Department of Echocardiography Shandong Provincial Hospital Cheeloo College of Medicine Shandong University Jinan Shandong 250021 China;
Department of Cardiovascular Surgery The First Affiliated Hospital of Shandong First Medical University Jinan Shandong 250021 China;
Department of Echocardiography Zhangqiu People's Hospital Jinan Shandong 250200 China;
Department of Echocardiography Shandong Provincial Hospital Cheeloo College of Medicine Shandong University Jinan Shandong 250021 China;
Department of Echocardiography Shandong Provincial Hospital Cheeloo College of Medicine Shandong University Jinan Shandong 250021 China;
Department of Echocardiography Shandong Provincial Hospital Cheeloo College of Medicine Shandong University Jinan Shandong 250021 China;
Department of Echocardiography Shandong Provincial Hospital Cheeloo College of Medicine Shandong University Jinan Shandong 250021 China;
Department of Radiology Shandong Provincial Hospital Cheeloo College of Medicine Shandong University Jinan Shandong 250021 China;