1. Department of Interventional Ultrasound, Chinese PLA General Hospital, Beijing 100853, PR China
2. Key Laboratory of Molecular Imaging, Institute of Automation, Chinese Academy of Sciences, Beijing 100190, PR China
3. Department of Cardiology, Chinese PLA General Hospital, Beijing 100853, PR China
4. Department of Interventional Radiology, Chinese PLA General Hospital, Beijing 100853, PR China