Hilary Bews1, Jacek Strzelczyk2, Zubair Luqman3, Davinder S Jassal1,2,4. 1. Section of Cardiology, Department of Internal Medicine, Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Rm Y3531, 409 Tache Avenue, Winnipeg, Manitoba R2H 2A6, Canada. 2. Department of Radiology, Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Rm Y3531, 409 Tache Avenue, Winnipeg, Manitoba R2H 2A6, Canada. 3. Section of Cardiac Surgery, Department of Surgery, Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Rm Y3531, 409 Tache Avenue, Winnipeg, Manitoba R2H 2A6, Canada. 4. Department of Physiology and Pathophysiology, Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Rm Y3531, 409 Tache Avenue, Winnipeg, Manitoba R2H 2A6, Canada.