1. From the Cardiology Department, Thorax Institute (J.F.A., A.B., D.A., E.S., R.E., J.T.O.-P., M.S., L.M., J.B.), and Cardiac Imaging, Radiology Department, Center for Diagnostic Imaging, Hospital Clínic (T.M.D.C., R.J.P.), Universitat de Barcelona, Barcelona, Spain; Information and Communication Technologies Department, Universitat Pompeu Fabra, Barcelona, Spain (O.C., L.S., V.B., L.C.); Department of Mechanical Engineering, University of Sheffield, Sheffield, United Kingdom (A.F.); and Institut...