1. Computer Science Department, Pontificia Universidad Católica de Chile, Vicuña Mackenna, Santiago, Chile
2. Department of Radiology, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
3. Department of Electrical Engineering, Pontificia Universidad Católica de Chile, Vicuña Mackenna, Santiago, Chile
4. School of Biomedical Engineering and Imaging Sciences, King’s College London,St Thomas’ Hospital, London, UK
5. School of Computing and Information Systems, The University of Melbourne, Australia