[1] Med Univ South Carolina, Dept Radiol & Radiol Sci, Div Cardiovasc Imaging, Charleston, SC 29425 USA
[2] Univ Rome Sapienza, Dept Radiol Sci Oncol & Pathol Sci, Latina, Italy
[3] Med Univ South Carolina, Dept Med, Div Cardiol, Charleston, SC 29425 USA
[4] Seoul Metropolitan Govt Seoul Natl Univ, Boramae Med Ctr, Dept Radiol, Seoul, South Korea
[5] Heart Ctr Munich Bogenhausen, Dept Cardiol & Intens Care Med, Munich, Germany
[6] Univ Hosp Tuebingen, Dept Diagnost & Intervent Radiol, Tubingen, Germany