1. Center for Cardiovascular Innovation, Division of Cardiology, Department of Medicine, University of British Columbia, 2775 Laurel St, 9th Floor, Vancouver, BC V5Z 1M9, Canada
2. Department of Radiology, University of British Columbia, 2775 Laurel Street, 11th Floor, Vancouver, BC V5Z 1M9, Canada
3. Department of Cardiology, North Tees and Hartlepool NHS Foundation Trust, Hardwick Rd, Hardwick, Stockton-on-Tees TS19 8PE, UK
4. Department of Anesthesiology, Pharmacology and Therapeutics, The University of British Columbia, Medical Sciences, 2176 Health Sciences Mall Block C217, Vancouver, BC V6T 2A1, Canada