1. Department of Electrical Engineering, National Chin-Yi University of Technology, Taichung City, Taiwan
2. Show-Chwan Memorial Hospital, Division of Cardiovascular Surgery, Changhua, Taiwan
3. Department of Surgery, Division of Cardiovascular Surgery, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan City, Taiwan
4. Ministry of Health Welfare and School of Biomedical Engineering, College of Biomedical Engineering, Institute Food and Drug Administration, Taipei Medical University, Taipei, Taiwan