1. Department of Imaging (MRU), Imperial College of Science, Technology and Medicine (NHLI), Royal Brompton Hospital, London, United Kingdom
2. Department of Imaging, University of Toronto, Ontario, Canada
3. Instituto de Telecomunicaciones y Aplicaciones Multimedia, Universidad Politécnica de Valencia, Valencia, Spain
4. Instituto Universitario de Automática e Informática Industrial, Universidad Politécnica de Valencia, Valencia, Spain
5. Department of Informatics and Medical Technology, Faculty of Health Sciences, Semmelweis University, Budapest, Hungary