Rochester, Minnesota


riederer@mayo.edu Clinical Profile


The research interests of Stephen J. Riederer, Ph.D., are in the technical development of magnetic resonance imaging (MRI). This includes use of the underlying MRI physics, development of new imaging techniques and implementation that addresses clinically important problems.

Previous projects have been in the development of fast scanning methods such as multishot echo-planar imaging for the liver and brain, fast spin-echo fluid-attenuated inversion recovery (FLAIR) imaging of the brain, and rapid gradient-echo imaging with nonstandard (centric) phase encoding orders. Contemporary projects include adapting these methods to rapid contrast-enhanced magnetic resonance angiography and dynamic contrast-enhanced perfusion imaging.

Another major aspect of Dr. Riederer's research is real-time signal processing. Developments have included magnetic resonance fluoroscopy, real-time line scanning and operator-interactive triggering for contrast-enhanced magnetic resonance angiography. Current studies include high speed, patient-specific optimization of parallel acquisition.

Dr. Riederer has long been active in the training of graduate students. He teaches didactic courses at Mayo Graduate School in MRI physics, and he has mentored more than two dozen students to Ph.D. degrees, many of whom are now active in research careers of their own.

Focus areas

  • Contrast-enhanced magnetic resonance angiography
  • Parallel acquisition techniques and receiver coil arrays
  • Dynamic contrast-enhanced MRI
  • Real-time MRI signal processing

Significance to patient care

Dr. Riederer's research team interacts routinely with radiologists in the in vivo evaluation of new techniques. Many of the methods developed in Dr. Riederer's laboratory have been implemented commercially and are used daily in MRI systems worldwide.

Professional highlights

  • Distinguished Investigator Award, Academy of Radiology Research, 2012
  • Distinguished Mayo Investigator Award, Mayo Clinic, 2010
  • President, International Magnetic Resonance Angiography Working Group, 2008
  • Gold Medal, International Society for Magnetic Resonance in Medicine, 2002

Clinical Studies

See my clinical studies


See my publications


Primary Appointment

  1. Consultant, Department of Radiology

Joint Appointment

  1. Consultant, Department of Physiology & Biomedical Engineering

Academic Rank

  1. Professor of Radiology


  1. Research Associate Department of Radiology, University of Wisconsin, Madison
  2. PhD - Medical Physics University of Wisconsin, Madison
  3. Research Assistant Department of Radiology, University of Wisconsin, Madison
  4. Fellow - WARF Fellow University of Wisconsin, Madison
  5. SM - Nuclear Engineering Massachusetts Institute of Technology
  6. Research Assistant Physics Research Lab, Massachusetts General Hospital
  7. BA - Mathematics University of Wisconsin, Madison
  8. Fellow - Applied Mathematics Massachusetts Institute of Technology
  9. Research Fellowship Los Alamos Scientific Laboratory

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