Ciaran E Redmond1, Brian Gibney2, Savvas Nicolaou2, Bruce B Forster2. 1. Department of Radiology, University of British Columbia, 11109-2775 Laurel St, Vancouver, BC V5Z 1M9, Canada. Electronic address: ciaranredmond1@gmail.com. 2. Department of Radiology, University of British Columbia, 11109-2775 Laurel St, Vancouver, BC V5Z 1M9, Canada.