1 National Heart and Lung Institute, Imperial College London, London, SW7 2AZ, UK; Cardiovascular Research Centre, Royal Brompton Hospital, SW3 6NP, London, UK. Electronic address: [email protected].
2 School of Biomedical Engineering, Sun Yat-Sen University, Shenzhen, 510006, China. Electronic address: [email protected].
3 National Heart and Lung Institute, Imperial College London, London, SW7 2AZ, UK; Cardiovascular Research Centre, Royal Brompton Hospital, SW3 6NP, London, UK.
4 Department of Medical Imaging, Western University, London, ON, Canada; Digital Imaging Group, London, ON, Canada.