Department of Radiology, Dalio Institute of Cardiovascular Imaging, NewYork-Presbyterian Hospital and Weill Cornell Medicine, New York. Department of Cardiology, Leiden University Medical Center, Leiden, the Netherlands. Department of Molecular Medicine, Section of Cardiology, University of Pavia, Pavia, Italy. Department of Healthcare Policy and Research, NewYork-Presbyterian Hospital and Weill Cornell Medical College, New York. Centro Cardiologico Monzino, IRCCS Milan, Italy. Houston Methodist DeBakey Heart and Vascular Center, Houston Methodist Hospital, Houston, Texas. Department of Medicine, Los Angeles Biomedical Research Institute, Torrance, California. Cardiovascular Imaging Center, SDN IRCCS, Naples, Italy. Department of Cardiology, William Beaumont Hospital, Royal Oak, Michigan. Pusan University Hospital, Busan, South Korea. UNICA, Unit of Cardiovascular Imaging, Hospital da Luz, Lisboa, Portugal. Department of Radiology, Casa de Saude São Jose, Rio de Janeiro, Brazil. Department of Radiology and Nuclear Medicine, German Heart Center Munich, Munich, Germany. Department of Medicine and Radiology, University of British Columbia, Vancouver, British Columbia, Canada. Department of Radiology, Area Vasta 1/ASUR Marche, Urbino, Italy. Division of Cardiology, Department of Internal Medicine, Ewha Woman's University Seoul Hospital, Seoul, Korea. Department of Internal Medicine, Seoul National University College of Medicine, Cardiovascular Center, Seoul National University Hospital, Seoul, South Korea. Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea. Seoul National University Bundang Hospital, Sungnam, South Korea. Division of Cardiology, Severance Cardiovascular Hospital, Yonsei University College of Medicine, Yonsei University Health System, Seoul, South Korea. Yonsei-Cedars-Sinai Integrative Cardiovascular Imaging Research Center, Yonsei University College of Medicine, Yonsei University Health System, Seoul, South Korea. Department of Pathology, CVPath Institute, Gaithersburg, Maryland. Division of Cardiology, Emory University School of Medicine, Atlanta, Georgia. Cardiovascular Division, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts. Department of Imaging and Medicine, Cedars Sinai Medical Center, Los Angeles, California. Icahn School of Medicine at Mount Sinai, Mount Sinai Heart, Zena and Michael A. Wiener Cardiovascular Institute, and Marie-Josée and Henry R. Kravis Center for Cardiovascular Health, New York, New York. Cleerly Inc, New York, New York. Heart Center, University of Turku and Turku University Hospital, Turku, Finland. Ontact Health Inc, Seoul, South Korea.