2012: Ph.D., Department of Physics & Astronomy, University of Manitoba, Thesis: Development and Application of Quantitative MRI Methods for Assessing White Matter Integrity in the Mouse Brain

2007: B.Sc. (Honours), Department of Physics, University of Winnipeg (University Silver Medal in Science: Honours)

2003: B.Sc./B.A. (General), Department of Physics & Department

Professional and Academic Experience

2018 - present: Scientific Director, PET/MRI, Lawson Health Research Institute

2014 - present: Scientist, Imaging, Lawson Health Research Institute

2014 – present: Assistant Professor, Department of Medical Biophysics, Western University, London

2012- 2014: Post-Doctoral Fellow, Biomedical Imaging Research Group, University of Manitoba


Research Group

Research Interest Area 

Medical imaging and diagnostics
Nuclear medicine
Neurological disorders

Research Overview

Dr. Thiessen joined the Lawson Imaging team to help direct and support both research and clinical development of PET/MRI capabilities using our Siemens whole body PET/MRI system including investigations into prostate cancer, heart failure and cognitive neurology.



PET/MRI, Kinetic modeling, Metabolic imaging