Division of Cardiology, Mount Sinai St. Luke's and Mount Sinai Heart, 1111 Amsterdam Avenue, New York, NY, 10025, USA. Alan.rozanski@mountsinai.org. Departments of Imaging and Medicine and the Smidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, CA, USA. Alan.rozanski@mountsinai.org. Division of Cardiology, Mount Sinai St. Luke's and Mount Sinai Heart, 1111 Amsterdam Avenue, New York, NY, 10025, USA. Departments of Imaging and Medicine and the Smidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, CA, USA.