1 Department of Internal Medicine, Cleveland Clinic, Cleveland, Ohio, USA.
2 Department of Cardiovascular Medicine, Heart, Vascular and Thoracic Institute, Cleveland Clinic, Cleveland, Ohio, USA.
3 Department of Diagnostic Radiology, Imaging Institute, Cleveland Clinic, Cleveland, Ohio, USA.
4 Department of Cardiovascular Medicine, Heart, Vascular and Thoracic Institute, Cleveland Clinic, Cleveland, Ohio, USA. Electronic address: [email protected].