Training (Heliospheric Physics), Ruhr-Universität Bochum (Germany), 2004-2005
  • Postdoctoral Training (Heliospheric Physics), North-West University (Potchefstroom Campus — South Africa), 2005-2006
  • Postdoctoral Training(Medical Physics), Stanford University, 2006-2009


American Board of Radiology, Therapeutic Radiological Physics, 2012


Langner, U. W., and P.J. Keall, System and method for using prospective evaluation of displacement and velocity of a respiratory trace in a five dimensional parameter space to reduce artifacts and dosage in four dimensional computed tomography, US Patent number: 7894571.


Yamamoto, T., U.W. Langner, B.W. Loo Jr., J. Shen, P.J. Keall, Retrospective analysis of artifacts in four-dimensional CT images of 50 abdominal and thoracic radiotherapy patients, International Journal of Radiation Oncology*Biology*Physics, 72 (4), 1250-1258, 2008.

Langner, U.W. and P.J. Keall, Prospective displacement and velocity based cine 4D CT, Medical Physics, 35 (10), 4501-4512, 2008.

Langner, U.W. and P.J. Keall, Accuracy in the localization of thoracic and abdominal tumors using respiratory displacement, velocity, and phase, Medical Physics, 36 (2), 386-393, 2009.

Langner, U.W. and P.J. Keall, Quantification of artifact reduction with real-time cine four-dimensional computed tomography acquisition methods, International Journal of Radiation Oncology*Biology*Physics, 76 (4), 1242-1250, 2010. Published in Issue Highlights section

Gleason, J.F., Langner, U.W., and McGarry, R.C., Chapter 1: Imaging in Modern Radiation Oncology, Advances in Medical Physics: 2012, Anthony B. Wolbarst, Patrizio Capasso, Devon J. Godfrey, Ronald R. Price, Bruce R. Whiting, and William R. Hendee, Editors, Medical Physics Publishing, Madison, WI, 2012.

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Page last updated Friday, August 24, 2012