1. From the Section of Thoracic Imaging, Department of Radiology (M.-T.W.), Division of Cardiovascular Surgery, Department of Surgery (T.-H.W.), and Division of Cardiology, Department of Medicine (D.L.), Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan, and the Faculty of Medicine, National Yang Ming University (M.-T.W., T.-H.W., D.L.), Taipei, Taiwan, ROC.