1. Minnesota


  1. Radiology


  1. PhD - Medical Physics University of Wisconsin, Madison
  2. MS - Medical Physics University of Wisconsin, Madison
  3. BS - Physics Hope College


  1. American Board of Radiology - Diagnostic Radiological Physics
  2. Diagnostic Radiological Physics

Primary Appointment

  1. Radiology

Academic rank

  1. Professor of Biomedical Engineering
  2. Professor of Medical Physics

Professional Highlights

  • Co-Chair, Science Council, American Association of Physicists in Medicine, 2011-present
  • Member, Biomedical Imaging Technology Study Section, National Institutes of Health (NIH), 2012-2016
  • Member, Technical Electronic Product Radiation Safety Standards Committee of the Medical Devices Advisory Committee, United States Food and Drug Administration, 2012
  • Third Vice President, Radiological Society of North America, 2011


  • X-ray CT: new technology, new applications (including cardiac CT, screening exams), exam optimization, dose measurement and dose reduction, U.S. and International standardization efforts for CT image quality and dose


See my publications


See a description of research activities.