1. Department of Ultrasound, Shandong Provincial Qianfoshan Hospital, Shandong University; Jinan Shandong Province China
2. Department of Cardiac Surgery, Shandong Provincial Qianfoshan Hospital, Shandong University; Jinan Shandong Province China
3. Pathology; Shandong Provincial Qianfoshan Hospital, Shandong University; Jinan Shandong Province China