1. Department of Radiology, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, MB, Canada
2. Department of Human Anatomy and Cell Science, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, MB, Canada
3. Biomedical Engineering, Price Faculty of Engineering, University of Manitoba, Winnipeg, MB, Canada
4. Department of Radiology, Centre hospitalier de’Universite de Montreal, Montreal, Canada
5. Division of Neurology, McMaster University, Hamilton, Canada
6. Division of Neurosurgery, University of Ottawa, Ottawa, Canada
7. Division of Neurosurgery, University of Manitoba, Winnipeg, Canada
8. Faculty of Science, McGill University, Montreal, Canada